ExcludeClipRect

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 regions 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

Runs on Versions Defined in Include Link to
Windows CE OS 1.0 and later Wingdi.h   Mgrgn.lib

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

IntersectClipRect

 Last updated on Tuesday, July 13, 2004

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