RectGrow

void RectGrow (Rect *rect, int dx, int dy);

Purpose

Modifies the values in a Rect structure so that the rectangle it defines grows or shrinks around its current center point.

Parameters

Input
Name Type Description
dx integer Amount to grow the rectangle horizontally.

Use a negative value to shrink the rectangle horizontally.
dy integer Amount to grow the rectangle vertically.

Use a negative value to shrink the rectangle vertically.
Output
Name Type Description
rect Rect On input, the size and location of a rectangle.

On output, a rectangle of a different size but the same center point.

Return Value

None.