在C＃中替換Information.RGB＃

Question

public static int DarkenColor1(int oleColor, float sngRatio) 
{ 
    int R= oleColor & 255; 
    int G= (int)(((long)oleColor & 65280L)/256L); 
    int B= (oleColor & 16711680)/65536;    
    return Information.RGB((int)(R/sngRatio), (int)(G/sngRatio), (int)(B/sngRatio));    
} 

如何在純C＃代碼中替換Information.RGB，這是VB.NET？我不喜歡using Microsoft.VisualBasic。

Answer 1

使用ColorTranslator.ToOle將指定的C＃顏色結構轉換爲OLE顏色。

public static int DarkenColor1(int oleColor, float sngRatio) 
{ 
    int R= oleColor & 255; 
    int G= (int)(((long)oleColor & 65280L)/256L); 
    int B= (oleColor & 16711680)/65536;    
    //return Information.RGB((int)(R/sngRatio), (int)(G/sngRatio), (int)(B/sngRatio)); 
    return ColorTranslator.ToOle(Color.FromArgb((int)(R/sngRatio), (int)(G/sngRatio), (int)(B/sngRatio));    
}