## Presentation Device Driver Reference for OS/2

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### GreGetBoundsData - Remarks

All presentation drivers must support GPI bounds. These bounds should be transformed to model space coordinates when they are accumulated. Display drivers must also support user bounds in screen coordinates. Bounds are inclusive. A NULL boundary is represented by the minimum coordinates of the rectangle, which are greater than its maximum coordinates. If the bounds have been reset, a NULL value is returned for pBoundsData.