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, |
// address of structure for intersection |
CONST RECT *lprcSrc1, |
// address of structure with first rectangle |
CONST RECT *lprcSrc2 |
// address of structure with second rectangle |
); |
If the rectangles intersect, the return value is nonzero.
If the rectangles do not intersect, the return value is zero. To get extended error information, call GetLastError.
InflateRect, OffsetRect, RECT, UnionRect
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