#include
#define OUR_EXCEPTION 0xE0000001
LONG WINAPI OurUnhandledExceptionFilter(LPEXCEPTION_POINTERS lpExceptionData)
{
EXCEPTION_RECORD *ExceptionRecord = lpExceptionData->ExceptionRecord;
CONTEXT *ContextRecord = lpExceptionData->ContextRecord;
if (ExceptionRecord->ExceptionCode==OUR_EXCEPTION)
{
MessageBox( NULL, "Trapped raised exception", "Unhandled Exception Filter", MB_OK );
return EXCEPTION_EXECUTE_HANDLER;
}
else
return EXCEPTION_CONTINUE_SEARCH;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_COMMAND:
switch ( LOWORD( wParam ) )
{
case IDM_TEST:
{
char szBuffer[128];
HDC hDC = GetDC( hWnd );
// Set unhandled exception handler.
SetUnhandledExceptionFilter(OurUnhandledExceptionFilter);
// Raise exception try block.
try
{
wsprintf( szBuffer, "Raising OUR_EXCEPTION first time" );
MessageBox( hWnd, szBuffer, "Try Block", MB_OK );
RaiseException(OUR_EXCEPTION, 0, 0, NULL);
}
except( GetExceptionCode() == OUR_EXCEPTION )
{
wsprintf( szBuffer, "Trapped OUR_EXCEPTION in normal filter" );
MessageBox( hWnd, szBuffer, "Except Block", MB_OK );
}
// Raise exception again using unhandled exception filter.
try
{
wsprintf( szBuffer, "Raising OUR_EXCEPTION second time" );
MessageBox( hWnd, szBuffer, "Try Block", MB_OK );
RaiseException(OUR_EXCEPTION, 0, 0, NULL);
}
except (UnhandledExceptionFilter(GetExceptionInformation()))
{
wsprintf( szBuffer, "Execution of except block for OUR_EXCEPTION." );
MessageBox( hWnd, szBuffer, "Except Block", MB_OK );
}
ReleaseDC(hWnd, hDC);
}
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return (DefWindowProc(hWnd, uMsg, wParam, lParam));
}
return (NULL);
}
