获取GDI对象的属性信息

　　可以调用GDIObject:: GetObject。这个函数将指定图表设备的消息写入到缓冲区。下例创建了几个有用的辅助函数。

//Determine if font is bold.

BOOL IsFontBold (const CFont&font)

{

LOGFONT stFont;

font.GetObject (sizeof (LOGFONT), &stFont);

return (stFont.lfBold)? TRUE: FALSE;

}

//Return the size of a bitmap.

CSize GetBitmapSize (const CBitmap&bitmap)

{

BITMAP stBitmap;

bitmap.GetObject (sizeof (BITMAP), &stBitmap);

return CSize (stBitmap.bmWidth, stBitmap. bmHeight);

}

//Create a pen with the same color as a brush.

BOOL CreatePenFromBrush (Cpen&pen, cost Cbrush&brush)

{

LOGBRUSH stBrush;

brush.Getobject (sizeof (LOGBRUSH), &stBrush);

return pen. Createpen (PS_SOLID, 0, stBrush.ibColor);

}