IMFTopologyServiceLookupClient interface
Initializes a video mixer or presenter. This interface is implemented by mixers and presenters, and enables them to query the enhanced video renderer (EVR) for interface pointers.
Members
The IMFTopologyServiceLookupClient interface inherits from the IUnknown interface. IMFTopologyServiceLookupClient also has these types of members:
Methods
The IMFTopologyServiceLookupClient interface has these methods.
| Method | Description |
|---|---|
| InitServicePointers |
Signals the mixer or presenter to query the EVR for interface pointers. |
| ReleaseServicePointers |
Signals the mixer or presenter to release the interface pointers obtained from the EVR. |
Remarks
When the EVR loads the video mixer and the video presenter, the EVR queries the object for this interface and calls InitServicePointers. Inside the InitServicePointers method, the object can query the EVR for interface pointers.
Requirements
|
Minimum supported client |
Windows Vista [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2008 [desktop apps only] |
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Header |
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Library |
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See also