rc (PUSHORT) - returns
This function returns a pointer to the code page vector, or it returns GPI_ERROR if an error occurs.
Possible Errors Detected: When an error is detected, the graphics engine calls WinSetErrorInfo to post the condition. Reasons for failure of this function include:
PMERR_EXCEEDS_MAX_SEG_LENGTH
PMERR_INSUFFICIENT_MEMORY
PMERR_INV_CODEPAGE