本文整理汇总了C#中Graphics.GetHdc方法的典型用法代码示例。如果您正苦于以下问题：C# Graphics.GetHdc方法的具体用法？C# Graphics.GetHdc怎么用？C# Graphics.GetHdc使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Graphics的用法示例。
在下文中一共展示了Graphics.GetHdc方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Run
public static bool Run(Graphics graphPort, Bitmap dstBitmap, Bitmap srcBitmap, Rectangle frame, int iterations)
{
IntPtr realDC = graphPort.GetHdc();
//IntPtr hDCDst = Graphics.FromImage(dstBitmap).GetHdc(true);
IntPtr hDCDst = Graphics.FromImage(dstBitmap).GetHdc();
int XDst = 0;
int YDst = 0;
int nDstW = dstBitmap.Width;
int nDstH = dstBitmap.Height;
//IntPtr hDCSrc = Graphics.FromImage(srcBitmap).GetHdc(true);
IntPtr hDCSrc = Graphics.FromImage(srcBitmap).GetHdc();
int XSrc = 0;
int YSrc = 0;
int nSrcW = srcBitmap.Width;
int nSrcH = srcBitmap.Height;
//bool success = StretchBlt(realDC, frame.Left, frame.Top, frame.Width, frame.Height, hDCSrc, 0, 0, nDstW, nDstH, SRCCOPY);
for (int i = iterations; i >= 1; i--)
{
BLENDFUNCTION blender = new BLENDFUNCTION(AC_SRC_OVER, 0, (byte)(255 / i), 0);
if (!AlphaBlend(hDCDst, XDst, YDst, nDstW, nDstH,
hDCSrc, XSrc, YSrc, nSrcW, nSrcH, blender))
return false;
bool success = StretchBlt(realDC, frame.Left, frame.Top, frame.Width, frame.Height, hDCDst, 0, 0, nDstW, nDstH, SRCCOPY);
}
return true;
}示例2: CreateGraphics
public static Graphics CreateGraphics(Graphics oldGraphics)
{
IntPtr hdc = oldGraphics.GetHdc();
oldGraphics.ReleaseHdc(hdc);
return Graphics.FromHdc(hdc);
}