The PtInRect function determines whether the specified point lies within the specified rectangle. A point is within a rectangle if it lies on the left or top side or is within all four sides. A point on the right or bottom side is considered outside the rectangle.
BOOL PtInRect(
CONST RECT *lprc, // pointer to structure with rectangle
POINT pt // structure with point
);
If the specified point lies within the rectangle, the return value is nonzero.
If the specified point does not lie within the rectangle, the return value is zero.
Windows NT: To get extended error information, call GetLastError.
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.
Rectangles Overview, Rectangle Functions, EqualRect, IsRectEmpty, POINT, RECT