如何实现自定义按扭功能？？？？

[nyucv]

把按扭变为圆形，立体自定义形状！请问如何用C#实现！谢谢！

[Essence_zhx]

设置button的region属性就可以了

[renrenqq]

用ImageButton加图片

[cimoka]

继承一个button类，重写绘图事件。这样最合适了
网上有写自定义控件的例子

[sharpdew]

Rectangle rect=this.button1.ClientRectangle;
System.Drawing.Drawing2D.GraphicsPath gPath=new System.Drawing.Drawing2D.GraphicsPath();
int r=15;
gPath.AddLine(rect.Left+r,rect.Top,rect.Right-r,rect.Top);
gPath.AddArc(rect.Right-2*r,rect.Top,2*r,2*r,270,90);
gPath.AddLine(rect.Right,rect.Top+r,rect.Right,rect.Bottom-r);
gPath.AddArc(rect.Right-2*r,rect.Bottom-2*r,2*r,2*r,0,90);
gPath.AddLine(rect.Right-r,rect.Bottom,rect.Left+r,rect.Bottom);
gPath.AddArc(rect.Left,rect.Bottom-2*r,2*r,2*r,90,90);
gPath.AddLine(rect.Left,rect.Bottom-r,rect.Left,rect.Top+r);
gPath.AddArc(rect.Left,rect.Top,2*r,2*r,180,90);
Region reg=new Region(gPath);
this.button1.Region=reg;

[nyucv]

晕倒！谢谢楼上兄台！
我一点按扭。边框就出现了。好难看呀！

[boytomato]

private void button1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
System.Drawing.Drawing2D.GraphicsPath buttonPath =
new System.Drawing.Drawing2D.GraphicsPath();

// Set a new rectangle to the same size as the button's
// ClientRectangle property.
System.Drawing.Rectangle newRectangle = button1.ClientRectangle;

// Decrease the size of the rectangle.
newRectangle.Inflate(-10, -10);
// Draw the button's border.
e.Graphics.DrawEllipse(System.Drawing.Pens.Black, newRectangle);

// Increase the size of the rectangle to include the border.
newRectangle.Inflate( 1, 1);

// Create a circle within the new rectangle.
buttonPath.AddEllipse(newRectangle);
// Set the button's Region property to the newly created
// circle region.
button1.Region = new System.Drawing.Region(buttonPath);
}

[互通互联]

经典。