## Presentation Device Driver Reference for OS/2

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### GreRestoreRegion Parameter - cSave

cSave (LONG) - input DC save level.

Indicates the saved DC state, which the handling routine uses to restore the region. When this is passed as -1, the handling routine resets the region to its initial state (-1 is passed to this routine from GreResetDC and is the only valid negative value). A value of 0 indicates that the region is restored to its initial state. Other positive values identify which saved level is restored. See RestoreDCState.