连续截屏而不减慢电脑速度 - C#
我必须为我的程序每 250 毫秒连续捕获一次屏幕截图（类似于 Netmeeting）。我使用了以下代码：
Image CaptureScreenShot()
{
bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);
gfxScreenshot = Graphics.FromImage(bmpScreenshot);
gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
return bmpScreenshot;
}
捕获屏幕截图，但它会降低 PC 的性能。其中，Netmeeting 没有。 有没有办法在不降低电脑速度的情况下获得屏幕截图？ 代码示例将不胜感激
I have to capture a screen shot continuously after every 250 milliseconds for my program (Similar to Netmeeting). I used the following code:
Image CaptureScreenShot()
{
bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);
gfxScreenshot = Graphics.FromImage(bmpScreenshot);
gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
return bmpScreenshot;
}
To capture the screenshot but it slow the performance of the PC. Where, Netmeeting do not.
Is there any way to get screen shot without slowing the PC?
Code sample will be appreciated
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您在这里找不到基本的答案。他们使用更多复杂的机制来检测屏幕上的变化并发送它们。
查看终端 svc 的工作原理 -
http://technet.microsoft.com/en-us /library/cc755399%28WS.10%29.aspx
理想情况下，您可以连接 GUI 并监视事件等，这比简单的屏幕抓取要高级得多。如果您想查看不太高级的代码，请查看 http://www.tightvnc.com
You won't find a basic answer here. They use much more involved mechanisms for detecting changes on the screen and sending them.
Check out how terminal svcs work -
http://technet.microsoft.com/en-us/library/cc755399%28WS.10%29.aspx
ideally you are hooking into the GUI and monitoring events, etc. much more advanced than simply screen scraping. If you want to look at less advanced code check out http://www.tightvnc.com