GetClipRgn (Windows Embedded CE 6.0)

1/6/2010

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

See Also

Reference

GDI Functions
BeginPaint
SelectClipRgn