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Specifies the start time for a segment topology.
Data type
UINT64
Treat as a LONGLONG value.
Remarks
This attribute is used with the MESourceStarted event. The sequencer source sets this attribute when the current segment topology has the MF_TOPOLOGY_PROJECTSTART attribute. The two attributes have the same value.
This attribute is a signed value, although it is stored as a UINT64.
The GUID constant for this attribute is exported from mfuuid.lib.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Header |
|
See also