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STATUS_GRAPHICS_PRESENT_UNOCCLUDED
STATUS_GRAPHICS_PRESENT_UNOCCLUDED marks an ownership transition: the previous exclusive owner of the VidPN source released it. It is useful as a state-change signal, not as a substitute for a successful frame-present completion result.
Once the prior owner releases the source, a caller that was blocked by exclusivity can re-evaluate the active VidPN and start the next permitted operation. The source must still be checked against the current topology because mode, target, or session changes can occur around the same transition.
What to correlate
- The earlier ownership or occlusion status and the source ID involved.
- Fullscreen entry or exit, display-mode changes, and compositor state changes.
- Any handoff between display-management clients or application presentation paths.
A blind retry is less useful than a retry after confirming that the selected source remains part of the intended active topology and is no longer owned by another client.
References
- Microsoft: NTSTATUS reference
- Microsoft: VidPN sources, targets, and active topology
- Microsoft: display flip behavior
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