如何获取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)
}