Is this possible to have triangular PictureBox instead of the rectangular one?

£可爱£侵袭症+ 提交于 2019-12-17 20:43:16

问题


Is this possible to have triangular PictureBox control in windows forms instead of the rectangular one?


回答1:


You have some options, for example:

  • You can set the region of control to a triangle.
  • You can only paint in a triangular area of the control.

Example 1

In this example, the region of control limited to a triangular shape.

public class TriangularPictureBox:PictureBox
{
    protected override void OnPaint(PaintEventArgs pe)
    {
        using (var p = new GraphicsPath())
        {
            p.AddPolygon(new Point[] {
                new Point(this.Width / 2, 0), 
                new Point(0, Height), 
                new Point(Width, Height) });

            this.Region = new Region(p);
            base.OnPaint(pe);
        }
    }
}

Example 2

In this example, the painting will be done only on a triangular area of the control.

public class TriangularPictureBox:PictureBox
{
    protected override void OnPaint(PaintEventArgs pe)
    {
        using (var p = new GraphicsPath())
        {
            p.AddPolygon(new Point[] {
                new Point(this.Width / 2, 0), 
                new Point(0, Height), 
                new Point(Width, Height) });

            pe.Graphics.SetClip(p);
            base.OnPaint(pe);
        }
    }
}



来源:https://stackoverflow.com/questions/35467199/is-this-possible-to-have-triangular-picturebox-instead-of-the-rectangular-one

易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!