nc-d3dkmddi-dxgkddi_monitorfrequencyrangeset_getnumfrequencyranges.md

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NC:d3dkmddi.DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES	DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES (d3dkmddi.h)	The pfnGetNumFrequencyRanges returns the number of frequency range descriptors in a specified monitor frequency range set object.	display\dxgk_monitorfrequencyrangeset_interface_pfngetnumfrequencyranges.htm	05/10/2018	DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES callback function	DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES, DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES callback, VidPnFunctions_9840ad40-d098-4215-b3da-2de345970fe6.xml, d3dkmddi/pfnGetNumFrequencyRanges, display.dxgk_monitorfrequencyrangeset_interface_pfngetnumfrequencyranges, pfnGetNumFrequencyRanges, pfnGetNumFrequencyRanges callback function [Display Devices]	d3dkmddi.h	D3dkmddi.h	Desktop	Windows Vista													PASSIVE_LEVEL	Windows	display		DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES d3dkmddi/DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES	APIRef kbSyntax	UserDefined	d3dkmddi.h	DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES

DXGKDDI_MONITORFREQUENCYRANGESET_GETNUMFREQUENCYRANGES callback function

-description

The pfnGetNumFrequencyRanges returns the number of frequency range descriptors in a specified monitor frequency range set object.

-parameters

-param hMonitorFrequencyRangeSet [in]

A handle to a monitor frequency range set object. The display miniport driver previously obtained this handle by calling the pfnGetMonitorFrequencyRangeSet function of the Monitor interface.

-param pNumMonitorFrequencyRanges [out]

A pointer to a SIZE_T-typed variable that receives the number of descriptors in the set.

-returns

The pfnGetNumFrequencyRanges function returns one of the following values.

Return code	Description
STATUS_SUCCESS	The function succeeded.
STATUS_INVALID_PARAMETER	An invalid parameter was supplied.
STATUS_INVALID_MONITOR_FREQUENCYRANGESET	The handle supplied in hMonitorFrequencyRangeSet was invalid.