Graphics::FillRegion Method (Brush^, Region^)

 

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.

Exception Condition
ArgumentNullException

brush is null.

-or-

region is null.

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 PaintEventArgse, 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 );
   }

.NET Framework
Available since 1.1
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