alias ShowErrorHookCallback

---

(alias) ShowErrorHookCallback = fun()

Run action at error reporting time.

This callback is run from inside the TeX error function, and the idea is to allow you to do some extra reporting on top of what TeX already does (none of the normal actions are removed). You may find some of the values in the status table useful. This callback does not replace any internal code.

Reference:

• Corresponding C source code: filename.c#L282
• Corresponding C source code: errors.c#L430

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