Visual C++ General 论坛

Calling a Function Need Help ASAP

Sun, 29 Nov 2009 23:23:20 Z

I am confused about calling functions and need help. I do not know what I am doing wrong. The code does not have any errors, but does not work correctly. I have found several different ways to call functions, but I am unsure as to how to use them. Please help ASAP.

#include <iostream> 
using std::cin; 
using std::cout; 
using std::endl; 

#include <cstdlib>
using std::rand;
using std::srand;

#include <ctime>
using std::time;

void multiplication(); 	// function prototype for the function you are programming! 
void correctMessage(); 	// function prototype
void incorrectMessage();	 // function prototype
bool needHelp( int, int );	 // function prototype 

int main()
{
   srand( (unsigned int)time( 0 ) ); 		// seed random number generator
   multiplication();		 // begin multiplication practice
   
   return 0; 		// indicate successful termination

} // end main

// function multiplication produces pairs of random numbers and prompts the user for the product 
//    it also produces random comments for correct and incorrect answers by calling the appropriate function
//    in addition, it counts the number of correct and incorrect answers, and
//    after 10 answers, it calculates the percentage of correct answers;
//   if the percentage is lower than 75%, it calls the function needHelp and terminates.

void multiplication()
{
   // Variable declarations; no other variables are required.
   int x; 		// first factor
   int y; 		// second factor
   int response = 0; 	// user response for product
   int correct = 0; 	// total number of correct responses 
   int incorrect = 0; 	// total number of incorrect responses
   int count = 0; 	// count for every 10 responses
     
   // use sentinel-controlled repetition
   cout << "Enter -1 to End." << endl;

   // loop until sentinel value read from user
   while ( response != -1 )
   {
	   x = rand() % 10; // generate 1-digit random number
	   y = rand() % 10; // generate 1-digit random number

	   cout << "How much is " << x << " times " << y << " (-1 to End)? ";
	   cin >> response;

	   // loop until sentinel value or correct response
	   while ( response != -1 && response != x * y )
	   {
		response = incorrect; // calls incorrectMessages()
	   } // end while

	   // correct response
	   if ( response == x * y ) 
		  response = correct; // call correctMessage()
   } // end while

   cout << "That's all for now. Bye." << endl;
   } // end function multiplication
 

// function correctMessage randomly chooses response to correct answer
void correctMessage()
{
   // generate random number between 0 and 3
   switch ( rand() % 4 ) 
   {
      case 0:
         cout << "Very good!";
         break;
      case 1:
         cout << "Excellent!";
         break;
      case 2:
         cout << "Nice work!";
         break;
      case 3:
         cout << "Keep up the good work!";
         break;
   } // end switch

   cout << endl << endl;
} // end function correctMessage



// function incorrectMessage randomly chooses response to incorrect answer
void incorrectMessage()
{
   // generate random number between 0 and 3
   switch ( rand() % 4 ) 
   {
      case 0:
         cout << "No. Please try again.";
         break;
      case 1:
         cout << "Wrong. Try once more.";
         break;
      case 2:
         cout << "Don't give up!";
         break;
      case 3:
         cout << "No. Keep trying.";
         break;
   } // end switch

   cout << endl << "? ";
} // end function incorrectMessage



// function needHelp returns true if < 75% right
bool needHelp( int right, int wrong ) 
{
   // if < 75% right
   if ( static_cast< double > ( right ) / ( right + wrong ) < .75 ) 
   {
      cout << "Please ask your instructor for extra help." << endl;
      return true;
   } // end if
   else // otherwise, return false
      return false;
} // end function needHelp

How to convert from char* to lpcwstr in ansi C with visua studio 2005

Sun, 29 Nov 2009 20:57:01 Z

How to convert from char* to lpcwstr in ansi C with visual studio 2005?.

Help!, thanks.

Is there an API to export the entire registry from the computer level like regedit/file/export does?

Sun, 29 Nov 2009 13:57:02 Z

Is there an API to export the entire registry from the computer level like regedit/file/export does?
Don't see RegSaveKey takes Computer as HKEY.

No ncb file and parameters set but no Intellisense

Sun, 29 Nov 2009 21:49:43 Z

I have a Visual Studio solution that is essentially the Windows CE operating system. There is a *.sln and a *.suo file, but no *.ncb Intellisense file. I have options "Auto List Members" and "Parameter Information" set in the Options, but nothing happens. If I right click on anything and sak for "Go to definition" I get "x is not defined" I have not been able to turn on Intellisense for love or money. Help!

Atl Attributes Tutorial

Sun, 29 Nov 2009 20:33:38 Z

Hi,
Atl Attributes Tutorial needs attributed option which isn't supported by Visual Studio 2008 (Microsoft .Net Framework 3.5).
How should I complete the Step 3: Implementing the Server in Atl Attributes Tutorial ?
The problem is To add and define the Transfer event .

Thanks in advance,
Eyal

MFC and Excel Automation Copy sheet failed issue

Sun, 29 Nov 2009 05:54:26 Z

I am trying to create a new sheet from a copy of an existing sheet. So far I have not had any luck.

Below is the code that I am using/used to try and get the sheet copied. However, everything I do results in an error message stating that the copy failed.

	COleVariant covOpt((long)DISP_E_PARAMNOTFOUND, VT_ERROR), covWidth((short)40), covFalse((short)FALSE), covTrue((short)TRUE);

	COleVariant vBefore, vAfter, vCount, vType;
	LPDISPATCH lpDisp;
	Worksheets oTemplateSheets;
	_Worksheet oTemplateSheet, oNewSheet;
	Range oRange, oRange2;

	// Set the template as the active sheet
	oTemplateSheet = m_oWorkSheets.GetItem(COleVariant((short)1));
	oTemplateSheet.Activate();


	oTemplateSheet.Unprotect(covOpt);

	// Insert next to active sheet
	vAfter.vt = VT_DISPATCH;
	vAfter.pdispVal = m_oWorkSheets.GetItem(COleVariant((short)2));
	//vAfter.vt = VT_I2;
	//vAfter.iVal = 1;


	oTemplateSheet.Copy(covOpt, vAfter);

	oTemplateSheet.Protect(covOpt, covOpt, covOpt, covOpt, covOpt);

I found the following article that was very helpful, but when I tried it the formatting of the original sheet was not copied. e.g. panes freeze

http://codeguru.earthweb.net/forum/showthread.php?p=796794

_Application app;
Workbooks books;
_Workbook book;
Worksheets sheets;
_Worksheet sheet,sheet2;
Range range,range2;

COleVariant
covOpt((long)DISP_E_PARAMNOTFOUND, VT_ERROR),covWidth((short)40),
covFalse((short)FALSE),
covTrue((short)TRUE);
if(!app.CreateDispatch("Excel.Application")) return;

app.SetDisplayAlerts(FALSE);
app.SetVisible(TRUE);
app.SetUserControl(TRUE);

books = app.GetWorkbooks();
book = books.Open("d:\\junk.xls",covOpt,covOpt,covOpt,covOpt,covOpt,covOpt,covOpt,covOpt,covOpt,covOpt,covOpt,covOpt);
sheets =book.GetSheets();

sheet=sheets.GetItem(COleVariant((short)1));
range=sheet.GetUsedRange();
range.Copy(covOpt);
sheet2=sheets.Add(covOpt,covOpt,covOpt,covOpt);
range2=sheet2.GetRange(COleVariant("A1"),COleVariant("A1"));
range2.Select();
sheet2.Paste(covOpt,covOpt);
app.ReleaseDispatch();
app=NULL;

Does anyone have any suggestions? I have tried changing the copy Variants to everything I can think of, but these all failed. The only time it does not is if both are set to covOpt. However, this does not create the sheet in the same workbook.

TIA

using dll made with visual studio 6.0 in visual studio 4.2-project

Thu, 26 Nov 2009 19:00:28 Z

Is it possible to use a dll that is made using Visual C++ 6.0 in Visual C++ 4.2 ?

I'm trying to use a dll which exports one function, int checkp(void*).

If I use .def file and define the function as:
extern "C" int checkp(void* data)
in 6.0, LoadLibrary in 4.2-code loads the dll but I can't get function's address with GetProcAddress.

If I export function using __declspec(dllexport) and link to dll normally in 4.2, linker warns about different subsystem (LNK4064) and doesn't find the function.

- jukka

Data pulling from database with a string problem.

Sun, 29 Nov 2009 17:45:09 Z

Any one able to help this would be awsome.

Here is the original code from PXI http://projectxi.org

int CZoneHandler::loadZoneList(unsigned short zone) {
 MYSQL_RES * res;
 MYSQL_ROW row;
 MYSQL* mysqlConn;
 unsigned long size = 0, count, *lengths;
 char query[4096];
 
 if(zone > 255) {
  return 0;
 }
 CConsole::outTime("Loading %s...", CUtil::getZoneName(zone));
 
 //Clear the NPC list for the zone, incase this is a reload
 if((this->npcZoneList[zone].size() > 0)) {
  this->npcZoneList[zone].clear();
 }
 //Clear the MOB list for the zone, incase this is a reload
 if((this->mobZoneList[zone].size() > 0)) {
  this->mobZoneList[zone].clear();
 }
 //Clear the Region list for the zone, incase this is a reload
 if((this->m_zoneList.at(zone).m_pRegionList->size() > 0)) {
  this->m_zoneList.at(zone).m_pRegionList->clear();
 }

 //load NPCs and MOBs
 sprintf(query, 
  "SELECT npc.name, npc.id, npc.type, npc.type, npc.flag, npc.look, npc.animation,npc.alt_animation, npc.namevis, npc.speed, npc.alt_speed, npc.targid, npc.status, npc.unknown, npc.name_prefix, npc.pos_x, npc.pos_y, npc.pos_z, npc.pos_rot FROM `npc_list` AS npc WHERE npc.zone = %i ORDER BY id ASC",
   zone);
 count = (int) strlen(query);
 mysqlConn=CDb::getConn(); //get conn
 mysql_real_query(mysqlConn, query, count);
 res = mysql_store_result(mysqlConn);
 CDb::pushConn(mysqlConn); //release conn
 char newName[512];
 if(!res) {
 // CConsole::outErr("Zone 0x%X\t -> %s not found in DB!",zone ,CUtil::getZoneName(zone));
  //return 0;
 } else if(!mysql_num_rows(res)) {
  mysql_free_result(res);
  //return size;
 } else {
  int npccnt = 0;
  int mobcnt = 0;
  int run = 0;
  CNpc* npc;
  while((row = mysql_fetch_row(res))) {
   npc = new CNpc();
   lengths = mysql_fetch_lengths(res);
   
   memset(npc->m_name, 0 , 17);
   memset(newName,0,512);
   memcpy(newName, row[0], lengths[0]);
   memcpy(npc->m_name,newName,16);
   npc->setId((unsigned int)atoi(row[1]));
   npc->setZone((unsigned char)zone);
   npc->type    = atoi(row[2]);
   npc->moveState   = 0;
   npc->flag    = atoi(row[4]);
   if(npc->type == 0x57) {
    memcpy(&npc->lookc, row[5], 20);
   }
   else {
    memcpy(&npc->look, row[5], 4);
   }
   npc->setAnimation(atoi(row[6]));
   npc->m_animationAlt = atoi(row[7]);
   npc->namevis   = atoi(row[8]);
   npc->m_speed   = atoi(row[9]);
   npc->m_speedAlt  = atoi(row[10]);
   npc->setTargId(atoi(row[11]));
   npc->status   = atoi(row[12]);
   npc->unknown   = atoi(row[13]);
   npc->loc.p.x = (float) atof(row[15]);
   npc->loc.p.y = (float)atof(row[16]);
   npc->loc.p.z = (float)atof(row[17]);
   npc->loc.p.rotation = (unsigned short)atoi(row[18]);
   
   npc->incombat = false;
   npc->ownerId  = 0;
   npc->oldtime  = 0;
   npc->update   = false; 
   npc->timestamp = 0;
   npc->targ_p = npc->loc.p;
   npc->m_maxHp  = 100;
   npc->h.hp  = npc->getMaxHp();
  
   npc->m_objType = OBJ_NPC;
   npc->sizeMod = 0;
   
   npccnt++;
   this->npcZoneList[zone].push_back(npc);
   npc = NULL;
  }
  //CConsole::outTime("Zone 0x%X\t -> %i NPCs %i MOBs loaded!",zone ,npccnt, mobcnt);
  mysql_free_result(res);
 }
 
 //CConsole::outTime("Zone 0x%X\t %s -> %i PATH %i SPAWN points loaded!",zone ,CUtil::getZoneName(zone) ,pathcnt, spawncnt);
 CLuaManager::OnZoneInitialize(zone);
 //CConsole::outTimePos(0,9, "                                               ");
 return 0;
}

Now here is our code that we are workign with.

int CZoneHandler::loadZoneList(unsigned short zone) 
{
 //char newName[512];
 int npccnt = 0;
 int mobcnt = 0;
    int run = 0;
 CNpc* npc;
 if (zone > 255) 
 {
  return 0;
 }
 if((this->npcZoneList[zone].size() > 0)) {
  this->npcZoneList[zone].clear();
 }
 //Clear the MOB list for the zone, incase this is a reload
 if((this->mobZoneList[zone].size() > 0)) {
  this->mobZoneList[zone].clear();
 }
 //Clear the Region list for the zone, incase this is a reload
 if((CLuaManager::regionList[zone].size() > 0)) {
  CLuaManager::regionList[zone].clear();
 }
  QueryResult *result = WorldDatabase.PQuery("SELECT npc.name, npc.id, npc.type, npc.type, npc.flag, npc.look, npc.animation,npc.alt_animation, npc.namevis, npc.speed, npc.alt_speed, npc.targid, npc.status, npc.unknown, npc.name_prefix, npc.pos_x, npc.pos_y, npc.pos_z, npc.pos_rot FROM `npc_list` AS npc WHERE npc.zone = %i ORDER BY id ASC",zone);
  if( !result )
    {
  sLog.RedConsoleMsg ("Zone 0x%X\t -> %s Npcs not found in DB!",zone ,CUtil::getZoneName(zone));
        return 0;
    }
 sLog.LGreenConsoleMsg("Loading %s...", CUtil::getZoneName(zone));
 barGoLink bar( result->GetRowCount() );
 
  do
  {
   Field *fields = result->Fetch();
        bar.step();
     npc = new CNpc();
  
   /*  const char* nametest = fields[0].GetString();
     
     
          
   memset(npc->m_name, 0 , 17);
   memset(newName,0,512);
   memcpy(newName, nametest, 25);
   memcpy(&npc->m_name,newName,16);*/
   npc->setId(fields[1].GetUInt16());
   npc->setZone((unsigned char)zone);
   npc->type    = fields[2].GetUInt16();//atoi(row[2]);
   npc->moveState   = 0;
   npc->flag    = fields[4].GetInt32();//atoi(row[4]);
   
   /*const char* lookstest = fields[5].GetString();
   if(npc->type == 0x57) 
   {
   
    memcpy(&npc->lookc, lookstest, 20);
   }
   else 
   {
    memcpy(&npc->look, lookstest, 4);
   }*/
   npc->setAnimation(fields[6].GetUInt16());
   npc->m_animationAlt = fields[7].GetUInt16();//atoi(row[7]);
   npc->namevis   = fields[8].GetUInt16();//atoi(row[8]);
   npc->m_speed   = fields[9].GetUInt16();//atoi(row[9]);
   npc->m_speedAlt  = fields[10].GetUInt16();//atoi(row[10]);
   npc->setTargId(fields[11].GetUInt32());
   npc->status   = fields[12].GetUInt32();//atoi(row[12]);
   npc->unknown   = fields[13].GetUInt32();//atoi(row[13]);
   npc->loc.p.x = fields[15].GetFloat();//(float) atof(row[15]);
   npc->loc.p.y = fields[16].GetFloat();//(float)atof(row[16]);
   npc->loc.p.z = fields[17].GetFloat();//(float)atof(row[17]);
   npc->loc.p.rotation = fields[18].GetUInt16();
   
   npc->incombat = false;
   npc->ownerId  = 0;
   npc->oldtime  = 0;
   npc->update   = false; 
   npc->timestamp = 0;
   npc->targ_p = npc->loc.p;
   npc->m_maxHp  = 100;
   npc->h.hp  = npc->getMaxHp();
  
   npc->m_objType = OBJ_NPC;
   npc->sizeMod = 0;
   
   npccnt++;
   this->npcZoneList[zone].push_back(npc);
   npc = NULL;

   } while (result->NextRow());
  delete result;
    sLog.outString();
 
 CLuaManager::OnZoneInitialize(zone);
 
 return 0;
}

Our problems are Displaying the Names for the NPCS and Displaying the Look or the costume the NPC is. In wow server this would be called DisplayID.
Im unable to pull the data from the database into the game to show the name of the NPC and the look of the NPC. Please id any one can help this would be awsome becasue I just cant get it yet I been trying for 4 days so far.

here is where Im having problems converting the code over to our system.
Here is the original code from PXI http://projectxi.org

lengths = mysql_fetch_lengths(res);
   
   memset(npc->m_name, 0 , 17);
   memset(newName,0,512);
   memcpy(newName, row[0], lengths[0]);
   memcpy(npc->m_name,newName,16);

I need to beable to make our system do this also. to pull the names correctly.

Here is the original code from PXI http://projectxi.org

if(npc->type == 0x57) {
    memcpy(&npc->lookc, row[5], 20);
   }
   else {
    memcpy(&npc->look, row[5], 4);
   }

Here is where we would get the DisplayID or the Look of the NPC costume they are in. But Were unable to pull the data into our server with our system so far So if any one can solve this problem please help.

Robert Puckett

Getting Type Library for DLL (c++ COM)

Sun, 29 Nov 2009 15:15:54 Z

Hi,

I would like to get an type library from existing COM DLL using command line. Is it possible?
The final goal is to get type library that could be used as input for mt.exe to create manifest file for registry free COM.

Thanks

Priority Queue

Sun, 29 Nov 2009 04:10:23 Z

Hi, The current implementation of Priority Queue does not allow us to remove a partiuclar element from the priority queue. Instead we can only remove the top element and that's it. I am trying to implement my own priority queue as a result. So far I tried with vectors as underlying data structures but its slow because of too much iteration while insertion. Just wondering what will be the best underlying data structure for implementing priority queues so that, insertion, removal of a particular element (and of course it should keep elements in the sorted order) can be done in log n worst case scenario or close to that.

Thanks

Amare

How to move the vertical scrollbar on CEdit control to the bottom to show all the text after SetWindowText?

Sat, 28 Nov 2009 13:38:02 Z

I tried the following code, the scrollbar does move to the bottom, but it does not show all the text, always about 7 lines are out. If I click on the scrollbar, instantly the scrollbar moves up a bit, then I can manually move the bar to the bottom and see all the text.

SCROLLINFO info;
CWnd * edit = this->GetDlgItem(IDC_EDITPINGSTATUS);
edit->GetScrollInfo(SB_VERT, &info);
edit->SetScrollPos(SB_VERT,info.nMax);

what extra needs to be called to show all the text up to real bottom?

TIA

Get "Class not registered" error when calling ApcHost.Create when the code is compiled using VS 2008

Thu, 19 Nov 2009 14:10:59 Z

Following is my code:

HRESULT hr = NOERROR;

CString name,strLicKey(LICENSEKEY);

name = m_pszAppName;

DWORD dwLCID = MAKELCID(m_nVBALanguage,SORT_DEFAULT);

CComPtr<IRPHApplication> p;

ApcGetPrimary(&p);

hr = ApcHost.Create(GetMainWnd()->m_hWnd, name.AllocSysString(),

p, strLicKey.AllocSysString(),dwLCID) ;

The last call fails.
When VS 6.0 is used, this works fine.
Thanks in advance for any help.
Zvika.

error C4430 with class, help !!!

Sun, 29 Nov 2009 06:01:31 Z

hi,

I have a class Vehicles like (in Vehicle.h):

class Vehicles
{
public:
    Vehicles(Core *frameListener, K_SceneManager *sceneMgr, VEHICLE_TYPE type, K_VECTOR offset = K_VECTOR::ZERO, Vehicles *leader = NULL);
    ~Vehicles(K_EMPTY);
}

And in a include file (SteeringBehavior.h), i have:

#pragma once
class Vehicles;

class SterringBehaviors
{
       SteeringBehaviors(Vehicles *vehicle);
}

then i compile, I have an error message at line with bold color above, this error like:

error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

I try to fix the error but i couldn't, i don't where my code is wrong ? Anybody help me ?

Thanks

thanhly's

No error in release mode. Why not ?

Sat, 28 Nov 2009 17:06:24 Z

#include <iostream>

using namespace std;

int main()
{
     char *p = "John";
     *p = 'A';
     cout << p << endl;     // Prints "John" in release mode without error
}

As expected, in debug mode there's an error.

How to explain this right shift

Sat, 28 Nov 2009 13:00:04 Z

Here is the some basic definitions:
1.

#define IP_ADDRESS_FAMILY(buffer)       ((*(PUCHAR)(buffer)) >> 4)

#define IP_ADDRESS_FAMILY_IP4           4

  UCHAR                   packetBuffer[ETH_MAX_PACKET_SIZE];

  UCHAR                   AddressFamily = 0;

3.
suppose that packetBuffer is used to save some network data with underline received by our NIC. The data is described as bellow:
    000000: 00 A0 CC 63 08 1B 00 40 : 95 49 03 5F 08 00 45 00 ...c...@.I._..E.
    000010: 00 3C 82 47 00 00 20 01 : 94 C9 C0 A8 01 20 C0 A8 .<.G.. ...... ..
    000020: 01 40 08 00 48 5C 01 00 : 04 00 61 62 63 64 65 66 .@..H\....abcdef
    000030: 67 68 69 6A 6B 6C 6D 6E : 6F 70 71 72 73 74 75 76 ghijklmnopqrstuv
    000040: 77 61 62 63 64 65 66 67 : 68 69                    wabcdefghi......
4. Let's consider about the following codes:

AddressFamily = IP_ADDRESS_FAMILY(packetBuffer + bytesParsed);
      
      if (IP_ADDRESS_FAMILY_IP4 == AddressFamily){

    //do something ....

}

in above codes: bytesParesd is the length of network data identified by bold type. I am confused that why the right shift by 4 could get the number 4（UCHAR）?(Notes: network data is hexadecimal) 。 thanks very much

Work and Smile

Strange linker error

Sat, 28 Nov 2009 19:50:43 Z

I recieve this error when I try to compile any project in VC++ 2008:

LINK : fatal error LNK1181: cannot open input file '.\Release\Test.obj'

Same thing but with debug instead of release if it's set to debug configuration.

This is after reinstalling, (I kept getting the error before and couldn't fix it so I removed VC++ with Add/Remove Programs and then resintalled it) nothing changed, I just clicked file > new > project, and then created an empty project called test. The only code in the project is:

int main()

{

return 1;

}

I had to do a Windows XP repair installation a while back and that seems to be when this started. I was able to compile projects before that. I have SP 3 installed.

I'm able to compile projects in Dev-C++, but need VC++ for DirectX applications.

Which is the best tool for designing stylish GUI.?

Thu, 26 Nov 2009 04:13:09 Z

Hello ,

I want to know which is the best tool which can be used to make GUI . Currently I'm working on VC++ 6.0 and I can't give a good look(Vista Look) in that.

So can anyone help me which one will be more suitable for GUI .. Java or any other tool and if you can give the reason then it is very helpful.

Thanks

Copy a file (With process)

Fri, 27 Nov 2009 11:34:59 Z

Hi,

I want to copy a File From Location A to B

I know i could use one of the following methods

Using Buffers [ifstream.read(),ofstream.write()]
File handles[CreateFile(),ReadFile(),WriteFile() ]
goldenoldie[_tsystem(_T("copy A B"))]

but i want to receive/calculate the status
so when copy a large file the user can see its process...

are handles global to processes?

Sat, 28 Nov 2009 15:51:33 Z

Hello, i am trying to take a handle (like HBITMAP) and pass it to another process (while its still valid) to draw that bitmap, its not working though.

whats going on here, are handles specific to processes? and cannot be passed on to another process? thank you in advance.

How to Get the Hbrush from Brush object???

Sat, 28 Nov 2009 05:53:25 Z

Hi
I have a brush of type HBRUSH and i want to use it inside FillPath method, but the problem is that FillPath takes GDI+ Brush object so i cant use it directly
so is there any method available to type cast HBRUSH object to Brush object???
please suggest some way to do this...

Thanks in advance
Mahesh Mahindrakar...

Setting User Registry Keys (HKCU) From a Local System Account Service

Tue, 24 Nov 2009 22:09:04 Z

Greetings,

I have a service running on the local system account, from which I wish to modify the the registry settings for the logged on user in the currently active session. Note that if a process (service) is running in the local system account, accessing HKCU will redirect to HKCU\.Default, rather than to the hive of a logged on user in the active session.

From researching the net, I have figured this process to involve impersonating a logged on user from within my service and then accessing the registry. This works in as much as opening an HKCU key does in fact operate on the user's hive. HOWEVER, since the user that I am impersonating does not have authority to modify certain registry settings, once the service impersonates them it cannot modify the settings! AAAACKK!

So you figure, "Let's just adjust the priveledges of the token". Sorry, that won't work either, since AdjustTokenPriveledges will only modify existing privs that the token already has :(

So the question is, "How do you modify ANY registry settings for the logged on user of the active session from the local system account?"

So far, this is what I have.

Run a service in the local system account
From that service, obtain a process handle (via OpenProcess) to a process that is running in the active session of a logged on user (i.e., "explorer.exe"). This uses the toolhelp API and WTSGetActiveConsoleSessionId(), etc.
From the process handle, I obtain it's token
Using the token, call "ImpersonateLoggedOnUser"
Access the registry (And be denied!)
Call "RevertToSelf" to revert the service back to itself

What I need is a token that impersonates the user but has the priveledges of the local system account :)
Kind regards,

Steve

MFC Automation how to implement RemoveDocument OnCloseDocument

Tue, 24 Nov 2009 22:41:03 Z

I have an MFC MDI Application and I am trying to implement Automation with it. I am trying to create a RemoveDocument() method. How is that done? OnCloseDocument is causing problems. Is there a "standard" way for doing that?

my sample automation code would look like this:

        Dim App As New MyApp.Application
        Dim Docs As MyApp.Documents
        Dim Doc As MyApp.Document
        Docs = App.Documents

        Doc = Docs.OpenDocument("C:\Test.txt")
        Doc.Save()
        Docs.CloseDocument(Doc)
        Doc = Nothing

        ' Need the ability to reopen the doc
        Doc = Docs.OpenDocument("C:\Test.txt")
        Doc.Save()
        Docs.CloseDocument(Doc)
        Doc = Nothing

        Docs = Nothing
        App = Nothing

This always results in a crash... I even tried the TIA sample from 1998.. that sample has issues as well..

Finding the reason for StretchBlt failing

Fri, 27 Nov 2009 23:49:42 Z

In my WM_PAINT handler code in a dialog I call StretchBlt and it fails with a return of FALSE. The source DC is a memory DC and the destination DC is my WM_PAINT handler DC accessed via the BeginPaint function.

According to the documentation for StretchBlt:

"StretchBlt If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. Windows NT/2000/XP: To get extended error information, call GetLastError ."

So I immediately call GetLastError only to be returned 0.

I checked the capabilities of both the source and destination device contexts using GetDeviceCaps and RASTERCAPS and had supported for the source and destination devices:

RC_BITBLT
RC_BITMAP64
RC_DI_BITMAP
RC_DIBTODEV
RC_STRETCHBLT
RC_STRETCHDIB

while the destination device also had RC_FLOODFILL supported.

I am baffled on how to determine why the StretchBlt fails as it is keeping a window from displaying data. If I attempt other device context operations on my destination context, such as FillRect, Rectangle, TextOut etc., they all succeed. It is possible the rectangular co-ordinates for my source and destination DCs are "incorrect" in the StretchBlt call, but I would expect a GetLastError code if that were the situation.

Any ideas or help tracking this GDI failure down would be appreciated.

I am testing this on Windows Vista 64 Ultimate in a 32-bit application.

More than 100 errors compiling StdAfx.cpp !!!

Tue, 19 Feb 2008 10:44:43 Z

Here is the error list, I am truly desparated:

------ Build started: Project: IEHelper, Configuration: Debug Win32 ------

Compiling...

StdAfx.cpp

Note: including file: c:\dokumente und einstellungen\hp_besitzer\eigene dateien\visual studio 2008\projects\bho_re\stdafx.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\atlmfc\include\atlbase.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\atlmfc\include\atldef.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\atlmfc\include\atlrc.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\include\errno.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\include\sal.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\include\malloc.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\include\crtdefs.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\include\crtassem.h

Note: including file: C:\Programme\Microsoft Visual Studio 9.0\VC\include\vadefs.h

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(117) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(118) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(118) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(118) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(118) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(118) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(118) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(119) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(120) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(121) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(122) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(122) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(122) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(122) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(122) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(122) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(123) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Post' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_Maybe' : undeclared identifier

missing quotes ("") around 'SA_Maybe'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_Yes' : undeclared identifier

missing quotes ("") around 'SA_Yes'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_Read' : undeclared identifier

missing quotes ("") around 'SA_Read'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2065: 'SA_No' : undeclared identifier

missing quotes ("") around 'SA_No'?

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : error C2337: 'SA_Pre' : attribute not found

c:\programme\microsoft visual studio 9.0\vc\include\malloc.h(124) : fatal error C1003: error count exceeds 100; stopping compilation

Build log was saved at "file://c:\Dokumente und Einstellungen\HP_Besitzer\Eigene Dateien\Visual Studio 2008\Projects\BHO_re\Debug\BuildLog.htm"

IEHelper - 102 error(s), 0 warning(s)

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

crash with Variantclear

Fri, 20 Nov 2009 15:34:42 Z

My program is crashing sometimes (not always) when the VariantClear function is called. VariantClear is trying to clean up a BString at the end of a thread. The Bstring is a message that is used for an input parameter of a com method. The event viewer shows that an access violation occured during the crash.
Anyone already has a clue? I'll put my code snippet here (it's the VariantClear at the end of the thread):

unsigned long __stdcall ProcessMSG( void* pArguments )
{
	BSTR			bstrInput;
	UINT			OleBufLen					= 0;
	char			szLogBuffer[MAXBUF];						// Used as buffer to format logoutput for MQ2COM
	// -------------
	// COM variables
	// -------------
	VARIANT		vArgsTypeText[1];								/* VARIANT, COM Invoke parameter */
	VARIANT		vResult;										/* VARIANT, COM Invoke parameter */
	DISPPARAMS	dpTypeText;										/* VARIANT, COM Invoke parameter */

	// ------------------------
	// Initialize COM variables
	// ------------------------
	HRESULT		hResult						= S_OK;				/* Result handle */
	int			iResult						= 0;
	

	// ------------
	// MQ variables
	// ------------
	MQMD		mqOutputMessageDescriptor	= {MQMD_DEFAULT};	/* Local Output Message Descriptor */
	
	// ---------------
	// Timer variables
	// ---------------
	clock_t		tStart;											
	clock_t		tFinish;										

	// --------------------------------------------
	// Initialize buffers for LOG and DATA messages
	// --------------------------------------------
	char *pszTempBuffer		= NULL;
	char *pszLogBuffer		= NULL;	
	
	unsigned long ulThisThreadID;

	// --------------------------------
	// Initialize variable containing id of this thread for logging to recognise which thread is putting the log message
	// --------------------------------
	ulThisThreadID = GetCurrentThreadId(); 
	
	// -------------------------------------------------
	// Set the CPU clock marking for statistical logging
	// -------------------------------------------------
	tStart = clock();											

	// --------------------------------
	// Initialize COM Invoke parameters
	// --------------------------------
	VariantInit(&vArgsTypeText[1]);
	VariantInit(&vResult);

	// ----------------------------------------------------------------------------------------------------
	// Put methode name and request buffer (input message) in an BSTR as needed for using the COM Interface
	// ----------------------------------------------------------------------------------------------------

	//ThreadParameters* pThreadParameters;
	//pThreadParameters = (ThreadParameters*) pArguments;
	//bstrInput  = SysAllocString(CComBSTR((char*)pThreadParameters->pszSendBuffer));

	bstrInput  = SysAllocString(CComBSTR((char*)pArguments));		/* This function allocates a new string and copies the passed string into it. */
	
	// -------------------------------------------------------------------
	// Input message descriptor is copied to the output message descripton
	// -------------------------------------------------------------------
																	/* Memcpy copies characters between buffers; */
																	/* void *memcpy( void *dest, const void *src, size_t count ) */
	memcpy(&mqOutputMessageDescriptor, &g_pMq->m_mqInputMessageDescriptor, sizeof(g_pMq->m_mqInputMessageDescriptor));
	memcpy(&mqOutputMessageDescriptor.CorrelId, &g_pMq->m_mqInputMessageDescriptor.CorrelId, sizeof(g_pMq->m_mqInputMessageDescriptor.CorrelId));
	memcpy(&mqOutputMessageDescriptor.MsgId, &g_pMq->m_mqInputMessageDescriptor.MsgId, sizeof(g_pMq->m_mqInputMessageDescriptor.MsgId));
	
	mqOutputMessageDescriptor.CodedCharSetId = MQCCSI_Q_MGR;		/* PH, 20031215 Codedcharachterset-id of queuemanager to which MQ2COM has been connected. */

	// ----------------------------------------------------------
	// Leave the critical section so Supervisor loop can continue
	// ----------------------------------------------------------
	::LeaveCriticalSection(&csSupCriticalSection);					/* The LeaveCriticalSection function releases ownership of the specified critical section object. */	

	// ----------------------
	// Copy Buffer to Variant
	// ----------------------
	vArgsTypeText[0].vt      = VT_BSTR;			/* vArgsTypeText is a variant. A variant always contains 2 fields. vt stands for variable type?*/
    vArgsTypeText[0].bstrVal = bstrInput;		/* Fill a variant with the request message */

	// --------------------
	// Set method arguments
	// --------------------
	/* Fill the Dispatch parameter structure. We expect 1 unnamed argument. 
		DISPPARAMS.cArgsargument				// Amount of unnamed arguments of the method.
		DISPPARAMS.cNamedArgs					// Amount of named arguments of the method.
		DISPPARAMS.rgvarg						// Array of argument values in reverse order. The parameters of the methode of the COM object.
												   With reverse order we mean that the last element of the array will contain the first parameter of the method. 		
	*/
	dpTypeText.cArgs	  = 1;					/* In this case rgvarg will contain just 1 argument */
    dpTypeText.cNamedArgs = 0;
    dpTypeText.rgvarg	  = vArgsTypeText;


	//BS,16022009, CoInitializeEx verplaatst naar de processmessage

	// ----------------------------------------
	// Initialize the COM library MULTITHREADED
	// ----------------------------------------
	hResult = CoInitializeEx(NULL, COINIT_MULTITHREADED);			/* Initializes the COM library for use by the calling thread, sets the thread's concurrency model, */
																	/*and creates a new apartment for the thread if one is required. */

	if (FAILED(hResult)) 
	{
		// Log naar BIMon queue (Event)
		sprintf(szLogBuffer,"Thread %d: Failed to initialize COM library",ulThisThreadID);
		logMessage(1,szLogBuffer);


		return -1;
	}


	// ----------------------------------------------------
	// Call method ... of COM object to execute COM methode
	// ----------------------------------------------------
	/* The method IDispatch::Invoke provides access to properties and methods exposed by an object.
		HRESULT Invoke( 
			DISPID				dispIdMember,	// Identifies the member. Use GetIDsOfNames or the object’s documentation to obtain the dispatch identifier. 
			REFIID				riid,			// Reserved for future use; set to IID_NULL. 
			LCID				lcid,			// The locale context in which to interpret parameters.  
			WORD				wFlags,			// Flags describing the context (A method or a property) of the Invoke call. DISPATCH_METHOD: The member is invoked as a method. 
			DISPPARAMS FAR		*pDispParams,	// Pointer to a structure that contains an array of parameters, an array of parameter DISPIDs for named parameters, and counts for the number of elements in the arrays. 
			VARIANT FAR			*pVarResult,	// Pointer to the location where the result is to be stored, or NULL if the caller expects no result. 
			EXCEPINFO FAR		*pExcepInfo,	// Pointer to a structure that contains exception information. Can be NULL.
			unsigned int FAR	*puArgErr		// The index within rgvarg of the first parameter that has an error. 
			);
	*/
	
	sprintf(szLogBuffer,"Thread %d: Calling the method of the COM object specified in the ini file",ulThisThreadID);
	logMessage(4,szLogBuffer);

	//16-02-2009, BAST, CoInitializeEx
	
	try {
		hResult = pDispatch->Invoke(dispid_Class, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, &dpTypeText, &vResult, NULL, NULL);
	}
	catch( _com_error &e ) {

		sprintf(szLogBuffer,"Thread %d: Com error opgetreden bij aanroep com method",ulThisThreadID);
		logMessage(4,szLogBuffer);
		// Crack _com_error
// 		_bstr_t bstrSource(e.Source());
// 		_bstr_t bstrDescription(e.Description());
// 		
// 		TRACE( "Exception thrown for classes generated by #import" );
// 		TRACE( "\tCode = %08lx\n",      e.Error());
// 		TRACE( "\tCode meaning = %s\n", e.ErrorMessage());
// 		TRACE( "\tSource = %s\n",       (LPCTSTR) bstrSource);
//         TRACE( "\tDescription = %s\n",  (LPCTSTR) bstrDescription);
	}
	catch (...) {
		
		sprintf(szLogBuffer,"Thread %d: Unhandled Exception opgetreden bij aanroep com method",ulThisThreadID);
		logMessage(4,szLogBuffer);
	}



	sprintf(szLogBuffer,"Thread %d: After calling the method of the COM object specified in the ini file",ulThisThreadID);
	logMessage(4, szLogBuffer);

	if (FAILED(hResult)) 
	{
		// Log naar BIMon queue (Event) (PH, 12-11-2003, changed, sprintf statement added and second parameter of LogMessage changed from "Method .." to szLogBuffer.
		//sprintf(szLogBuffer,"Method Invoke returned an Error");
		//logMessage(1,szLogBuffer);

		
		switch (hResult) {
		case S_OK:						{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, S_OK",ulThisThreadID);}						break;
		case DISP_E_BADPARAMCOUNT:		{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_BADPARAMCOUNT",ulThisThreadID);}		break;
		case DISP_E_BADVARTYPE:			{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_BADVARTYPE",ulThisThreadID);}			break;
		case DISP_E_EXCEPTION:			{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_EXCEPTION",ulThisThreadID);}			break;
		case DISP_E_MEMBERNOTFOUND:		{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_MEMBERNOTFOUND",ulThisThreadID);}		break;
		case DISP_E_NONAMEDARGS:		{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_NONAMEDARGS",ulThisThreadID);}			break;
		case DISP_E_OVERFLOW:			{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_OVERFLOW",ulThisThreadID);}			break;
		case DISP_E_PARAMNOTFOUND:		{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_PARAMNOTFOUND",ulThisThreadID);}		break;
		case DISP_E_TYPEMISMATCH:		{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_TYPEMISMATCH",ulThisThreadID);}		break;
		case DISP_E_UNKNOWNINTERFACE:	{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_UNKNOWNINTERFACE",ulThisThreadID);}	break;
		case DISP_E_UNKNOWNLCID:		{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_UNKNOWNLCID",ulThisThreadID);}			break;
		case DISP_E_PARAMNOTOPTIONAL:	{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, DISP_E_PARAMNOTOPTIONAL",ulThisThreadID);}	break;
		default:						{sprintf(szLogBuffer,"Thread %d: Method Invoke returned an Error, Unknown error %d",ulThisThreadID, hResult);}
		}
		logMessage(1,szLogBuffer);


		// ---------------------------------------------------------------------------------------
		// PH, 2004-03-15, When failed then also ...
		// Free allocated buffers; IDispatch argument and the Input message and Release COM object
		// ---------------------------------------------------------------------------------------
		VariantClear(&vArgsTypeText[1]);
		::SysFreeString(bstrInput);

		return -2;
	}

	sprintf(szLogBuffer,"Thread %d: Method of com object did not return an error",ulThisThreadID);
	logMessage(4,szLogBuffer);

	//BS, 16022009: CoUninitialize() weer terug in processmesg
	// ---------------------------------------------------------
	// Closes the COM library on the current thread, 
	// unloads all DLLs loaded by the thread, 
	// frees any other resources that the thread maintains, and 
	// forces all RPC connections on the thread to close.
	// ---------------------------------------------------------
	CoUninitialize();

	// -------------------
	// Build reply message
	// -------------------
	if (vResult.vt == VT_BSTR)
	{

		sprintf(szLogBuffer,"Thread %d: Begin build reply message",ulThisThreadID);
		logMessage(4,szLogBuffer);

		// ----------------------------------------------------------------------------------
		// Calculated length of the string parameter returned by the method of the COM object
		// ----------------------------------------------------------------------------------
		OleBufLen					= SysStringLen(vResult.bstrVal);			/* A variant, in our case vResult, exists of 2 fields; vt and bstrVal*/			
		
		// -----------------------------------------------------
		// Alloc the buffer for return message + null terminator
		// -----------------------------------------------------	
		pszTempBuffer				= new char[OleBufLen + 1];	
		
		// ---------------------------------------------------------
		// Copy the buffer to pszTempBuffer WITH the 0 terminator
		// You can verify the copy with the \0 terminator. Length is OleBufLen + 1
		// A few statements futher the terminator is still placed to be absolutely
		// certain that it is done correctly
		// ---------------------------------------------------------


		sprintf(szLogBuffer,"Thread %d: Begin conversion widechartomultibyte",ulThisThreadID);
		logMessage(4,szLogBuffer);

		iResult = WideCharToMultiByte(CP_ACP,0,vResult.bstrVal,OleBufLen + 1,
										pszTempBuffer,OleBufLen + 1,NULL,NULL);
		
		if ( iResult == 0)
		{
			// if the result code is zero '0' an error occurred in the above function call
			DWORD dw = GetLastError();
			sprintf(szLogBuffer,"Thread %d: buffer conversion unicode to multcode failed code = %u Application will exit\n",ulThisThreadID,dw);
			logMessage(1,szLogBuffer);

			exit(-2);
		}


		sprintf(szLogBuffer,"Thread %d: widechartomultibyte did not return an error",ulThisThreadID);
		logMessage(4,szLogBuffer);

		// -------------------------
		// Place the null terminator
		// -------------------------
		pszTempBuffer[OleBufLen]	= '\0';	
		
		// -------------------------------------------------------------------------------
		// Release memory from output buffer/return buffer of the method of the COM object
		// -------------------------------------------------------------------------------
		VariantClear(&vResult);													

		// ----------------------------
		// Write reply message to queue
		// ----------------------------

		// PH, 21-01-2004, added
		sprintf(szLogBuffer,"Thread %d: put Reply Message to Output Queue",ulThisThreadID);
		logMessage(3,szLogBuffer);

		if(! g_pMq->PutMessage(	pszTempBuffer,
								g_pMq->GetOutputQ(),
								RFH2,
								mqOutputMessageDescriptor))
		{
			sprintf(szLogBuffer,"Thread %d: put Failed. Application will continue\n",ulThisThreadID);
			logMessage(1,szLogBuffer);
		}

		// -------------------------
		// Free the temporary buffer
		// -------------------------
		if (pszTempBuffer != NULL) 
		{
			delete [] pszTempBuffer;			
		}
	}

	// ------------------------------------------
	// Log to BIMon Queue (Snapshot, statistics)
	// ------------------------------------------

	// ---------------------------------------------------
	// set the "clock end marking" for statistical logging
	// ---------------------------------------------------
	tFinish = clock();																
	g_pMq->LOGGING.dElapsedMsgTime = (double)(tFinish - tStart) / CLOCKS_PER_SEC;   

	// ---------------------------
	// Construct message for BIMon
	// ---------------------------
	pszLogBuffer = g_pMq->ConstructStatBuffer();

	// --------------------------
	// Put message on BIMon queue
	// --------------------------

	// PH, 21-01-2004, added
	sprintf(szLogBuffer,"Thread %d: snapshot Message to BIMon Queue (statistical queue)",ulThisThreadID);
	logMessage(3,szLogBuffer);

	if(! g_pMq->PutMessage(	pszLogBuffer,
							g_pMq->GetStatQ(),
							DEFAULT,
							mqOutputMessageDescriptor))
	{
		// Log  (PH, 12-11-2003, changed, sprintf statement added and second parameter of LogMessage changed from "Put .." to szLogBuffer.
		sprintf(szLogBuffer,"Thread %d: put Failed. Check the ini-Configuration. Application will exit\n",ulThisThreadID);
		logMessage(1,szLogBuffer);

		exit(-2);
	}

	sprintf(szLogBuffer,"Thread %d: ProcessMsg: Free allocated memory of Log Buffer",ulThisThreadID);
	logMessage(4,szLogBuffer);

	// -----------------------------------
	// Free allocated memory of log buffer
	// -----------------------------------
	if (pszLogBuffer != NULL) 
	{
		delete [] pszLogBuffer;
	}

	sprintf(szLogBuffer,"Thread %d: ProcessMsg: Free allocated buffers of IDispatch argument",ulThisThreadID);
	logMessage(4,szLogBuffer);

	// ----------------------------------------------------------------
	// Free allocated buffers; IDispatch argument and the Input message
	// ----------------------------------------------------------------
	VariantClear(&vArgsTypeText[1]);

	sprintf(szLogBuffer,"Thread %d: ProcessMsg: Free allocated buffers of the Input message",ulThisThreadID);
	logMessage(4,szLogBuffer);

	::SysFreeString(bstrInput);

	// ---------------------
	// Terminate this thread
	// ---------------------

	sprintf(szLogBuffer,"Thread %d: ProcessMsg: Leave ProcessMsg function",ulThisThreadID);
	logMessage(4,szLogBuffer);

	return 0;
}

is it possible to convert speech to text.

Fri, 27 Nov 2009 10:26:20 Z

hi every body,

in my application convert voice to text is required,

but i am getting to text to speech tools only and these tools working properly.

but my work is if any person record voice is "hi how are you" then it is automatically displayed in text box(or)edit box "hi how are you"

and one more thing is my application developed in vc++6.0,

please help me ,
thanks in advance............

WIN32_LEAN_AND_MEAN

Tue, 24 Nov 2009 02:33:55 Z

what is this and how can i get rid of it. it is in the file stdafx.h when I start a win32 project.

A young neophyte programmer

Microsoft Visual C++ 2008 Redistributable Package (x86)

Wed, 26 Mar 2008 11:17:38 Z

i would like to ask for help..

i got Microsoft Visual C++ 2005 Redistributable Package (x86) installed in my laptop, but i would like to

upgrade it to Microsoft Visual C++ 2008 Redistributable Package (x86).

so my question is, do i have to uninstall Microsoft Visual C++ 2005 Redistributable Package (x86), before install Microsoft Visual C++ 2008 Redistributable Package (x86)?

please help me and email me at p3t3r5229@yahoo.co.uk

thank you for your kind help.

Open-With menu items for given file extension

Sat, 28 Nov 2009 00:18:57 Z

Hi,
I need the list of executables' paths registered to appear in open-with context menu for particular extensions.

I suppose that there is no managed API for that, so I might see a native approach, and convert that to managed version with pInvoke if possible...

//pseudo code:
String[] GetPathsOfRegisteredPrograms(String extension)
{
// how to get the list... ?
}

example usage:
String[] executablePaths = GetPathsOfRegisteredPrograms(".jpg");

//should return list:
c:\windows\PhotoAndFaxViewer.exe
c:\windows\Notepad.exe
c:\Program Files\Photoshop\Ps.exe
..and so on...

Thanks,
Michal

Hmmm, started VS Starting, what are we doing wrong?

Fri, 27 Nov 2009 22:49:51 Z

My coworker and I are building a windows service that scans an FTP folder for specific files, and then loads the data into SQL server when new files appear. The service starts up and runs correctly (in the sense that it does what it supposed to do) but when you look in the control panel and open up "services" it says "starting . . ." and never actually says it's started.

Anyone have any suggestions? Is there some simple thing we're supposed to do to let the operating system know that the service has successfully started?

CMFCToolBar. How to add control?

Fri, 27 Nov 2009 16:04:31 Z

I have trouble without ends with the new CMFCToolBar. I try to add some controls to my toolbar and unsuccessfully! I even tried to adapt the ToolBarTimeDatePicker example, it doesn't really work actually!
MY CASE: I have no Menu, only ToolBar, and I do not need Customize Option for ToolBar. So I excluded it from the project. So what I need is a simple toolbar with edit in it. To make it as it seems I need to add new Button and some code in OnToolbarReset(WPARAM wp,LPARAM) function. Which I did:

            CMFCToolBarEditBoxButton myEdtButton (ID_TEST,
                GetCmdMgr ()->GetCmdImage (ID_TEST,FALSE),WS_TABSTOP|ES_LEFT|ES_UPPERCASE|WS_BORDER);
            m_wndToolBar.ReplaceButton (ID_TEST, myEdtButton );

Please help me. What can I do, just to see the EDIT CONTROL? I am desparately struggling with it without success.

Thanks in advance.

Abstract class instantiation

Fri, 27 Nov 2009 07:02:27 Z

In VS2008 I faced with very interesting problem.
Here is the source code:

struct IMyClass
{
public:
int field;
IMyClass(int a): field(a) {}
virtual int foo() const = 0;
};

int func_foo(const IMyClass &obj)
{
return obj.foo();
}

int main(void)
{
func_foo(1);
return 0;
}

when function func_foo is called in main, number 1 is implicitly casted to IMyClass by creating an object of the IMyClass type. In fact, in func_foo I have an ordinary object of an abstract class :) And operator sizeof(obj) returns 4, but sizeof(IMyClass) returns 8.

I compiled this code with warning level 4, and there were no messages.

Of course, in runtime this program fails at line obj.foo() with exception R6025 "pure virtual function call", The most amazing is that an object of an abstract class was created. :)

WinSxS mfc80.dll won't load WinSxS msvcr80.dll

Tue, 24 Nov 2009 12:49:35 Z

I am trying to fix a client's problem with one of my company's products. One of the dll's won't register there, but works here (isn't always the case). I had them do a dependency walker check and it states that msvcr80.dll cannot be found under the WinSxS mfc80.dll branch. However the very next branch has the WinSxS msvcr80.dll loading fine.

winsxs\*4053*\mfc80.dll
- msvcr80.dll (dependency not found)
- (other dlls)
winsxs\*4053*\msvcr80.dll (this branch has no errors)

I don't understand why it produces a dependency not found when in fact it has it in another branch.

Any suggestions?

John Miller

Is it possible to pull through _ConnectionPtr clean hands?

Thu, 26 Nov 2009 14:58:39 Z

OLE DB Services =- 1
Is it possible to pull through _ConnectionPtr clean hands?

child process termination info without wait time

Sun, 15 Nov 2009 11:57:40 Z

hi,

I am creating one application that receive command string and start the different application using createProcess().

So, when the child process terminates, i need to intimate parent process about it.

Actually,. i used WaitForSingleObject().

but, one problem is the parent application strucked(paused) untill child application terminated.

In my program, I continuously receive command string and start different application.

So, I can't wait each child process to terminate.

I got one suggestion to use thread for waiting child process termination.

But, that also problem, because i need to create thread for each child process and declare child process information structure globally for each createProcess().

my code is,
[code]

// while loop to check continuous socket connection
    while (1)
    {
        int str1,str2;
        char *cmdName = NULL;
        printf("while begin \n");
        aSock = INVALID_SOCKET;
        asSize = sizeof(serverSock);
        printf("a1\n");
        while(aSock == INVALID_SOCKET)
        {
            printf("while aSock= %d\n",aSock);
            aSock = accept(sock, (struct sockaddr *)&serverSock,(int *) &asSize);
            printf(" aSock = %d\n",aSock);
        }
        printf("aSock= %d\n",aSock);
        printf("a3\n");
#if 0
        while (aSock == SOCKET_ERROR)
        {
            //aSock = accept(sock,(struct sockaddr *)&serverSock, &asSize);
                aSock = accept(sock, NULL, NULL);
        }
#endif
        if (aSock == SOCKET_ERROR)
        {
            printf("a4\n");
            printf("sockserver: accept() error!. \n");
        }
    // When SAS server connection accepted, change the temp socket (aSock) connection to original one (sock)
    printf("a5\n");
    printf("sockserver: SAS Connected!\n");
    printf("test 0\n");
    //sock = aSock;
    printf("test 1\n");
//**************************************
    memset(dataBuffer, '\0', sizeof(dataBuffer));
    byteRecv = recv(aSock,dataBuffer,sizeof(dataBuffer),0);
    printf(" String Received ============= %s \n", dataBuffer);
    str1 = strlen(dataBuffer);
    printf("String length ============= %d \n", str1);
    str1 = strlen(dataBuffer);
    dataBuffer[byteRecv] = '\0';

    printf(" String Received after   ****============= %s \n", dataBuffer);
    str2 = strlen(dataBuffer);
    //printf("String length after ============= %d \n", str2);
    if(dataBuffer == NULL || strlen(dataBuffer) == 0 )
    {
        printf("String is null \n");
    }

    printf("test 1b\n");
    if(byteRecv == SOCKET_ERROR)
    {
        printf("test 1c\n");
        printf("Data sent by SAS server is not received!. \n");

    }
    else
    {
       printf("test 1d\n");
       printf("sockserver: Received data is: %s \n", dataBuffer);
       printf("sockserver: Bytes received: %ld.\n", byteRecv);
    //   closesocket(aSock);

    }
    cmdName = strtok_s( dataBuffer, seps, &next_token);
    printf(" cmdName : %s \n", cmdName);

    if (strcmp(cmdName,"cmdStartApplication") == 0)
    {
        printf("test 1 \n");
            int i = 0;
//            int k;
            int eindex;
            char *event_index = NULL; // ATSC event index
            char *arg = NULL;
//            wchar_t *myargv[APPL_MAX_ARGS];
            //wchar_t *myargv;
            wchar_t *exeName;
            //char *exeName;
            DWORD exitCode;
            int pExitValue;
            int waitid;

            STARTUPINFO si;
            PROCESS_INFORMATION pi;
            int pid,cpid;
            //wchar_t *exeName;
            ZeroMemory( &si, sizeof(si) ); // windows equivalent to memset
            si.cb = sizeof(si);
            ZeroMemory( &pi, sizeof(pi) );
            event_index = strtok_s (NULL,seps,&next_token);
            printf("test 3 \n");
            //exeName = strtok_s (NULL,seps,&next_token);
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            exeName = _tcsdup(TEXT("\"c:\\WINDOWS\\notepad.exe\""));
            //exeName = "c:\\WINDOWS\\notepad.exe";
            //exeName = _tcsdup(TEXT("\"D:\\mypgms\\Daemon_pgms\\sockclient\\Debug\\sockclient\""));
            //exeName =(wchar_t *) "notepad";
            printf("test 4 \n");
            /*for(k=0; k<APPL_MAX_ARGS; k++)
            {
                myargv[k] = (wchar_t *)NULL;
            } */

            // Start the child process.
            //*********************************************************************************
    aThread = CreateThread(
                     NULL,       // default security attributes
                     0,          // default stack size
                     (LPTHREAD_START_ROUTINE) waitpid,
                     NULL,       // no thread function arguments
                     0,          // default creation flags
                     &ThreadID); // receive thread identifier

        if( aThread == NULL )
        {
            printf("CreateThread error: %d\n", GetLastError());
            return;
        }
//********************************************************************************
            if(( cpid=CreateProcess( NULL,   // No module name (use command line)
                (LPWSTR)exeName,        // Command line
                NULL,           // Process handle not inheritable
                NULL,           // Thread handle not inheritable
                FALSE,          // Set handle inheritance to FALSE
                0,              // No creation flags
                NULL,           // Use parent's environment block
                NULL,           // Use parent's starting directory
                &si,            // Pointer to STARTUPINFO structure
                &pi )           // Pointer to PROCESS_INFORMATION structure
            ) != NULL)
            {
                pid = pi.dwProcessId;
                printf( "VMService: CreateProcess Successed for cmdStartApllication, CPID is: %d.\n", cpid );
                printf("System child process ID: %d \n", pid);
                eindex = atoi(event_index);
                addNode(pid, eindex, aSock);
                printf("*********** After add NODE ******************\n");
                //closesocket(aSock);    /* No need to close the socket. */
                //return 0;
            }
            else
            {
                printf( "VMService: CreateProcess failed (%d).\n", GetLastError() );
                //return -1;
            }

            /* Wait until child process exits. */
            printf(" WaitForSingleObject() in cmdStartAppl called ... \n");
            waitid = WaitForSingleObject( pi.hProcess, INFINITE );
            sigchld_handler (pid);
            switch (waitid) {
                        case WAIT_FAILED:
                            sigchld_handler (pid);
                            printf("WAIT_FAILED");
                            break;
                        case WAIT_ABANDONED:
                            sigchld_handler (pid);
                            printf("WAIT_ABANDONED");
                            break;
                        case WAIT_OBJECT_0:
                            printf("WAIT_OBJECT_0");
                            break;
                        case WAIT_TIMEOUT:
                            sigchld_handler (pid);
                            printf("WAIT_TIMEOUT");
                            break;
                        default:
                            printf("...");
                            break;
                        }

                pExitValue = GetExitCodeProcess(pi.hProcess, &exitCode);
                if (pExitValue != 0)
                {
                    /*switch(exitCode)
                    {
                    case STILL_ACTIVE: printf("Process is still active\n");
                    break;
                    default: printf("Exit code = %d\n", exitCode);
                    break;
                    } */

                    if (exitCode == STILL_ACTIVE)
                    {
                        printf("startCmdApplication is still running \n");
                    }
                    else
                    {
                        printf("startCmdApplication is exits \n");
                    }
                }
                else{
                    printf("GetExitCodeProcess() failed with erroe code: %d \n", GetLastError() );
                }

            /* Close process and thread handles. */
            CloseHandle( pi.hProcess );
            CloseHandle( pi.hThread );
            continue;
    }
    else
    {
        printf("cmdStartApllication failed. \n");
        //continue;
    }


    //cmdStartServer
    if (strcmp(cmdName,"cmdStartServer") == 0)
    {
        printf("test 21 \n");
            int i = 0;
//            int k;
            int eindex;
            char *event_index = NULL; // ATSC event index
            char *arg = NULL;
            //wchar_t *myargv[APPL_MAX_ARGS];
            //wchar_t *myargv;
            wchar_t *exeName;
            //char *exeName;

            STARTUPINFO si;
            PROCESS_INFORMATION pi;
            int pid,cpid;
            //wchar_t *exeName;
            ZeroMemory( &si, sizeof(si) ); // windows equivalent to memset
            si.cb = sizeof(si);
            ZeroMemory( &pi, sizeof(pi) );
            event_index = strtok_s (NULL,seps,&next_token);
            printf("test 3 \n");
    //        exeName =strtok_s (NULL,seps,&next_token);
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            exeName = _tcsdup(TEXT("\"c:\\WINDOWS\\notepad\""));
            //exeName = _tcsdup(TEXT("\"D:\\mypgms\\Daemon_pgms\\sockclient\\Debug\\sockclient\""));
        //    exeName =(wchar_t *) "notepad";
                printf("test 4 \n");
            /*for(k=0; k<APPL_MAX_ARGS; k++)
            {
                myargv[k] = (wchar_t *)NULL;
            } */

            // Start the child process.
            if(( cpid=CreateProcess( NULL,   // No module name (use command line)
                (LPWSTR)exeName,        // Command line
                NULL,           // Process handle not inheritable
                NULL,           // Thread handle not inheritable
                FALSE,          // Set handle inheritance to FALSE
                0,              // No creation flags
                NULL,           // Use parent's environment block
                NULL,           // Use parent's starting directory
                &si,            // Pointer to STARTUPINFO structure
                &pi )           // Pointer to PROCESS_INFORMATION structure
            ) != NULL)
            {

                pid = pi.dwProcessId;
                printf( "VMService: CreateProcess Successed for cmdStartServer, CPID is: %d.\n", cpid );
                printf("System process ID: %d \n", pid);
                eindex = atoi(event_index);
                addNode(pid, eindex, aSock);
                //closesocket(aSock);    /* No need to close the socket. */
                //return 0;
            }
            else
            {
                printf( "VMService: CreateProcess failed (%d).\n", GetLastError() );
                //return -1;
            }

            /* Wait until child process exits. */
            // WaitForSingleObject( pi.hProcess, INFINITE );

            /* Close process and thread handles. */
            CloseHandle( pi.hProcess );
            CloseHandle( pi.hThread );
             continue;
    }
    else
    {
        printf("cmdStartApllication failed. \n");
        //continue;
    }

continue;

    printf("while end \n");
    } // end of while()

[\code]

so any suggestion on getting child process termination indication without wait time ( that hangs the parent process.

thank you.

build failed

Fri, 27 Nov 2009 11:13:17 Z

I am building my project at the end of build process, it shows:

========== Build: 122 succeeded, 1 failed, 0 up-to-date, 14 skipped ==========

there are 3 errors showing on the output of Debug Panel.

This three erors I can identify.

55>Error: C:\Documents and Settings\guest1\Desktop\svn ref\libs\sounds\freeswitch-sounds-en-us-callie-8000-.tar.gz is not supported archive
58>Project : error PRJ0019: A tool returned an error code from "Performing Post-Build Event..."
58>8khz - 1 error(s), 0 warning(s)

Serial Port, events and timeouts

Fri, 27 Nov 2009 13:14:47 Z

Hello,

I have been developping an application which will connect to a device using RS232.

When the device sends a request, my application must respond (client/server).

Initially, I had a thread which was always waiting for characters to appear. If they did not appear within the timeout, I flagged an error variable. As the client sends messages periodically, I could identify when the connection was lost. This was possible, because I was always waiting for characters to arrive.

After reading some stuff and talking with some colleagues, I was advised to drop the thread and use events instead. When a message arrives, the event is raised and executes eveything I need, which is pretty nice, leaving all the threading stuff behind. But now, there's one thing I cannot do, which is to identify when the connection is lost.

As I do not have a thread waiting for characters anymore, I cannot detect a timeout situation and I think I would need to create a thread just to do identify an excessive amount of time between ReadEvents detected. Am I right?

Is there any other way how to do this?

Best regards

Carlos

OnInitialUpdate Issue

Tue, 24 Nov 2009 10:29:11 Z

Hello

I been having a problem that is simple, but is a blocking issue. When I make a MFC/C++ application, OnInitialUpdate calls for a while but randomly stops working after a few minutes to hours of development.

The entry function where the problem occurs is in the *app class

// Dispatch commands specified on the command line. Will return FALSE if


// app was launched with /RegServer, /Register, /Unregserver or /Unregister.


if (!ProcessShellCommand(cmdInfo))


return FALSE;

This began happening ever since I've been using VS2008.  At first I had the trial version but I uninstalled it and installed my full edition but unfortunatly, the issue still persists.  I am running this on an XP.  I have tried this on my Windows7 Beta and it seems to behave properly. But are there any users who can make a MFC application with VS2008 on XP and not experience this issue?  Any advice and ideas are more than welcomed as well.

Help is Greatly appreciated.

Thanks

Debug Assertion Failure in CTreeCtrl

Fri, 27 Nov 2009 12:10:12 Z

hi,
I have a dialog(variable name is b1) in which I have created a TreeCtrl(m_bandtree) using the toolbox. I have also created a variable for the same using the class wizard. On a particular condition in my Dialog Based applicatoin this Dialog(b1) is opened. Now, I want to add 4 Tree Items into its TreeCtrl structure. I am unable to do the same. Please help me out.
This is the code snippet.

if(condition)
MultiBank *b1=new MultiBank;
for(int i=0;i<4;i++)

        {
           // AfxMessageBox("Hi");
            band_tree_name="Band"+i;
            tvInsert.hParent=NULL;
            tvInsert.hInsertAfter=TVI_LAST;
            tvInsert.item.hItem=NULL;
            tvInsert.item.iImage=0;
            tvInsert.item.pszText=const_cast<char*>(band_tree_name.operator LPCTSTR());
            b1->m_bandtree.InsertItem(&tvInsert);//line where I am getting Debug Assertion Failed Error

        }

I have also referred to "http://social.msdn.microsoft.com/forums/en-US/vcgeneral/thread/fdf5b6ba-5d0d-4cb3-a924-5cdc917ee895/" but it has been of any help to me.

Pls Advice

urldownloadtofile hangs in Vista but not in XP when internet connection is down

Fri, 27 Nov 2009 13:34:42 Z

Hi,
I'm using URLDownloadToFile to download an upgrade for an application inside that application.
I'm using IBindStatusCallback to get status updates with the OnProgress method.
When the internet connection is lost, I warn the user and tell her to try it later.
However, this works in XP but in Vista, it does not.
In Vista, if you remove the ethernet cable, URLDownloadToFile seems to hang, does not return, and OnProgress is not called.
Sometimes if you reconnect the cable, it can take up the download where it was left off, although this does not happen always.
It seems in Windows 7, it is working properly. After you remove the cable, the URLDownloadToFile seems to hang, but when you
put it back on, OnProgress knows that binding has stopped. Is there a bug with URLDownloadToFile in Vista?
This is also reported here:
http://msdn.microsoft.com/en-us/library/ms775123(VS.85).aspx
(a comment by a user:

Seems to hang when used under Vista and network connection is lost

Added by:BarnyJuno)
Thanks and regards,

pau