rc (LONG) - returns

Return Code.

The handling routine returns:

DEV_OK

Successful
DEVESC_NOTIMPLEMENTED
Escape not implemented for specified code
DEVESC_ERROR
Error
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_LENGTH_OR_COUNT

Refer to the "Error Explanations" section of the Presentation Manager Programming Reference for further explanation.