Gets or sets the window region associated with the control.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The window region is a collection of pixels within the window where the operating system permits drawing. The operating system does not display any portion of a window that lies outside of the window region. The coordinates of a control's region are relative to the upper-left corner of the control, not the client area of the control.
The collection of pixels contained with the region can be noncontiguous.
The following code example demonstrates how to use the roundButton. This example requires that the Paint event is connected to the event handler defined in the example.property by creating a round button. To run the example, paste the following code in a form containing a button called
' This method will change the square button to a circular button by ' creating a new circle-shaped GraphicsPath object and setting it ' to the RoundButton objects region. Private Sub roundButton_Paint(ByVal sender As Object, _ ByVal e As System.Windows.Forms.PaintEventArgs) Handles roundButton.Paint Dim buttonPath As New System.Drawing.Drawing2D.GraphicsPath ' Set a new rectangle to the same size as the button's ' ClientRectangle property. Dim newRectangle As Rectangle = roundButton.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) e.Graphics.DrawPath(Pens.Black, buttonPath) ' Set the button's Region property to the newly created ' circle region. roundButton.Region = New System.Drawing.Region(buttonPath) End Sub
Available since 1.1