1

我正在开发一个程序来获取高级屏幕截图。但是我遇到了一个错误，我希望有人可以帮助我。

  • 我可以用这段代码截屏：

           // The screenshot will be stored in this bitmap.
    Bitmap capture = new Bitmap(screenBounds.Width, screenBounds.Height);

    // The code below takes the screenshot and
    // saves it in "capture" bitmap.
    g = Graphics.FromImage(capture);
    g.CopyFromScreen(Point.Empty, Point.Empty, screenBounds);

    // This code assigns the screenshot
    // to the Picturebox so that we can view it
    pictureBox1.Image = capture;
    pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;

    // The code below make the form visible again, enables the "Save" button and stops the timer.
    this.Show();
    button2.Enabled = true;
    timer1.Stop();

  • 在图片框上绘图：

            color = new SolidBrush(Color.Black);
        Graphics g = pictureBox1.CreateGraphics();
        g.FillEllipse(color, e.X, e.Y, 10, 10);
        g.Dispose();

问题：我只能保存截图，不能保存图纸。
我希望有人能帮帮忙

4

1 回答 1

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不要使用CreateGraphics()- 这是一个临时图纸。使用您的捕获图像：

using (Graphics g = Graphics.FromImage(capture)) {
  g.FillEllipse(color, e.X, e.Y, 10, 10);
}
于 2013-09-24T18:23:25.773 回答