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1 | \section{\class{wxNotebookEvent}}\label{wxnotebookevent} | |
2 | ||
3 | This class represents the events generated by a notebook control: currently, | |
4 | there are two of them. The PAGE\_CHANGING event is sent before the current | |
5 | page is changed. It allows to the program to examine the current page (which | |
6 | can be retrieved with | |
7 | \helpref{GetOldSelection()}{wxnotebookeventgetoldselection}) and to veto the page | |
8 | change by calling \helpref{Veto()}{wxnotifyeventveto} if, for example, the | |
9 | current values in the controls of the old page are invalid. | |
10 | ||
11 | The second event - PAGE\_CHANGED - is sent after the page has been changed and | |
12 | the program cannot veto it any more, it just informs it about the page change. | |
13 | ||
14 | To summarize, if the program is interested in validating the page values | |
15 | before allowing the user to change it, it should process the PAGE\_CHANGING | |
16 | event, otherwise PAGE\_CHANGED is probably enough. In any case, it is probably | |
17 | unnecessary to process both events at once. | |
18 | ||
19 | \wxheading{Derived from} | |
20 | ||
21 | \helpref{wxNotifyEvent}{wxnotifyevent}\\ | |
22 | \helpref{wxCommandEvent}{wxcommandevent}\\ | |
23 | \helpref{wxEvent}{wxevent}\\ | |
24 | \helpref{wxObject}{wxobject} | |
25 | ||
26 | \wxheading{Include files} | |
27 | ||
28 | <wx/notebook.h> | |
29 | ||
30 | \input noteevt.inc | |
31 | ||
32 | \wxheading{See also} | |
33 | ||
34 | \helpref{wxNotebook}{wxnotebook}, \helpref{wxTabCtrl}{wxtabctrl}, \helpref{wxTabEvent}{wxtabevent} | |
35 | ||
36 | \latexignore{\rtfignore{\wxheading{Members}}} | |
37 | ||
38 | \membersection{wxNotebookEvent::wxNotebookEvent}\label{wxnotebookeventconstr} | |
39 | ||
40 | \func{}{wxNotebookEvent}{\param{wxEventType}{ eventType = wxEVT\_NULL}, | |
41 | \param{int}{ id = 0}, \param{int}{ sel = $-1$}, \param{int}{ oldSel = $-1$}} | |
42 | ||
43 | Constructor (used internally by wxWidgets only). | |
44 | ||
45 | \membersection{wxNotebookEvent::GetOldSelection}\label{wxnotebookeventgetoldselection} | |
46 | ||
47 | \constfunc{int}{GetOldSelection}{\void} | |
48 | ||
49 | Returns the page that was selected before the change, $-1$ if none was selected. | |
50 | ||
51 | \membersection{wxNotebookEvent::GetSelection}\label{wxnotebookeventgetselection} | |
52 | ||
53 | \constfunc{int}{GetSelection}{\void} | |
54 | ||
55 | Returns the currently selected page, or $-1$ if none was selected. | |
56 | ||
57 | {\bf NB:} under Windows, GetSelection() will return the same value as\rtfsp | |
58 | \helpref{GetOldSelection()}{wxnotebookeventgetoldselection} when called from | |
59 | {\tt EVT\_NOTEBOOK\_PAGE\_CHANGING} handler and not the page which is going to | |
60 | be selected. | |
61 | ||
62 | \membersection{wxNotebookEvent::SetOldSelection}\label{wxnotebookeventsetoldselection} | |
63 | ||
64 | \func{void}{SetOldSelection}{\param{int}{ page}} | |
65 | ||
66 | Sets the id of the page selected before the change. | |
67 | ||
68 | \membersection{wxNotebookEvent::SetSelection}\label{wxnotebookeventsetselection} | |
69 | ||
70 | \func{void}{SetSelection}{\param{int}{ page}} | |
71 | ||
72 | Sets the selection member variable. | |
73 | ||
74 | \wxheading{See also} | |
75 | ||
76 | \helpref{wxNotebookEvent::GetSelection}{wxnotebookeventgetselection} | |
77 | ||
78 |