InflateRect function

The InflateRect function increases or decreases the width and height of the specified rectangle. The InflateRect function adds dx units to the left and right ends of the rectangle and dy units to the top and bottom. The dx and dy parameters are signed values; positive values increase the width and height, and negative values decrease them.

Syntax

BOOL InflateRect(
  LPRECT lprc,
  int    dx,
  int    dy
);

Parameters

lprc

A pointer to the RECT structure that increases or decreases in size.

dx

The amount to increase or decrease the rectangle width. This parameter must be negative to decrease the width.

dy

The amount to increase or decrease the rectangle height. This parameter must be negative to decrease the height.

Return Value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.

Remarks

Because applications can use rectangles for different purposes, the rectangle functions do not use an explicit unit of measure. Instead, all rectangle coordinates and dimensions are given in signed, logical values. The mapping mode and the function in which the rectangle is used determine the units of measure.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header winuser.h (include Windows.h)
Library User32.lib
DLL User32.dll

See Also

IntersectRect

OffsetRect

RECT

Rectangle Functions

Rectangles Overview

UnionRect