Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

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)

'Declaration
Public Sub CopyFromScreen ( _
	upperLeftSource As Point, _
	upperLeftDestination As Point, _
	blockRegionSize As Size, _
	copyPixelOperation As 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 Sub CopyPixels2(ByVal e As PaintEventArgs) 
    e.Graphics.CopyFromScreen(Me.Location, _
        New Point(40, 40), New Size(100, 100), _
        CopyPixelOperation.MergePaint)
End Sub

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Show:
© 2015 Microsoft