1分钟后拍摄截图

问题描述

我有两个问题：

1。每隔1分钟，如何在按下键后每1分钟拍摄一次屏幕截图，例如：

2。假设程序运行5-10分钟，如何迭代图像链

 字符串ImgPath = @ D ：\ Img +迭代+ .bmp; 
位图btmp =新Bitmap（Screen.PrimaryScreen.Bounds.Width，Screen.PrimaryScreen.Bounds.Height）; 
 Graphics g =图形。 FromImage（btmp）; 
 g.CopyFromScreen（Screen.PrimaryScreen.Bounds.X，Screen.PrimaryScreen.Bounds.Y，0，0，btmp.Size，CopyPixelOperation.SourceCopy）; 
  

如果有的话

谢谢！

解决方案

您要执行的是启动（或重新启动）拍照。然后，每按一次键，您都会检查秒表是否已经运行了至少一分钟。如果有，请拍照并重置秒表。一般思路：

  //程序启动时开始计时。 
私人秒表_pictureTimer = Stopwatch.StartNew（）; 
 
 //在图片之间等待这么长时间
 private readonly TimeSpan _pictureWaitTime = TimeSpan.FromMinutes（1.0）; 
 
 //按下键时来到这里。 
 if（_pictureTimer.Elapsed> _pictureWaitTime）
 {
 //拍摄屏幕快照
 //然后重置秒表
 _pictureTimer.Restart（）; 
} 
  

如果要对图片编号，请保留每次更新的变量。程序启动时，将其初始化：

  private int _pictureNumber = 1; 
  

每当您拍照时，都将其递增。也就是说，重置秒表后，只需执行以下操作：

  _pictureNumber = pictureNumber + 1; 
  

I have two questions:

1. How can I take screenshot after every 1 min, when a key is pressed E.g.

2. How can I iterate the image chain assuming my program runs for 5-10 mins

  string ImgPath = @"D:\"Img" + iteration + ".bmp";
  Bitmap btmp = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
  Graphics g = Graphics.FromImage(btmp);
  g.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, btmp.Size, CopyPixelOperation.SourceCopy);

Also if there is a more better way to take screenshot please share here.

Thanks!

解决方案

What you want to do is start (or restart) a Stopwatch when you take a picture. Then, whenever a key is pressed, you check if the Stopwatch has been running for at least a minute. If it has, you take the picture and reset the stopwatch. The general idea:

// Start the clock when the program starts.
private Stopwatch _pictureTimer = Stopwatch.StartNew();

// Wait this long between pictures
private readonly TimeSpan _pictureWaitTime = TimeSpan.FromMinutes(1.0);

// Come here when key is pressed.
if (_pictureTimer.Elapsed > _pictureWaitTime)
{
    // take the screen shot
    // and then reset the stopwatch
    _pictureTimer.Restart();
}

If you want to number the pictures, keep a variable that you update every time. When the program starts, you initialize it:

private int _pictureNumber = 1;

And whenever you take a picture, you increment it. That is, after resetting the stopwatch, just do:

_pictureNumber = pictureNumber + 1;

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