// d3dkmddi.h

DXGKDDI_MONITORSOURCEMODESET_GETNUMMODES DxgkddiMonitorsourcemodesetGetnummodes;

NTSTATUS DxgkddiMonitorsourcemodesetGetnummodes(
  IN_CONST_D3DKMDT_HMONITORSOURCEMODESET hMonitorSourceModeSet,
  OUT_PSIZE_T_CONST pNumMonitorSourceModes
)
{...}
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Windows Driver Kit DDI reference (nc-d3dkmddi-dxgkddi_monitorsourcemodeset_getnummodes)

DXGKDDI_MONITORSOURCEMODESET_GETNUMMODES callback function

Description

The pfnGetNumModes function returns the number modes in a specified monitor source mode set.

Parameters

`hMonitorSourceModeSet`

A handle to a monitor source mode set object. The display miniport driver previously obtained this handle by calling the pfnAcquireMonitorSourceModeSet function of the Monitor interface.

`pNumMonitorSourceModes`

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

Return value

The pfnGetNumModes function returns one of the following values:

Return code	Description
STATUS_SUCCESS	The function succeeded.
STATUS_GRAPHICS_INVALID_MONITOR_SOURCEMODESET	The handle supplied in hMonitorSourceModeSet was invalid.

Remarks

The D3DKMDT_HMONITORSOURCEMODESET data type is defined in D3dkmdt.h.

DXGKDDI_MONITORSOURCEMODESET_GETNUMMODES - NtDoc