Programming Tips - How do I get the HWND handle for the main Window of my MFC program?

Date: 2008jun6
Updated: 2010feb4
Framework: MFC
Language: C/C++

Q.  How do I get the HWND handle for the main Window of my MFC program?

A.  First use AfxGetMainWnd() to get the CWnd class then
use GetSafeHwnd() on that as this function demonstrates:

// AfxGetMainWnd() is broken in Visual Studio 2005 so here's my own
inline CWnd *MyGetMainWnd()
{
	CWinApp		*app;

	if ((app = AfxGetApp()) == NULL) return NULL;
	return app->m_pMainWnd;
}

inline HWND GetMainHwnd()
{
	CWnd *	wnd;

	if ((wnd = MyGetMainWnd()) == NULL) return NULL;
	return wnd->GetSafeHwnd();
}