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NS_E_WMP_GOFULLSCREEN_FAILED
Diagnosing NS_E_WMP_GOFULLSCREEN_FAILED in the Windows Media Player playback path
NS_E_WMP_GOFULLSCREEN_FAILED (0xC00D11BF) is returned when the Player-level transition to full-screen presentation could not be completed.
Record what the Player had already completed because later retries often replace the original evidence. The specific rejected condition is the Player-level transition to full-screen presentation could not be completed.
Controlled playback comparison
- Start from the original call and log
0xC00D11BFtogether with its object and operation phase. - Collect video presence, renderer state, window ownership, monitor geometry, display-mode result and foreground restrictions before changing the machine.
- Use this single-variable test: confirm windowed rendering, then request full screen on the active monitor after playback reaches running state.
- Repeat on a fresh object if the original predates a configuration, device or resource change.
- Validate the expected next operation, not just initial open or object creation.
Actions that obscure the cause
- re-encoding the media before testing window and renderer state.
Technical references
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