csharp System.Windows.Forms.Control.Handle类(方法)实例源码

// This method draws a focus rectangle on Button2 using the 
// handle and client rectangle of Button2.
private void Button1_Click(System.Object sender, System.EventArgs e)
{
    ControlPaint.DrawFocusRectangle(Graphics.FromHwnd(Button2.Handle), 
        Button2.ClientRectangle);
}