c# - 如何使用 PaintEventArgs 参数调用函数？

Question

给定以下来自 MSDN 的代码示例:

private void GetPixel_Example(PaintEventArgs e)
    {

        // Create a Bitmap object from an image file.
        Bitmap myBitmap = new Bitmap(@"C:\Users\tanyalebershtein\Desktop\Sample Pictures\Tulips.jpg");

        // Get the color of a pixel within myBitmap.
        Color pixelColor = myBitmap.GetPixel(50, 50);

        // Fill a rectangle with pixelColor.
        SolidBrush pixelBrush = new SolidBrush(pixelColor);
        e.Graphics.FillRectangle(pixelBrush, 0, 0, 100, 100);
    }

如何调用Paint函数？

Answer 1

在绘画事件中是这样的

private PictureBox pictureBox1 = new PictureBox();

pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint);

private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
   GetPixel_Example(e) ;
}