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GetClipRgn (Compact 2013)

  • Article

3/28/2014

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

Syntax

int GetClipRgn(
  HDC hdc, 
  HRGN hrgn
);

Parameters

  • hdc
    [in] Handle to the device context.

  • hrgn
    [in, out] Handle to an existing region before the function is called.

    After the function returns, this parameter is a handle to a copy of the current clipping region.

Return Value

If there is no clipping region for the specified device context, zero indicates success.

If there is a clipping region for the specified device context, 1 indicates success.

-1 indicates that an error occurred.

To get extended error information, call GetLastError.

Remarks

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 is a handle to a copy of the current clipping region. Subsequent changes to this copy will not affect the current clipping region.

Requirements

Header

windows.h

Library

coredll.lib

See Also

Reference

GDI Functions
BeginPaint
SelectClipRgn