wxWidgets: Standard Event Identifiers

| Version: 3.0.5

Standard Event Identifiers

wxWidgets defines a special identifier value `wxID_ANY` which is used in the following two situations:

- when creating a new window you may specify `wxID_ANY` to let wxWidgets assign an unused identifier to it automatically
- when installing an event handler using either the event table macros or wxEvtHandler::Connect, you may use it to indicate that you want to handle the events coming from any control, regardless of its identifier

Another standard special identifier value is `wxID_NONE:` this is a value which is not matched by any other id.

wxWidgets also defines a few standard command identifiers which may be used by the user code and also are sometimes used by wxWidgets itself. These reserved identifiers are all in the range between `wxID_LOWEST` and `wxID_HIGHEST` and, accordingly, the user code should avoid defining its own constants in this range (e.g. by using wxNewId()).

Refer to the list of stock items for the subset of standard IDs which are stock IDs as well.