## Graphics Adapter Device Driver Reference

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### GHI_CMD_QUERYMODES Parameter - pOut

pOut (PVOID) - output Pointer to the pIn operation.

This pointer indicates one of the following, depending on the value of pIn:

QUERYMODE_NUM_MODES Indicates a pointer to a ULONG that is to be given the number of supported modes.
QUERYMODE_MODE_DATA Indicates a pointer to an array of GDDMODEINFO structures large enough for the number of supported modes.