// This probably doesn't work.
HBITMAP hBitmap = (HBITMAP) bmp.GetHBITMAP();
HICON hIcon = MakeIconFromBitmap((HINSTANCE) wxGetInstance(), hBitmap);
// This probably doesn't work.
HBITMAP hBitmap = (HBITMAP) bmp.GetHBITMAP();
HICON hIcon = MakeIconFromBitmap((HINSTANCE) wxGetInstance(), hBitmap);