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The GetClipRgn function retrieves a handle identifying the current application-defined clipping region for the specified device context.

Declare Function GetClipRgn Lib "gdi32" Alias "GetClipRgn" (ByVal hdc As Long, ByVal hRgn As Long) As Long


Operating Systems Supported
Requires Windows NT 3.1 or later; Requires Windows 95 or later


Parameter Information
- hdc
Identifies the device context.

- hrgn
Identifies an existing region before the function is called. After the function returns, this parameter identifies a copy of the current clipping region.

Return Values
An application-defined clipping region is a clipping region identified by the SelectClipRgn function. It is not a clipping region created when the application calls the BeginPaint function.

If the function succeeds, the hrgn parameter identifies a copy of the current clipping region. Subsequent changes to this copy will not affect the current clipping region.

Last update: 07 April 2006