屏幕截图

Question

当我按下窗口上的按钮时，我想截取屏幕截图。问题是，在截取屏幕截图之前窗口会消失。

这是我的代码：

主窗口：

private void OnButtonScreenshotClick(object sender, RoutedEventArgs routedEventArgs)
{
    this.Visibility = Visibility.Hidden;
    ScreenCapture capture = new ScreenCapture();
    this.Close();
    capture.Show();      
}

ScreenCapture（显示屏幕截图）

public ScreenCapture()
{
    InitializeComponent();
    this.ScreenCaptureImage.Source = Screenshot.TakeFullScreenshot(width, height);
}

正如您所见，我在初始化新的ScreenCapture-Window之前尝试隐藏窗口。我也尝试使用Thread.Sleep延迟，但这也不起作用。

这是我拍摄屏幕截图的代码：

public static ImageSource TakeFullScreenshot(int width, int height)
{
   Image bitmap = new Bitmap(width, height);
    {
        using (Graphics graphics = Graphics.FromImage(bitmap))
        {
            graphics.CopyFromScreen(new Point(0, 0), new Point(0, 0), bitmap.Size);
        }
    }
    return GetImageStream(bitmap);
}

private static BitmapSource GetImageStream(Image myImage)
{
    var bitmap = new Bitmap(myImage);
    IntPtr bmpPt = bitmap.GetHbitmap();
    BitmapSource bitmapSource =
    System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
          bmpPt,
          IntPtr.Zero,
          Int32Rect.Empty,
          BitmapSizeOptions.FromEmptyOptions());
    //freeze bitmapSource and clear memory to avoid memory leaks
    //bitmapSource.Freeze();
    //DeleteObject(bmpPt);
    return bitmapSource;
}

有什么建议吗？

Answer 1

使用this而不是this.Close（）;

this.Hide();