Return
codes.
On completion, the handling routine must return a BOOLEAN value to indicate
success or an error.
TRUE
FALSE
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_COORDINATE_OVERFLOW PMERR_DEV_FUNC_NOT_INSTALLED
PMERR_HDC_BUSY
PMERR_INV_COORD_SPACE
PMERR_INV_HDC
PMERR_INV_LENGTH_OR_COUNT
PMERR_INV_RECT
Refer to the "Error Explanations"
section of the Presentation Manager Programming Reference for further
explanation.