## Presentation Device Driver Reference for OS/2

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### GreSetProcessControl Parameter - flProcess

flProcess (ULONG) - input Indicates which process-control flags to set.

Process-control flags:

PCTL_DRAW Has no effect on GreErasePS. If set, drawing primitives should appear on screen. Otherwise, output operations such as GreBitblt, GrePaintRegion, GreSetPel and other drawing primitives are not displayed.

PCTL_BOUND Set to indicate that GPI_BOUNDS must be accumulated.

PCTL_CORRELATE Set to indicate that correlation is to be done.

PCTL_USERBOUNDS When set, indicates that USER_BOUNDS are to be collected for the window manager.