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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
)

Parameters

upperLeftSource
Type: System.Drawing.Point

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

upperLeftDestination
Type: System.Drawing.Point

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

blockRegionSize
Type: System.Drawing.Size

The size of the area to be transferred.

copyPixelOperation
Type: System.Drawing.CopyPixelOperation

One of the CopyPixelOperation values.

ExceptionCondition
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 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

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

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