CopyFromScreen Method (Int32, Int32, Int32, Int32, Size, CopyPixelOperation)

Graphics.CopyFromScreen Method (Int32, Int32, Int32, Int32, Size, CopyPixelOperation)

Performs a bit-block transfer of the 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(
	int sourceX,
	int sourceY,
	int destinationX,
	int destinationY,
	Size blockRegionSize,
	CopyPixelOperation copyPixelOperation
)

Parameters

sourceX
Type: System.Int32
The x-coordinate of the point at the upper-left corner of the source rectangle.
sourceY
Type: System.Int32
The y-coordinate of the point at the upper-left corner of the source rectangle
destinationX
Type: System.Int32
The x-coordinate of the point at the upper-left corner of the destination rectangle.
destinationY
Type: System.Int32
The y-coordinate of 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 CopyPixels4 method from the Paint event-handling method, passing e as PaintEventArgs.


private void CopyPixels4(PaintEventArgs e)
{
    e.Graphics.CopyFromScreen(0, 0, 20, 20, new Size(160, 160), 
        CopyPixelOperation.SourceInvert);
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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