hdc (HDC) - input

Device context handle.

pptlXY (PPOINTL) - input

Pointer to an (X,Y) coordinate pair to which the current position is returned.

pInstance (PVOID) - input

Pointer to instance data.

lFunction (ULONG) - input

High-order WORD=flags; low-order WORD=NGreGetLineOrigin.

rc (LONG) - returns

Return Code.

On completion, this function returns the style number (lStyle), or GPI_ALTERROR if an error occurs.

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_HDC

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