Screenshot code for the specified area of the screen based on the C implementation

  • 2020-06-01 10:51:20
  • OfStack

Previously seen in other places one by calling system API screenshots implementation examples, from the heart, I don't like this happens in C # code, now what all speak "harmony", I think this kind of practice is the "harmony" spoiled our code, ha ha, joke, sometimes, not through the system API really hard to do.

Here's how to get a screenshot using pure C#. The code is as follows:

// Capture a full screen image 
        private void btnFullScreen_Click(object sender, EventArgs e)
            // Create an image and save the captured image 
            Bitmap image = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
            Graphics imgGraphics = Graphics.FromImage(image);
            // Set the screenshot area   KeLeYi 
            imgGraphics.CopyFromScreen(0, 0, 0, 0, new Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height));
            // save 
// Save image file 
        private void SaveImage(Image image)
            if (saveFileDialog.ShowDialog(this) == DialogResult.OK)
                string fileName = saveFileDialog.FileName;
                string extension = Path.GetExtension(fileName);
                if (extension == ".jpg")
                    image.Save(fileName, ImageFormat.Jpeg);
                    image.Save(fileName, ImageFormat.Bmp);

This code is simple enough to set the location and size of the screenshot area, but it only works in 2.0 environment. I am in the next step to improve the implementation of drag drag screenshot technology, similar to QQ screenshot method, is tackling the key, if you complete the release of the source code.

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