What does HRESULT 0x00040253 (TPC_S_INTERRUPTED) mean?

 
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TPC_S_TRUNCATED TPC_S_NO_DATA_TO_PROCESS

TPC_S_INTERRUPTED

Tablet PC recognition or training was interrupted

TPC_S_INTERRUPTED is HRESULT 262739 (0x00040253) from winerror.h. The documented description is “TabletPC inking error code; Recognition or training was interrupted.” The high-order severity bit is clear, so this is a success result, but it carries more information than plain S_OK.

The recognizer began work but recognition or training stopped before its normal completion.

Where the result is encountered

  • This result can appear in foreground or background ink recognition; record the producing interface and method.
  • This result can appear in user-canceled training; record the producing interface and method.
  • It can appear in application shutdown or stroke changes during recognition; record the producing interface and method.

State to verify

The central question is whether the caller distinguishes intentional cancellation from recognizer failure and knows whether any partial personalization data was committed.

Diagnostic sequence

  • Capture the raw HRESULT 0x00040253 immediately after the returning method and record whether the caller used SUCCEEDED, FAILED, equality testing, or exception translation.

Evidence to preserve

  • Preserve recognizer and context identity.
  • Preserve foreground versus background mode.
  • Preserve cancellation or shutdown source.
  • Preserve stroke collection generation.
  • Preserve completion event and partial result availability.

Correct handling, retry, and recovery

Discard or label incomplete results according to the recognizer contract. Restart recognition only when the ink snapshot is stable and the user still needs the operation.

Difference from nearby HRESULT values

TPC_S_NO_DATA_TO_PROCESS means no usable training input existed; it means work started and was stopped.

Practical validation scenario

A user edits strokes while background recognition is running. The application cancels the old context, receives it, and starts a new recognition pass against the updated stroke collection.

References

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