526954c596
Use "wxWindows licence" and not "wxWidgets licence" (the latter doesn't exist) and consistently spell "licence" using British spelling. See #12165. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64940 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
254 lines
8.6 KiB
C
254 lines
8.6 KiB
C
/////////////////////////////////////////////////////////////////////////////
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// Name: commondialogs.h
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// Purpose: topic overview
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// Author: wxWidgets team
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// RCS-ID: $Id$
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/**
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@page overview_cmndlg Common Dialogs
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Classes:
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@li wxColourDialog
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@li wxFontDialog
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@li wxPrintDialog
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@li wxFileDialog
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@li wxDirDialog
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@li wxTextEntryDialog
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@li wxPasswordEntryDialog
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@li wxMessageDialog
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@li wxSingleChoiceDialog
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@li wxMultiChoiceDialog
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Common dialog classes and functions encapsulate commonly-needed dialog box
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requirements. They are all 'modal', grabbing the flow of control until the user
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dismisses the dialog, to make them easy to use within an application.
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Some dialogs have both platform-dependent and platform-independent
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implementations, so that if underlying windowing systems do not provide the
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required functionality, the generic classes and functions can stand in. For
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example, under MS Windows, wxColourDialog uses the standard colour selector.
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There is also an equivalent called wxGenericColourDialog for other platforms,
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and a macro defines wxColourDialog to be the same as wxGenericColourDialog on
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non-MS Windows platforms. However, under MS Windows, the generic dialog can
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also be used, for testing or other purposes.
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@li @ref overview_cmndlg_colour
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@li @ref overview_cmndlg_font
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@li @ref overview_cmndlg_print
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@li @ref overview_cmndlg_file
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@li @ref overview_cmndlg_dir
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@li @ref overview_cmndlg_textentry
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@li @ref overview_cmndlg_password
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@li @ref overview_cmndlg_msg
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@li @ref overview_cmndlg_singlechoice
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@li @ref overview_cmndlg_multichoice
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<hr>
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@section overview_cmndlg_colour wxColourDialog Overview
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Classes: wxColourDialog, wxColourData
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The wxColourDialog presents a colour selector to the user, and returns with
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colour information.
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@subsection overview_cmndlg_colour_msw The MS Windows Colour Selector
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Under Windows, the native colour selector common dialog is used. This presents
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a dialog box with three main regions: at the top left, a palette of 48
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commonly-used colours is shown. Under this, there is a palette of 16
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'custom colours' which can be set by the application if desired. Additionally,
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the user may open up the dialog box to show a right-hand panel containing
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controls to select a precise colour, and add it to the custom colour palette.
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@subsection overview_cmndlg_colour_generic The Generic Colour Selector
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Under non-MS Windows platforms, the colour selector is a simulation of most of
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the features of the MS Windows selector. Two palettes of 48 standard and 16
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custom colours are presented, with the right-hand area containing three sliders
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for the user to select a colour from red, green and blue components. This
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colour may be added to the custom colour palette, and will replace either the
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currently selected custom colour, or the first one in the palette if none is
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selected. The RGB colour sliders are not optional in the generic colour
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selector. The generic colour selector is also available under MS Windows; use
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the name wxGenericColourDialog.
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@subsection overview_cmndlg_colour_example Example
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In the samples/dialogs directory, there is an example of using the
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wxColourDialog class. Here is an excerpt, which sets various parameters of a
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wxColourData object, including a grey scale for the custom colours. If the user
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did not cancel the dialog, the application retrieves the selected colour and
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uses it to set the background of a window.
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@code
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wxColourData data;
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data.SetChooseFull(true);
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for (int i = 0; i < 16; i++)
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{
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wxColour colour(i*16, i*16, i*16);
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data.SetCustomColour(i, colour);
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}
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wxColourDialog dialog(this, &data);
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if (dialog.ShowModal() == wxID_OK)
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{
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wxColourData retData = dialog.GetColourData();
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wxColour col = retData.GetColour();
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wxBrush brush(col, wxSOLID);
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myWindow->SetBackground(brush);
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myWindow->Clear();
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myWindow->Refresh();
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}
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@endcode
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@section overview_cmndlg_font wxFontDialog Overview
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Classes: wxFontDialog, wxFontData
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The wxFontDialog presents a font selector to the user, and returns with font
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and colour information.
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@subsection overview_cmndlg_font_msw The MS Windows Font Selector
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Under Windows, the native font selector common dialog is used. This presents a
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dialog box with controls for font name, point size, style, weight, underlining,
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strikeout and text foreground colour. A sample of the font is shown on a white
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area of the dialog box. Note that in the translation from full MS Windows fonts
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to wxWidgets font conventions, strikeout is ignored and a font family (such as
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Swiss or Modern) is deduced from the actual font name (such as Arial or
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Courier).
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@subsection overview_cmndlg_font_generic The Generic Font Selector
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Under non-MS Windows platforms, the font selector is simpler. Controls for font
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family, point size, style, weight, underlining and text foreground colour are
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provided, and a sample is shown upon a white background. The generic font
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selector is also available under MS Windows; use the name wxGenericFontDialog.
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@subsection overview_cmndlg_font_example Example
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In the samples/dialogs directory, there is an example of using the wxFontDialog
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class. The application uses the returned font and colour for drawing text on a
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canvas. Here is an excerpt:
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@code
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wxFontData data;
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data.SetInitialFont(canvasFont);
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data.SetColour(canvasTextColour);
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wxFontDialog dialog(this, &data);
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if (dialog.ShowModal() == wxID_OK)
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{
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wxFontData retData = dialog.GetFontData();
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canvasFont = retData.GetChosenFont();
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canvasTextColour = retData.GetColour();
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myWindow->Refresh();
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}
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@endcode
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@section overview_cmndlg_print wxPrintDialog Overview
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Classes: wxPrintDialog, wxPrintData
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This class represents the print and print setup common dialogs. You may obtain
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a wxPrinterDC device context from a successfully dismissed print dialog.
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The samples/printing example shows how to use it: see @ref overview_printing
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for an excerpt from this example.
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@section overview_cmndlg_file wxFileDialog Overview
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Classes: wxFileDialog
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Pops up a file selector box. On Windows and GTK 2.4+, this is the common file
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selector dialog. In X, this is a file selector box with somewhat less
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functionality. The path and filename are distinct elements of a full file
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pathname.
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If path is "", the current directory will be used. If filename is "", no
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default filename will be supplied. The wildcard determines what files are
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displayed in the file selector, and file extension supplies a type extension
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for the required filename. Flags may be a combination of wxFD_OPEN, wxFD_SAVE,
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wxFD_OVERWRITE_PROMPT, wxFD_HIDE_READONLY, wxFD_FILE_MUST_EXIST, wxFD_MULTIPLE,
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wxFD_CHANGE_DIR or 0.
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Both the X and Windows versions implement a wildcard filter. Typing a filename
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containing wildcards (*, ?) in the filename text item, and clicking on Ok, will
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result in only those files matching the pattern being displayed. In the X
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version, supplying no default name will result in the wildcard filter being
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inserted in the filename text item; the filter is ignored if a default name is
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supplied.
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The wildcard may be a specification for multiple types of file with a
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description for each, such as:
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@verbatim
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"BMP files (*.bmp)|*.bmp|GIF files (*.gif)|*.gif"
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@endverbatim
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@section overview_cmndlg_dir wxDirDialog Overview
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Classes: wxDirDialog
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This dialog shows a directory selector dialog, allowing the user to select a
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single directory.
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@section overview_cmndlg_textentry wxTextEntryDialog Overview
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Classes: wxTextEntryDialog
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This is a dialog with a text entry field. The value that the user entered is
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obtained using wxTextEntryDialog::GetValue().
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@section overview_cmndlg_password wxPasswordEntryDialog Overview
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Classes: wxPasswordEntryDialog
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This is a dialog with a password entry field. The value that the user entered
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is obtained using wxTextEntryDialog::GetValue().
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@section overview_cmndlg_msg wxMessageDialog Overview
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Classes: wxMessageDialog
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This dialog shows a message, plus buttons that can be chosen from OK, Cancel,
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Yes, and No. Under Windows, an optional icon can be shown, such as an
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exclamation mark or question mark.
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The return value of wxMessageDialog::ShowModal() indicates which button the
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user pressed.
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@section overview_cmndlg_singlechoice wxSingleChoiceDialog Overview
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Classes: wxSingleChoiceDialog
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This dialog shows a list of choices, plus OK and (optionally) Cancel. The user
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can select one of them. The selection can be obtained from the dialog as an
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index, a string or client data.
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@section overview_cmndlg_multichoice wxMultiChoiceDialog Overview
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Classes: wxMultiChoiceDialog
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This dialog shows a list of choices, plus OK and (optionally) Cancel. The user
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can select one or more of them.
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*/
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