IntersectRect

The IntersectRect function calculates the intersection of two source rectangles and places the coordinates of the intersection rectangle into the destination rectangle. If the source rectangles do not intersect, an empty rectangle (in which all coordinates are set to zero) is placed into the destination rectangle.

BOOL IntersectRect(
  LPRECT lprcDst,        // pointer to structure for intersection
  CONST RECT *lprcSrc1,  // pointer to structure with first rectangle
  CONST RECT *lprcSrc2   // pointer to structure with second rectangle
);
 

Parameters

lprcDst

Pointer to the RECT structure that is to receive the intersection of the rectangles pointed to by the lprcSrc1 and lprcSrc2 parameters.

lprcSrc1

Pointer to the RECT structure that contains the first source rectangle.

lprcSrc2

Pointer to the RECT structure that contains the second source rectangle.

Return Values

If the rectangles intersect, the return value is nonzero.

If the rectangles do not intersect, the return value is zero.

Windows NT: To get extended error information, call GetLastError.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Requires version 1.0 or later.
  Header: Declared in winuser.h.
  Import Library: Use user32.lib.

See Also

Rectangles Overview, Rectangle Functions, InflateRect, OffsetRect, RECT, UnionRect