DXGKDDI_MONITOR_GETMONITORDESCRIPTORSET callback function (d3dkmddi.h)
The pfnGetMonitorDescriptorSet function returns a handle to a monitor descriptor set object that is associated with a specified monitor.
Syntax
DXGKDDI_MONITOR_GETMONITORDESCRIPTORSET DxgkddiMonitorGetmonitordescriptorset;
NTSTATUS DxgkddiMonitorGetmonitordescriptorset(
[in] IN_CONST_D3DKMDT_ADAPTER hAdapter,
[in] IN_CONST_D3DDDI_VIDEO_PRESENT_TARGET_ID VideoPresentTargetId,
[out] OUT_PD3DKMDT_HMONITORDESCRIPTORSET phMonitorDescriptorSet,
[out] DEREF_OUT_CONST_PPDXGK_MONITORDESCRIPTORSET_INTERFACE ppMonitorDescriptorSetInterface
)
{...}
Parameters
[in] hAdapter
A handle that identifies a display adapter. The Microsoft DirectX graphics kernel subsystem previously provided this handle to the display miniport driver in the DxgkInterface parameter of the DxgkDdiStartDevice function.
[in] VideoPresentTargetId
An integer that identifies one of the video present targets on the display adapter. The returned monitor descriptor set object contains descriptors for the monitor that is connected to this video present target.
[out] phMonitorDescriptorSet
A pointer to a variable that receives a handle to a monitor descriptor set object.
[out] ppMonitorDescriptorSetInterface
A pointer to a variable that receives a pointer to a DXGK_MONITORDESCRIPTORSET_INTERFACE structure. The structure contains pointers to functions that the display miniport driver can call to inspect and alter the monitor descriptor set object.
Return value
The pfnGetMonitorDescriptorSet function returns one of the following values.
| Return code | Description |
|---|---|
| STATUS_SUCCESS | The function succeeded. |
| STATUS_INVALID_PARAMETER | An invalid parameter was supplied. |
| STATUS_GRAPHICS_INVALID_DISPLAY_ADAPTER | The handle supplied in hAdapter was invalid. |
| STATUS_GRAPHICS_INVALID_VIDEO_PRESENT_TARGET | The identifier supplied in VideoPresentTargetId was invalid. |
| STATUS_GRAPHICS_MONITOR_NOT_CONNECTED | There is no monitor connected to the video present target identified by VideoPresentTargetId. |
Remarks
VidPN target identifiers are assigned by the display miniport driver. The DxgkDdiQueryChildRelations function, implemented by the display miniport driver, returns an array of DXGK_CHILD_DESCRIPTOR structures, each of which contains an identifier.
You do not need to release the handle returned in phMonitorDescriptorSet.
This function is also available in the DXGK_MONITOR_INTERFACE_V2 interface beginning with Windows 7.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista |
| Target Platform | Desktop |
| Header | d3dkmddi.h (include D3dkmddi.h) |
| IRQL | PASSIVE_LEVEL |