## Presentation Device Driver Reference for OS/2

[prev][next][parent][TOC]

### Default_Primary Return Value - rc

rc (ULONG) - returns Return codes.

Action routines return the following values:

0 Indicates that no problems were encountered and DSPINSTL should proceed forward.

0xFFFFFFFF Indicates that the action routine is returning a Cancel indication, which might be triggered by the user pressing a Cancel push button within a PM panel that was invoked by the action routine. Note that the Cancel return code is supported so that DSPINSTL can back out of its current execution path.

0xFFFFFFFE Is a reserved return code

All other non-zero values are interpreted as OS/2 system error codes.