C#截图全窗口

Question

我正在尝试使用 .NET Framework 编写控制台应用程序。我想截屏我的屏幕。我在 SO 上使用了其他答案，如下所示：

https://stackoverflow.com/a/24879511/9457997

问题是这并没有捕获我的整个屏幕。它在底部和右侧缺失了大约 1/5。

如何使用 C# .NET Framework 捕获整个屏幕？

Answer 1

使用VirtualScreen:

int screenLeft = SystemInformation.VirtualScreen.Left;
int screenTop = SystemInformation.VirtualScreen.Top;
int screenWidth = SystemInformation.VirtualScreen.Width;
int screenHeight = SystemInformation.VirtualScreen.Height;

// Create a bitmap of the appropriate size to receive the full-screen screenshot.
using (Bitmap bitmap = new Bitmap(screenWidth, screenHeight))
{
    // Draw the screenshot into our bitmap.
    using (Graphics g = Graphics.FromImage(bitmap))
    {
        g.CopyFromScreen(screenLeft, screenTop, 0, 0, bitmap.Size);
    }

    //Save the screenshot as a Jpg image
    var uniqueFileName = "C:\\temp\\a.Jpg";
    try
    {
        bitmap.Save(uniqueFileName, ImageFormat.Jpeg);
    }
    catch (Exception ex) {
    }
 }

Answer 2

您可以使用Screen.PrimaryScreen.Bounds; 获取屏幕的边界。

Rectangle bounds = Screen.PrimaryScreen.Bounds;
using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))
using (Graphics g = Graphics.FromImage(bitmap))
{
    g.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size);
    bitmap.Save("C://test.jpg", ImageFormat.Jpeg);
}

您需要引用 System.Drawing、System.Drawing.Imaging 和 System.Windows.Forms 才能使此代码示例在控制台应用程序中运行。

Answer 3

很遗憾，我还没有找到从控制台应用程序截屏的方法，但这是我截屏的方法，让用户使用SaveFileDialog 选择保存图片的位置。

对于以下代码，您将需要这三个引用：

using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;

您可以将此代码附加到按钮或事件：

Bitmap bt = new Bitmap(Screen.PrimaryScreen.Bounds.Width, 
Screen.PrimaryScreen.Bounds.Height);
Graphics g = Graphics.FromImage(bt);
g.CopyFromScreen(0, 0, 0, 0, bt.Size);
SaveFileDialog sfd = new SaveFileDialog();
sfd.ShowDialog();
string name = sfd.FileName + ".jpg";
bt.Save(name, ImageFormat.Jpeg);