## Presentation Device Driver Reference for OS/2

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### GreQueryPaletteRealization - Parameters

hdc (HDC) - input Device context handle.

ulStart (ULONG) - input Starting index, first palette entry to query.

cclr (ULONG) - input Count of palette entries.

pclr (PULONG) - input Pointer to an array of ULONGs.

pInstance (PVOID) - input Pointer to instance data.

lFunction (ULONG) - input HHigh-order WORD=flags; low-order WORD= NGreQueryPaletteRealization.

rc (ULONG) - returns Return codes.

This function returns the count of the palette entries.

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_INV_DC