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NS_E_WMR_PINNOTFOUND
NS_E_WMR_PINNOTFOUND: what the result means
NS_E_WMR_PINNOTFOUND (0xC00D105A) means the operation refers to a filter pin that is not present in the current graph instance.
What to capture
Record the filter instance, requested pin identifier/name, current pin enumeration and whether the graph was rebuilt or reconnected before the failing call.
Focused verification
Re-enumerate pins from the current filter instance and use the matching live pin. A cached pin reference from an older graph generation is not valid evidence that the pin still exists.
Technical references
- The DirectShow filter graph
- DirectShow media types
- Negotiating media types
- WM ASF Reader filter
- Microsoft HRESULT registry
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