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ExcludeClipRect

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This function creates a new clipping region that consists of the existing clipping region minus the specified rectangle.

int ExcludeClipRect(
  HDC hdc, 
  int nLeftRect, 
  int nTopRect, 
  int nRightRect, 
  int nBottomRect
);

Parameters

  • hdc
    [in] Handle to the device context.
  • nLeftRect
    [in] Specifies the logical x-coordinate of the upper-left corner of the rectangle.
  • nTopRect
    [in] Specifies the logical y-coordinate of the upper-left corner of the rectangle.
  • nRightRect
    [in] Specifies the logical x-coordinate of the lower-right corner of the rectangle.
  • nBottomRect
    [in] Specifies the logical y-coordinate of the lower-right corner of the rectangle.

Return Values

The return value specifies the new clipping region's complexity. NULLREGION indicates that the region is empty. SIMPLEREGION indicates that the region is a single rectangle. COMPLEXREGION indicates that the region is more than one rectangle. ERROR indicates that no region was created.

Remarks

The lower and right edges of the specified rectangle are not excluded from the clipping region.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Windows.h.
Link Library: Coredll.lib.

See Also

IntersectClipRect | GDI Functions

Last updated on Wednesday, April 13, 2005

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