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Graphics.ExcludeClip Method (Region)

Updates the clip region of this Graphics to exclude the area specified by a Region.

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

public void ExcludeClip (
	Region region
)
public void ExcludeClip (
	Region region
)
public function ExcludeClip (
	region : Region
)
Not applicable.

Parameters

region

Region that specifies the region to exclude from the clip region.

This method excludes the area specified by the region parameter from the current clip region and assigns the resulting area to the Clip property of this Graphics.

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 actions:

  • Creates a 100 pixel by 100 pixel rectangle whose upper-left corner is at the coordinate (100, 100).

  • Sets the clipping region to exclude the rectangle.

  • Fills a 300 pixel by 300 pixel rectangle whose upper-left corner is at the coordinate (0, 0) with a solid blue brush.

The result is a blue rectangle with a square area toward its lower-right corner missing.

public void ExcludeClipRegion(PaintEventArgs e)
{
             
    // Create rectangle for region.
    Rectangle excludeRect = new Rectangle(100, 100, 200, 200);
             
    // Create region for exclusion.
    Region excludeRegion = new Region(excludeRect);
             
    // Set clipping region to exclude region.
    e.Graphics.ExcludeClip(excludeRegion);
             
    // Fill large rectangle to show clipping region.
    e.Graphics.FillRectangle(new SolidBrush(Color.Blue), 0, 0, 300, 300);
}

public void ExcludeClipRegion(PaintEventArgs e) 
{

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

    // Create region for exclusion.
    Region excludeRegion =  new Region(excludeRect);

    // Set clipping region to exclude region.
    e.get_Graphics().ExcludeClip(excludeRegion);

    // Fill large rectangle to show clipping region.
    e.get_Graphics().FillRectangle(new SolidBrush(Color.get_Blue()), 0, 0, 
        300, 300);
} //ExcludeClipRectangle

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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