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c - How do I determine the internal HWND used by COM in my current process?

I want to Post messages directly to the HWND that's owned by COM in my process. How do I get the HWND that COM is using in single-threaded-apartment mode?

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by (71.8m points)

Try this:

HWND prevWindow = NULL;
HWND hwnd;
for ( ;; )
{
    hwnd = FindWindowEx( HWND_MESSAGE, prevWindow, L"OleMainThreadWndClass", NULL );
    if ( !hwnd )
        break;

    if ( GetWindowThreadProcessId( hwnd, NULL ) == GetCurrentThreadId() )
        break;

    prevWindow = hwnd;


    WCHAR className[255];
    *className = 0;
    ::GetClassName( hwnd, className, 255 );
}

Let me know if it works.


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