'Declaration
 
Public Overloads Sub Union( _
   ByVal rectangle As Rectangle _
) 

public void Union( 
   Rectangle rectangle
)

Parameters

rectangle

The System.Drawing.Rectangle structure to unite with this Region object.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Region Class
Region Members
Overload List