如何使用GDI+在picturebox控件上面绘画

[萨鲁-梅路艾姆]

比如，在picturebox控件上画个矩形。

[bdmh]

        private void pictureBox1_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.FillRectangle(Brushes.Red, 0, 0, 100, 100);

        }

[萨鲁-梅路艾姆]

[Quote=引用 1 楼 的回复:]

C# code

private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.FillRectangle(Brushes.Red, 0, 0, 100, 100);

}
[/Quote]

如果我想自定义坐标呢？

[萨鲁-梅路艾姆]

[Quote=引用 1 楼 的回复:]

C# code

private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.FillRectangle(Brushes.Red, 0, 0, 100, 100);

}
[/Quote]
如果我想自定义坐标和大小呢？

[tsmoon2009]

[Quote=引用 1 楼 的回复:]
C# code


private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.FillRectangle(Brushes.Red, 0, 0, 100, 100);

}
[/Quote]

e.Graphics.FillRectangle(Brushes.Red, x, y, width, height);

x,y对应矩形左上角坐标 width, height宽跟高

创建Graphics对象在控件或窗体上还可以
Graphics g=this.picturebox.CreatGraphics();