errors in source file

Question

Hello All,

 

      I have a header file which has some code as follows..

 

typedef void ( __stdcall *RAW_DATA_CALLBACK)( DWORD UserParam, DWORD dwdataType, BYTE* buf, DWORD len );

           this RAW_DATA_CALLBACK is used as one of the argument in the below function

 

DLL_API void __cdecl    KSRDCallback( HANDLE h, DWORD UserParam, RAW_DATA_CALLBACK fnStatusCallback );

 

I included this header file to my source file.I called the function as follows

KSRDCallback(hSDK, (DWORD)this, RAWCB);

 

RAWCB is implemented as follow

void WINAPI RAWCB(DWORD UserParam, DWORD dwdataType, BYTE* buf, DWORD len)

{

      Form1* pcDSD = (Form1*) UserParam;

      /*some code here*/

}

 

It gives the following errors as follows….

 

Error    1          error C3699: '*' : cannot use this indirection on type 'AStreamingTest::Form1'            e:\rnd\Astreamingtest\Astreamingtest\Form1.h          120     

Error    2          error C3699: '*' : cannot use this indirection on type 'AStreamingTest::Form1'            e:\rnd\Astreamingtest\Astreamingtest\Form1.h          120     

Error    3          error C2440: 'type cast' : cannot convert from 'DWORD' to 'AStreamingTest::Form1 ^'            e:\rnd\Astreamingtest\Astreamingtest\Form1.h          120     

Error    4          error C2440: 'type cast' : cannot convert from 'AStreamingTest::Form1 ^const ' to 'DWORD'            e:\rnd\Astreamingtest\Astreamingtest\Form1.h          139     

Error    5          error C3867: 'AStreamingTest::Form1::RAWCB': function call missing argument list; use '&AStreamingTest::Form1::RAWCB' to create a pointer to member            e:\rnd\Astreamingtest\Astreamingtest\Form1.h          139