UnionRect (Compact 2013)

3/28/2014

This function creates the union of two rectangles. The union is the smallest rectangle that contains both source rectangles.


BOOL UnionRect(
  LPRECT lprcDst, 
  const RECT* lprcSrc1, 
  const RECT* lprcSrc2
);

lprcDst

Long pointer to the RECT structure that will receive a rectangle containing the rectangles pointed to by the lprcSrc1 and lprcSrc2 parameters.

lprcSrc1

Long pointer to the RECT structure that contains the first source rectangle.

lprcSrc2

Long pointer to the RECT structure that contains the second source rectangle.

Nonzero indicates that the specified structure contains a nonempty rectangle.

Zero indicates that the specified structure does not contain a nonempty rectangle.

To get extended error information, call GetLastError.

The system ignores the dimensions of an empty rectangle; that is, a rectangle in which all coordinates are set to zero, so it has no height or no width.

Header

winuser.h

Library

Rectapi.lib

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