9.8 Rectangle
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## 9.8 Rectangle

A data structure that defines a rectangular region on a display screen. The fields in the data structure are:

- RefPointX : int

- RefPointY : int

that define the location of the top left corner of the region in screen coordinates, and

- Width : int

- Height : int

that specify the extents of the region. Screen coordinates are defined starting from an origin of 0,0 in the upper left corner of the screen, and extend in the positive direction down and to the right.

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