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Graphics.CopyFromScreen Method (Point, Point, Size, CopyPixelOperation)

Performs a bit-block transfer of color data, corresponding to a rectangle of pixels, from the screen to the drawing surface of the Graphics.

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

public void CopyFromScreen (
	Point upperLeftSource,
	Point upperLeftDestination,
	Size blockRegionSize,
	CopyPixelOperation copyPixelOperation
)
public void CopyFromScreen (
	Point upperLeftSource, 
	Point upperLeftDestination, 
	Size blockRegionSize, 
	CopyPixelOperation copyPixelOperation
)
public function CopyFromScreen (
	upperLeftSource : Point, 
	upperLeftDestination : Point, 
	blockRegionSize : Size, 
	copyPixelOperation : CopyPixelOperation
)
Not applicable.

Parameters

upperLeftSource

The point at the upper-left corner of the source rectangle.

upperLeftDestination

The point at the upper-left corner of the destination rectangle.

blockRegionSize

The size of the area to be transferred.

copyPixelOperation

One of the CopyPixelOperation values.

Exception typeCondition

InvalidEnumArgumentException

copyPixelOperation is not a member of CopyPixelOperation.

Win32Exception

The operation failed.

The CopyFromScreen methods are useful for layering one image on top of another. The copyPixelOperation parameter allows you to specify if and how the source colors should be blended with the colors in the destination area.

The following example demonstrates how to use the CopyFromScreen method. To run this example, paste it into a Windows Form. Handle the form’s Paint event and call the CopyPixels2 method from the Paint event-handling method, passing e as PaintEventArgs.

private void CopyPixels2(PaintEventArgs e)
{
    e.Graphics.CopyFromScreen(this.Location, new Point(40, 40), 
        new Size(100, 100), CopyPixelOperation.MergePaint); 
}

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

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