## Presentation Device Driver Reference for OS/2

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### GreQueryFontFileDescriptions Return Value - rc

rc (ULONG) - returns Return codes.

This function returns the number of fonts not returned, or it returns GPI_ ALTERROR 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_BASE_ERROR
PMERR_INV_FONT_FILE_DATA

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