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)
'Declaration Public Sub CopyFromScreen ( _ upperLeftSource As Point, _ upperLeftDestination As Point, _ blockRegionSize As Size _ )
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.
| Exception | Condition |
|---|---|
| Win32Exception | The operation failed. |
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.
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.
- UIPermission
for access to all windows. Related enumeration: AllWindows.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
