BITMAP bmp; GetObject(hBmp, sizeof(bmp), &bmp); _cx = bmp.bmWidth; _cy = bmp.bmHeight;
_cx = 16; _cy = 16;
	PictureButton(HWND hwnd, HBITMAP hBmp, HBRUSH hbrush=GetSysColorBrush(COLOR_BTNFACE), bool flat=false)	 :	super(hwnd), _hIcon(0), _hBmp(hBmp), _hBrush(hbrush), _flat(flat)	{		BITMAP bmp;		GetObject(hBmp, sizeof(bmp), &bmp);		_cx = bmp.bmWidth;		_cy = bmp.bmHeight;	}