Pegar URL C++

Question

instalei agora o visual C++ 2008, preciso saber como pegar a URL dos Browser que estao aberto, tipo Internet Explorer e Firefox ? Como fazer isso em C++ ? Utilizando Internet Explorer DOM ? 

Answer 1

Localize quais janelas dos browsers você quer interceptar com a API FindWindow ou FindWindowEx.
Nesta API você passará num dos argumentos, o título da Janela. Se estiver tudo certo, receberá o HWND. Com este valor você poderá enumerar recursivamente as janelas filhas com a API EnumChildWindows até achar o HWND do controle desejado.

No caso do IE, a barra de endereço é um Edit, quando você obter seu HWND é só chamar a API GetWindowText. Ela preencherá um buffer com o endereço do browser.

Para entender melhor estes passos, utilize o Spy++ que encontra-se no menu Visual Studio Tools.

---

Fabio Galuppo

Answer 2

#include <windows.h>

#include <tchar.h>

struct FindWindowByClassNameArgs

{

const TCHAR* className;

HWND hwndFounded;

};

struct FindWindowByCaptionArgs

{

const TCHAR* caption;

HWND hwndFounded;

};

BOOL CALLBACK EnumChildByClassName(HWND hwndControl, LPARAM lParam)

{

TCHAR buffer[256];

GetClassName( hwndControl, buffer, sizeof(buffer) / sizeof(buffer[0]) );


FindWindowByClassNameArgs* args = (FindWindowByClassNameArgs*) lParam;

if( _tcsstr( buffer , args->className ) )

{

args->hwndFounded = hwndControl;

return FALSE;

}

return TRUE;

}

BOOL CALLBACK EnumChildByCaption(HWND hwndControl, LPARAM lParam)

{

TCHAR buffer[256];

GetWindowText( hwndControl, buffer, sizeof(buffer) / sizeof(buffer[0]) );


FindWindowByCaptionArgs* args = (FindWindowByCaptionArgs*) lParam;

if( _tcsstr( buffer , args->caption ) )

{

args->hwndFounded = hwndControl;

return FALSE;

}

return TRUE;

}

HWND FindWindowByClassName( HWND hwndChild, const TCHAR* className )

{

FindWindowByClassNameArgs args = { className, NULL };

EnumChildWindows( hwndChild, EnumChildByClassName, (LPARAM) &args );

return args.hwndFounded;

}

HWND FindWindowByCaption( HWND hwndChild, const TCHAR* caption )

{

FindWindowByCaptionArgs args = { caption, NULL };

EnumChildWindows( hwndChild, EnumChildByCaption, (LPARAM) &args );

return args.hwndFounded;

}

BOOL CALLBACK EnumVS2008DocumentationProc(HWND hwndChild, LPARAM lParam)

{

//Procura pelo Window Caption da janela

TCHAR buffer[256];

GetWindowText( hwndChild, buffer, sizeof(buffer) / sizeof(buffer[0]) );


if( _tcsstr( buffer ,_T("Microsoft Visual Studio 2008 Documentation") ) )

{

HWND h1 = FindWindowByClassName( hwndChild, _T("MDIClient") );

HWND h2 = FindWindowByClassName( h1, _T("EzMdiContainer") );

HWND h3 = FindWindowByClassName( h2, _T("GenericPane") );

HWND h4 = FindWindowByCaption( h3, _T("MsoDockTop") );

HWND h5 = FindWindowByClassName( h4, _T("MsoCommandBar") );

HWND h6 = FindWindowByClassName( h5, _T("Edit") );

LRESULT lineLength = SendMessage( h6, EM_LINELENGTH, 0, 0 );

TCHAR* url = new TCHAR[lineLength + 1];

url[0] = (int) lineLength; url[lineLength] = _T('\0');

LRESULT result = SendMessage( h6, EM_GETLINE, 0, (LPARAM) url );

_tprintf( _T("%s\n"), url );

delete url;

}


return TRUE;

}

BOOL CALLBACK EnumIE8Proc(HWND hwndChild, LPARAM lParam)

{

//Procura pelo Class Name

TCHAR buffer[256];

GetClassName( hwndChild, buffer, sizeof(buffer) / sizeof(buffer[0]) );


if( _tcsstr( buffer ,_T("IEFrame") ) )

{

HWND h1 = FindWindowByClassName( hwndChild, _T("WorkerW") );

HWND h2 = FindWindowByClassName( h1, _T("ReBarWindow32") );

HWND h3 = FindWindowByClassName( h2, _T("Address Band Root") );

HWND h4 = FindWindowByClassName( h3, _T("Edit") );

LRESULT lineLength = SendMessage( h4, EM_LINELENGTH, 0, 0 );

TCHAR* url = new TCHAR[lineLength + 1];

url[0] = (int) lineLength; url[lineLength] = _T('\0');

LRESULT result = SendMessage( h4, EM_GETLINE, 0, (LPARAM) url );

_tprintf( _T("%s\n"), url );

delete url;

}


return TRUE;

}

int main()

{

//EnumChildWindows(GetDesktopWindow(), EnumVS2008DocumentationProc, NULL);

EnumChildWindows(GetDesktopWindow(), EnumIE8Proc, NULL);

return 0;

}

Answer 3

Código enviado por : Fabio Galuppo

#include <windows.h>

#include <tchar.h>

struct FindWindowByClassNameArgs

{

const TCHAR* className;

HWND hwndFounded;

};

struct FindWindowByCaptionArgs

{

const TCHAR* caption;

HWND hwndFounded;

};

BOOL CALLBACK EnumChildByClassName(HWND hwndControl, LPARAM lParam)

{

TCHAR buffer[256];

GetClassName( hwndControl, buffer, sizeof(buffer) / sizeof(buffer[0]) );


FindWindowByClassNameArgs* args = (FindWindowByClassNameArgs*) lParam;

if( _tcsstr( buffer , args->className ) )

{

args->hwndFounded = hwndControl;

return FALSE;

}

return TRUE;

}

BOOL CALLBACK EnumChildByCaption(HWND hwndControl, LPARAM lParam)

{

TCHAR buffer[256];

GetWindowText( hwndControl, buffer, sizeof(buffer) / sizeof(buffer[0]) );


FindWindowByCaptionArgs* args = (FindWindowByCaptionArgs*) lParam;

if( _tcsstr( buffer , args->caption ) )

{

args->hwndFounded = hwndControl;

return FALSE;

}

return TRUE;

}

HWND FindWindowByClassName( HWND hwndChild, const TCHAR* className )

{

FindWindowByClassNameArgs args = { className, NULL };

EnumChildWindows( hwndChild, EnumChildByClassName, (LPARAM) &args );

return args.hwndFounded;

}

HWND FindWindowByCaption( HWND hwndChild, const TCHAR* caption )

{

FindWindowByCaptionArgs args = { caption, NULL };

EnumChildWindows( hwndChild, EnumChildByCaption, (LPARAM) &args );

return args.hwndFounded;

}

BOOL CALLBACK EnumVS2008DocumentationProc(HWND hwndChild, LPARAM lParam)

{

//Procura pelo Window Caption da janela

TCHAR buffer[256];

GetWindowText( hwndChild, buffer, sizeof(buffer) / sizeof(buffer[0]) );


if( _tcsstr( buffer ,_T("Microsoft Visual Studio 2008 Documentation") ) )

{

HWND h1 = FindWindowByClassName( hwndChild, _T("MDIClient") );

HWND h2 = FindWindowByClassName( h1, _T("EzMdiContainer") );

HWND h3 = FindWindowByClassName( h2, _T("GenericPane") );

HWND h4 = FindWindowByCaption( h3, _T("MsoDockTop") );

HWND h5 = FindWindowByClassName( h4, _T("MsoCommandBar") );

HWND h6 = FindWindowByClassName( h5, _T("Edit") );

LRESULT lineLength = SendMessage( h6, EM_LINELENGTH, 0, 0 );

TCHAR* url = new TCHAR[lineLength + 1];

url[0] = (int) lineLength; url[lineLength] = _T('\0');

LRESULT result = SendMessage( h6, EM_GETLINE, 0, (LPARAM) url );

_tprintf( _T("%s\n"), url );

delete url;

}


return TRUE;

}

BOOL CALLBACK EnumIE8Proc(HWND hwndChild, LPARAM lParam)

{

//Procura pelo Class Name

TCHAR buffer[256];

GetClassName( hwndChild, buffer, sizeof(buffer) / sizeof(buffer[0]) );


if( _tcsstr( buffer ,_T("IEFrame") ) )

{

HWND h1 = FindWindowByClassName( hwndChild, _T("WorkerW") );

HWND h2 = FindWindowByClassName( h1, _T("ReBarWindow32") );

HWND h3 = FindWindowByClassName( h2, _T("Address Band Root") );

HWND h4 = FindWindowByClassName( h3, _T("Edit") );

LRESULT lineLength = SendMessage( h4, EM_LINELENGTH, 0, 0 );

TCHAR* url = new TCHAR[lineLength + 1];

url[0] = (int) lineLength; url[lineLength] = _T('\0');

LRESULT result = SendMessage( h4, EM_GETLINE, 0, (LPARAM) url );

_tprintf( _T("%s\n"), url );

delete url;

}


return TRUE;

}

int main()

{

//EnumChildWindows(GetDesktopWindow(), EnumVS2008DocumentationProc, NULL);

EnumChildWindows(GetDesktopWindow(), EnumIE8Proc, NULL);

return 0;

}

Answer 4

Observações:

1. Isto é só uma prova de conceito, e tem MUITO que evoluir -  tratamento de handles nulos não tem, entre outros;

2. Mistura C com C++, não é um ótimo design de código, mas faz o trabalho - e deve dar uma direção para vc.

---

Fabio Galuppo