CopyFromScreen Method (Point, Point, Size, CopyPixelOperation)

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.

Exception Condition
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.

No code example is currently available or this language may not be supported.

UIPermission

for access to all windows. Related enumeration: AllWindows.

.NET Framework
Available since 2.0
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