UnionRect
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4/8/2010
This function creates the union of two rectangles. The union is the smallest rectangle that contains both source rectangles.
Syntax
BOOL UnionRect(
LPRECT lprcDst,
const RECT* lprcSrc1,
const RECT* lprcSrc2
);
Parameters
- 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.
Return Value
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.
Remarks
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.
Requirements
| Header | winuser.h |
| Library | Rectapi.lib |
| Windows Embedded CE | Windows CE 1.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |