Graphics.CopyFromScreen Method (Point, Point, Size) (System.Drawing)

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.NET Framework Class Library
Graphics.CopyFromScreen Method (Point, Point, Size)

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)
Syntax
Visual Basic
Public Sub CopyFromScreen ( _
	upperLeftSource As Point, _
	upperLeftDestination As Point, _
	blockRegionSize As Size _
)
C#
public void CopyFromScreen(
	Point upperLeftSource,
	Point upperLeftDestination,
	Size blockRegionSize
)
Visual C++
public:
void CopyFromScreen(
	Point upperLeftSource, 
	Point upperLeftDestination, 
	Size blockRegionSize
)
F#
member CopyFromScreen : 
        upperLeftSource:Point * 
        upperLeftDestination:Point * 
        blockRegionSize:Size -> unit

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.
Exceptions
Exception Condition
Win32Exception

The operation failed.
Remarks

The CopyFromScreen methods are useful for layering one image on top of another. To specify how the source and destination colors are blended, use one of the CopyFromScreen methods that takes a CopyPixelOperation parameter.

Examples

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 CopyPixels1 method from the Paint event-handling method, passing e as PaintEventArgs.

Visual Basic

Private Sub CopyPixels1(ByVal e As PaintEventArgs) 
    e.Graphics.CopyFromScreen(Me.Location, _
        New Point(40, 40), New Size(100, 100))

End Sub
C#

private void CopyPixels1(PaintEventArgs e)
{
    e.Graphics.CopyFromScreen(this.Location, 
        new Point(40, 40), new Size(100, 100));
}
Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
.NET Framework Security
Platforms

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.
See Also

Reference

Graphics Class
CopyFromScreen Overload
System.Drawing Namespace

Other Resources

How to: Print a Windows Form
How to: Copy Pixels for Reducing Flicker in Windows Forms