1wxBookCtrlEvent(3)         Erlang Module Definition         wxBookCtrlEvent(3)
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NAME

6       wxBookCtrlEvent - Functions for wxBookCtrlEvent class
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DESCRIPTION

9       This  class  represents  the events generated by book controls (wxNote‐
10       book, wxListbook, wxChoicebook, wxTreebook, wxAuiNotebook).
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12       The PAGE_CHANGING events are sent before the current page  is  changed.
13       It  allows  the  program  to examine the current page (which can be re‐
14       trieved with getOldSelection/1) and to veto the page change by  calling
15       wxNotifyEvent:veto/1  if,  for  example, the current values in the con‐
16       trols of the old page are invalid.
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18       The PAGE_CHANGED events are sent after the page has  been  changed  and
19       the  program cannot veto it any more, it just informs it about the page
20       change.
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22       To summarize, if the program is interested in validating the page  val‐
23       ues  before  allowing  the  user  to  change  it, it should process the
24       PAGE_CHANGING event, otherwise PAGE_CHANGED is probably enough. In  any
25       case, it is probably unnecessary to process both events at once.
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27       See:  wxNotebook, wxListbook, wxChoicebook, wxTreebook, wxToolbook, wx‐
28       AuiNotebook
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30       This class is derived (and can use functions) from:  wxNotifyEvent  wx‐
31       CommandEvent wxEvent
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33       wxWidgets docs: wxBookCtrlEvent
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DATA TYPES

36       wxBookCtrlEvent() = wx:wx_object()
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38       wxBookCtrl() =
39           #wxBookCtrl{type = wxBookCtrlEvent:wxBookCtrlEventType(),
40                       nSel = integer(),
41                       nOldSel = integer()}
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43       wxBookCtrlEventType() =
44           command_notebook_page_changed |
45           command_notebook_page_changing | choicebook_page_changed |
46           choicebook_page_changing | treebook_page_changed |
47           treebook_page_changing | toolbook_page_changed |
48           toolbook_page_changing | listbook_page_changed |
49           listbook_page_changing
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EXPORTS

52       getOldSelection(This) -> integer()
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54              Types:
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56                 This = wxBookCtrlEvent()
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58              Returns   the   page   that  was  selected  before  the  change,
59              wxNOT_FOUND if none was selected.
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61       getSelection(This) -> integer()
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63              Types:
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65                 This = wxBookCtrlEvent()
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67              Returns the currently selected page, or wxNOT_FOUND if none  was
68              selected.
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70              Note:  under  Windows, getSelection/1 will return the same value
71              as   getOldSelection/1   when   called   from   the   EVT_BOOKC‐
72              TRL_PAGE_CHANGING  handler and not the page which is going to be
73              selected.
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75       setOldSelection(This, Page) -> ok
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77              Types:
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79                 This = wxBookCtrlEvent()
80                 Page = integer()
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82              Sets the id of the page selected before the change.
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84       setSelection(This, Page) -> ok
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86              Types:
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88                 This = wxBookCtrlEvent()
89                 Page = integer()
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91              Sets the selection member variable.
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95wxWidgets team.                    wx 2.2.1                 wxBookCtrlEvent(3)