1wxComboBox(3)              Erlang Module Definition              wxComboBox(3)
2
3
4

NAME

6       wxComboBox - Functions for wxComboBox class
7

DESCRIPTION

9       A combobox is like a combination of an edit control and a listbox.
10
11       It  can  be  displayed  as  static list with editable or read-only text
12       field; or a drop-down list with text field; or a drop-down list without
13       a  text  field  depending on the platform and presence of wxCB_READONLY
14       style.
15
16       A combobox permits a single selection only. Combobox items are numbered
17       from zero.
18
19       If  you need a customized combobox, have a look at wxComboCtrl (not im‐
20       plemented in wx), wxOwnerDrawnComboBox (not implemented in wx),  wxCom‐
21       boPopup  (not  implemented in wx) and the ready-to-use wxBitmapComboBox
22       (not implemented in wx).
23
24       Please refer to wxTextEntry (not implemented in wx)  documentation  for
25       the  description  of  methods operating with the text entry part of the
26       combobox and to wxItemContainer (not implemented in wx) for the methods
27       operating  with the list of strings. Notice that at least under MSW wx‐
28       ComboBox doesn't behave correctly if it contains strings  differing  in
29       case only so portable programs should avoid adding such strings to this
30       control.
31
32       Styles
33
34       This class supports the following styles:
35
36       See: wxListBox, wxTextCtrl, wxChoice, wxCommandEvent
37
38       This class is derived (and can use functions) from:  wxControlWithItems
39       wxControl wxWindow wxEvtHandler
40
41       wxWidgets docs: wxComboBox
42

EVENTS

44       Event  types  emitted  from this class: command_combobox_selected, com‐
45       mand_text_updated,    command_text_enter,    combobox_dropdown,    com‐
46       bobox_closeup
47

DATA TYPES

49       wxComboBox() = wx:wx_object()
50

EXPORTS

52       new() -> wxComboBox()
53
54              Default constructor.
55
56       new(Parent, Id) -> wxComboBox()
57
58              Types:
59
60                 Parent = wxWindow:wxWindow()
61                 Id = integer()
62
63       new(Parent, Id, Options :: [Option]) -> wxComboBox()
64
65              Types:
66
67                 Parent = wxWindow:wxWindow()
68                 Id = integer()
69                 Option =
70                     {value, unicode:chardata()} |
71                     {pos, {X :: integer(), Y :: integer()}} |
72                     {size, {W :: integer(), H :: integer()}} |
73                     {choices, [unicode:chardata()]} |
74                     {style, integer()} |
75                     {validator, wx:wx_object()}
76
77              Constructor, creating and showing a combobox.
78
79              See: create/8, wxValidator (not implemented in wx)
80
81       destroy(This :: wxComboBox()) -> ok
82
83              Destructor, destroying the combobox.
84
85       create(This, Parent, Id, Value, Pos, Size, Choices) -> boolean()
86
87              Types:
88
89                 This = wxComboBox()
90                 Parent = wxWindow:wxWindow()
91                 Id = integer()
92                 Value = unicode:chardata()
93                 Pos = {X :: integer(), Y :: integer()}
94                 Size = {W :: integer(), H :: integer()}
95                 Choices = [unicode:chardata()]
96
97       create(This, Parent, Id, Value, Pos, Size, Choices,
98              Options :: [Option]) ->
99                 boolean()
100
101              Types:
102
103                 This = wxComboBox()
104                 Parent = wxWindow:wxWindow()
105                 Id = integer()
106                 Value = unicode:chardata()
107                 Pos = {X :: integer(), Y :: integer()}
108                 Size = {W :: integer(), H :: integer()}
109                 Choices = [unicode:chardata()]
110                 Option = {style, integer()} | {validator, wx:wx_object()}
111
112       canCopy(This) -> boolean()
113
114              Types:
115
116                 This = wxComboBox()
117
118              Returns true if the selection can be copied to the clipboard.
119
120       canCut(This) -> boolean()
121
122              Types:
123
124                 This = wxComboBox()
125
126              Returns true if the selection can be cut to the clipboard.
127
128       canPaste(This) -> boolean()
129
130              Types:
131
132                 This = wxComboBox()
133
134              Returns true if the contents of the clipboard can be pasted into
135              the text control.
136
137              On some platforms (Motif, GTK) this is an approximation and  re‐
138              turns true if the control is editable, false otherwise.
139
140       canRedo(This) -> boolean()
141
142              Types:
143
144                 This = wxComboBox()
145
146              Returns  true if there is a redo facility available and the last
147              operation can be redone.
148
149       canUndo(This) -> boolean()
150
151              Types:
152
153                 This = wxComboBox()
154
155              Returns true if there is an undo facility available and the last
156              operation can be undone.
157
158       copy(This) -> ok
159
160              Types:
161
162                 This = wxComboBox()
163
164              Copies the selected text to the clipboard.
165
166       cut(This) -> ok
167
168              Types:
169
170                 This = wxComboBox()
171
172              Copies  the  selected  text to the clipboard and removes it from
173              the control.
174
175       getInsertionPoint(This) -> integer()
176
177              Types:
178
179                 This = wxComboBox()
180
181              Same as wxTextCtrl:getInsertionPoint/1.
182
183              Note: Under wxMSW, this function always returns 0  if  the  com‐
184              bobox doesn't have the focus.
185
186       getLastPosition(This) -> integer()
187
188              Types:
189
190                 This = wxComboBox()
191
192              Returns  the  zero  based index of the last position in the text
193              control, which is equal to the number of characters in the  con‐
194              trol.
195
196       getValue(This) -> unicode:charlist()
197
198              Types:
199
200                 This = wxComboBox()
201
202              Gets the contents of the control.
203
204              Notice that for a multiline text control, the lines will be sep‐
205              arated by (Unix-style) \n characters, even under  Windows  where
206              they are separated by a \r\n sequence in the native control.
207
208       paste(This) -> ok
209
210              Types:
211
212                 This = wxComboBox()
213
214              Pastes text from the clipboard to the text item.
215
216       redo(This) -> ok
217
218              Types:
219
220                 This = wxComboBox()
221
222              If  there  is  a redo facility and the last operation can be re‐
223              done, redoes the last operation.
224
225              Does nothing if there is no redo facility.
226
227       replace(This, From, To, Value) -> ok
228
229              Types:
230
231                 This = wxComboBox()
232                 From = To = integer()
233                 Value = unicode:chardata()
234
235              Replaces the text starting at the first position up to (but  not
236              including)  the  character  at  the last position with the given
237              text.
238
239              This function puts the current insertion point position at to as
240              a side effect.
241
242       remove(This, From, To) -> ok
243
244              Types:
245
246                 This = wxComboBox()
247                 From = To = integer()
248
249              Removes the text starting at the first given position up to (but
250              not including) the character at the last position.
251
252              This function puts the current insertion point position at to as
253              a side effect.
254
255       setInsertionPoint(This, Pos) -> ok
256
257              Types:
258
259                 This = wxComboBox()
260                 Pos = integer()
261
262              Sets the insertion point at the given position.
263
264       setInsertionPointEnd(This) -> ok
265
266              Types:
267
268                 This = wxComboBox()
269
270              Sets the insertion point at the end of the text control.
271
272              This  is equivalent to calling setInsertionPoint/2 with getLast‐
273              Position/1 argument.
274
275       setSelection(This, N) -> ok
276
277              Types:
278
279                 This = wxComboBox()
280                 N = integer()
281
282              Sets the selection to the given item n or removes the  selection
283              entirely if n == wxNOT_FOUND.
284
285              Note  that  this does not cause any command events to be emitted
286              nor does it deselect any other items in the controls which  sup‐
287              port multiple selections.
288
289              See:   wxControlWithItems:setString/3,   wxControlWithItems:set‐
290              StringSelection/2
291
292       setSelection(This, From, To) -> ok
293
294              Types:
295
296                 This = wxComboBox()
297                 From = To = integer()
298
299              Same as wxTextCtrl:setSelection/3.
300
301       setValue(This, Text) -> ok
302
303              Types:
304
305                 This = wxComboBox()
306                 Text = unicode:chardata()
307
308              Sets the text for the combobox text field.
309
310              For normal, editable comboboxes with a text entry field  calling
311              this  method will generate a wxEVT_TEXT event, consistently with
312              wxTextCtrl:setValue/2 behaviour, use wxTextCtrl:changeValue/2 if
313              this is undesirable.
314
315              For  controls  with wxCB_READONLY style the method behaves some‐
316              what differently: the string must be  in  the  combobox  choices
317              list  (the check for this is case-insensitive) and wxEVT_TEXT is
318              not generated in this case.
319
320       undo(This) -> ok
321
322              Types:
323
324                 This = wxComboBox()
325
326              If there is an undo facility and the last operation can  be  un‐
327              done, undoes the last operation.
328
329              Does nothing if there is no undo facility.
330
331
332
333wxWidgets team.                    wx 2.2.1                      wxComboBox(3)