Overview
Group
Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
gdi32.lib
Header File
wingdi.h
Unicode
No
Platform Notes
Windows 95: 16-bit coordinates only

IntersectClipRect

The IntersectClipRect function creates a new clipping region from the intersection of the current clipping region and the specified rectangle.

int IntersectClipRect(

HDC hdc,
// handle of device context
int nLeftRect,
// x-coordinate of upper-left corner of rectangle
int nTopRect,
// y-coordinate of upper-left corner of rectangle
int nRightRect,
// x-coordinate of lower-right corner of rectangle
int nBottomRect
// y-coordinate of lower-right corner of rectangle
);

Parameters

hdc

Identifies the device context.

nLeftRect

Specifies the logical x-coordinate of the upper-left corner of the rectangle.

nTopRect

Specifies the logical y-coordinate of the upper-left corner of the rectangle.

nRightRect

Specifies the logical x-coordinate of the lower-right corner of the rectangle.

nBottomRect

Specifies the logical y-coordinate of the lower-right corner of the rectangle.

Return Values

If the function succeeds, the return value specifies the new clipping region's type and can be any one of the following values:

Value
Meaning
NULLREGION
Region is empty.
SIMPLEREGION
Region is a single rectangle.
COMPLEXREGION
Region is more than one rectangle.
ERROR
An error occurred. (The current clipping region is unaffected.)

Remarks

The lower and rightmost edges of the given rectangle are excluded from the clipping region.

See Also

ExcludeClipRect

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