Return
Code.
The handling routine must return a LONG value indicating the number of elements
returned in pArray or:
QLCT_ERROR
QLCT_RGB
Color table is in RGB mode and no
elements are returned.
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_DEV_FUNC_NOT_INSTALLED PMERR_INV_COLOR_OPTIONS
PMERR_INV_COLOR_START_INDEX
PMERR_INV_HDC
PMERR_INV_LENGTH_OR_COUNT
Refer to the "Error Explanations"
section in the Presentation Manager Programming Reference for further
explanation.