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Graphics::FillRegion Method

Fills the interior of a Region.

Namespace:  System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

public:
void FillRegion(
	Brush^ brush, 
	Region^ region
)

Parameters

brush
Type: System.Drawing::Brush

Brush that determines the characteristics of the fill.

region
Type: System.Drawing::Region

Region that represents the area to fill.

ExceptionCondition
ArgumentNullException

brush is nullptr.

-or-

region is nullptr.

A Region is composed of rectangles and paths. If the region is not closed, an additional segment is added from the last point to the first point to close it.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following action:

  • Creates a solid blue brush.

  • Creates a rectangle.

  • Creates a rectangular region.

  • Fills the rectangular region on the screen.

public:
   void FillRegionRectangle( PaintEventArgs^ e )
   {
      // Create solid brush.
      SolidBrush^ blueBrush = gcnew SolidBrush( Color::Blue );

      // Create rectangle for region.
      Rectangle fillRect = Rectangle(100,100,200,200);

      // Create region for fill.
      System::Drawing::Region^ fillRegion = gcnew System::Drawing::Region( fillRect );

      // Fill region to screen.
      e->Graphics->FillRegion( blueBrush, fillRegion );
   }

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
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