rc (ULONG) - returns

Return codes.

PAL-ERROR Error

Count of the hardware palette slots changed.
Possible Errors Detected: When an error is detected, the handling routine must call WinSetErrorInfo to post the condition. Error codes for conditions that the handling routine is expected to check include:

PMERR_PALETTE_BUSY
PMERR_INV_IN_AREA
PMERR_INV_IN_PATH.

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