- rc
 - A System.Drawing.Rectangle that represents the region to invalidate.
 
| Visual Basic (Usage) |  Copy Code | 
|---|---|
Dim instance As Medical3DControl Dim rc As Rectangle instance.Invalidate(rc)  | |
Parameters
- rc
 - A System.Drawing.Rectangle that represents the region to invalidate.
 
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7
  
   
                           
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