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# wxAuiNotebookEvent (wx v2.4.3.1)

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This class is used by the events generated by `wxAuiNotebook`.

See:

- `wxAuiNotebook`

- `wxBookCtrlEvent`

This class is derived, and can use functions, from:

- `wxBookCtrlEvent`

- `wxNotifyEvent`

- `wxCommandEvent`

- `wxEvent`

wxWidgets docs: wxAuiNotebookEvent

## Events

Use `wxEvtHandler:connect/3` with `wxAuiNotebookEventType` to subscribe to events of this type.

# Summary

## Types

wxAuiNotebook()
wxAuiNotebookEvent()
wxAuiNotebookEventType()

## Functions

getDragSource(This)
getOldSelection(This)

Returns the page that was selected before the change, `wxNOT\_FOUND` if none was selected.

getSelection(This)

Returns the currently selected page, or `wxNOT\_FOUND` if none was selected.

setDragSource(This, S)
setOldSelection(This, Page)

Sets the id of the page selected before the change.

setSelection(This, Page)

Sets the selection member variable.

# Types

# wxAuiNotebook()

    -type wxAuiNotebook() ::
              #wxAuiNotebook{type :: wxAuiNotebookEvent:wxAuiNotebookEventType(),
                             old_selection :: integer(),
                             selection :: integer(),
                             drag_source :: wxAuiNotebook:wxAuiNotebook()}.

# wxAuiNotebookEvent()

    -type wxAuiNotebookEvent() :: wx:wx_object().

# wxAuiNotebookEventType()

    -type wxAuiNotebookEventType() ::
              command_auinotebook_page_close | command_auinotebook_page_changed |
              command_auinotebook_page_changing | command_auinotebook_button |
              command_auinotebook_begin_drag | command_auinotebook_end_drag |
              command_auinotebook_drag_motion | command_auinotebook_allow_dnd |
              command_auinotebook_tab_middle_down | command_auinotebook_tab_middle_up |
              command_auinotebook_tab_right_down | command_auinotebook_tab_right_up |
              command_auinotebook_page_closed | command_auinotebook_drag_done |
              command_auinotebook_bg_dclick.

# Functions

# getDragSource(This)

    -spec getDragSource(This) -> wxAuiNotebook:wxAuiNotebook() when This :: wxAuiNotebookEvent().

# getOldSelection(This)

    -spec getOldSelection(This) -> integer() when This :: wxAuiNotebookEvent().

Returns the page that was selected before the change, `wxNOT\_FOUND` if none was selected.

# getSelection(This)

    -spec getSelection(This) -> integer() when This :: wxAuiNotebookEvent().

Returns the currently selected page, or `wxNOT\_FOUND` if none was selected.

Note: under Windows, `getSelection/1` will return the same value as `getOldSelection/1` when called from the `EVT_BOOKCTRL_PAGE_CHANGING` handler and not the page which is going to be selected.

# setDragSource(This, S)

    -spec setDragSource(This, S) -> ok when This :: wxAuiNotebookEvent(), S :: wxAuiNotebook:wxAuiNotebook().

# setOldSelection(This, Page)

    -spec setOldSelection(This, Page) -> ok when This :: wxAuiNotebookEvent(), Page :: integer().

Sets the id of the page selected before the change.

# setSelection(This, Page)

    -spec setSelection(This, Page) -> ok when This :: wxAuiNotebookEvent(), Page :: integer().

Sets the selection member variable.