\section{\class{wxDialog}}\label{wxdialog}
-A dialog box is a window with a title bar and sometimes a system menu, which can be moved around
-the screen. It can contain controls and other windows.
+A dialog box is a window with a title bar and sometimes a system menu, which
+can be moved around the screen. It can contain controls and other windows and
+is usually used to allow the user to make some choice or to answer a question.
\wxheading{Derived from}
-\helpref{wxPanel}{wxpanel}\\
+\helpref{wxTopLevelWindow}{wxtoplevelwindow}\\
\helpref{wxWindow}{wxwindow}\\
\helpref{wxEvtHandler}{wxevthandler}\\
\helpref{wxObject}{wxobject}
\wxheading{Remarks}
-There are two kinds of dialog - {\it modal} and {\it modeless}. A modal dialog
-blocks program flow and user input on other windows until it is dismissed, whereas a modeless dialog behaves more
-like a frame in that program flow continues, and input on other windows is still possible.
-You specify the type of dialog with the {\bf wxDIALOG\_MODAL} and {\bf wxDIALOG\_MODELESS} window
-styles.
-
-A dialog may be loaded from a wxWindows resource file (extension {\tt wxr}), which may itself
-be created by Dialog Editor. For details,
-see \helpref{The wxWindows resource system}{resourceformats}, \helpref{wxWindows resource functions}{resourcefuncs} and
-the resource sample.
-
-An application can define an \helpref{wxCloseEvent}{wxcloseevent} handler for the
-dialog to respond to system close events.
+There are two kinds of dialog -- {\it modal}\ and {\it modeless}. A modal dialog
+blocks program flow and user input on other windows until it is dismissed,
+whereas a modeless dialog behaves more like a frame in that program flow
+continues, and input in other windows is still possible. To show a modal dialog
+you should use the \helpref{ShowModal}{wxdialogshowmodal} method while to show
+a dialog modelessly you simply use \helpref{Show}{wxdialogshow}, just as with
+frames.
+
+Note that the modal dialog is one of the very few examples of
+wxWindow-derived objects which may be created on the stack and not on the heap.
+In other words, although this code snippet:
+
+\begin{verbatim}
+ void AskUser()
+ {
+ MyAskDialog *dlg = new MyAskDialog(...);
+ if ( dlg->ShowModal() == wxID_OK )
+ ...
+ //else: dialog was cancelled or some another button pressed
+
+ dlg->Destroy();
+ }
+\end{verbatim}
+
+works, you can also achieve the same result by using a simpler code fragment
+below:
+
+\begin{verbatim}
+ void AskUser()
+ {
+ MyAskDialog dlg(...);
+ if ( dlg.ShowModal() == wxID_OK )
+ ...
+
+ // no need to call Destroy() here
+ }
+\end{verbatim}
+
+An application can define a \helpref{wxCloseEvent}{wxcloseevent} handler for
+the dialog to respond to system close events.
\wxheading{Window styles}
\twocolwidtha{5cm}
\begin{twocollist}\itemsep=0pt
-\twocolitem{\windowstyle{wxDIALOG\_MODAL}}{Specifies that the dialog box will be modal.}
\twocolitem{\windowstyle{wxCAPTION}}{Puts a caption on the dialog box.}
-\twocolitem{\windowstyle{wxDEFAULT\_DIALOG\_STYLE}}{Equivalent to a combination of wxCAPTION, wxSYSTEM\_MENU and wxTHICK\_FRAME}
+\twocolitem{\windowstyle{wxDEFAULT\_DIALOG\_STYLE}}{Equivalent to a combination of wxCAPTION, wxCLOSE\_BOX and wxSYSTEM\_MENU (the last one is not used under Unix)}
\twocolitem{\windowstyle{wxRESIZE\_BORDER}}{Display a resizeable frame around the window.}
\twocolitem{\windowstyle{wxSYSTEM\_MENU}}{Display a system menu.}
+\twocolitem{\windowstyle{wxCLOSE\_BOX}}{Displays a close box on the frame.}
+\twocolitem{\windowstyle{wxMAXIMIZE\_BOX}}{Displays a maximize box on the dialog.}
+\twocolitem{\windowstyle{wxMINIMIZE\_BOX}}{Displays a minimize box on the dialog.}
\twocolitem{\windowstyle{wxTHICK\_FRAME}}{Display a thick frame around the window.}
\twocolitem{\windowstyle{wxSTAY\_ON\_TOP}}{The dialog stays on top of all other windows (Windows only).}
\twocolitem{\windowstyle{wxNO\_3D}}{Under Windows, specifies that the child controls
should not have 3D borders unless specified in the control.}
-\twocolitem{\windowstyle{wxDIALOG\_NO\_PARENT}}{By default, the dialogs created
-with {\tt NULL} parent window will be given the
-\helpref{applications top level window}{wxappgettopwindow} as parent. Use this
-style to prevent this from happening and create a really orphan dialog (note
-that this is not recommended for modal dialogs).}
+\twocolitem{\windowstyle{wxDIALOG\_NO\_PARENT}}{By default, a dialog created
+with a {\tt NULL} parent window will be given the
+\helpref{application's top level window}{wxappgettopwindow} as parent. Use this
+style to prevent this from happening and create an orphan dialog. This is not recommended for modal dialogs.}
\twocolitem{\windowstyle{wxDIALOG\_EX\_CONTEXTHELP}}{Under Windows, puts a query button on the
-caption. When pressed, Windows will go into a context-sensitive help mode and wxWindows will send
-a wxEVT\_HELP event if the user clicked on an application window. {\it Note} that this is an extended
+caption. When pressed, Windows will go into a context-sensitive help mode and wxWidgets will send
+a wxEVT\_HELP event if the user clicked on an application window. {\it Note}\ that this is an extended
style and must be set by calling \helpref{SetExtraStyle}{wxwindowsetextrastyle} before Create is called (two-step construction).}
\end{twocollist}
\wxheading{See also}
-\helpref{wxDialog overview}{wxdialogoverview}, \helpref{wxFrame}{wxframe}, \helpref{Resources}{resources},\rtfsp
+\helpref{wxDialog overview}{wxdialogoverview}, \helpref{wxFrame}{wxframe},\rtfsp
\helpref{Validator overview}{validatoroverview}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxDialog::wxDialog}\label{wxdialogconstr}
+\membersection{wxDialog::wxDialog}\label{wxdialogctor}
\func{}{wxDialog}{\void}
\docparam{title}{The title of the dialog.}
\docparam{pos}{The dialog position. A value of (-1, -1) indicates a default position, chosen by
-either the windowing system or wxWindows, depending on platform.}
+either the windowing system or wxWidgets, depending on platform.}
\docparam{size}{The dialog size. A value of (-1, -1) indicates a default size, chosen by
-either the windowing system or wxWindows, depending on platform.}
+either the windowing system or wxWidgets, depending on platform.}
\docparam{style}{The window style. See \helpref{wxDialog}{wxdialog}.}
\helpref{wxDialog::Create}{wxdialogcreate}
-\membersection{wxDialog::\destruct{wxDialog}}
+\membersection{wxDialog::\destruct{wxDialog}}\label{wxdialogdtor}
\func{}{\destruct{wxDialog}}{\void}
\param{long}{ style = wxDEFAULT\_DIALOG\_STYLE},\rtfsp
\param{const wxString\& }{name = ``dialogBox"}}
-Used for two-step dialog box construction. See \helpref{wxDialog::wxDialog}{wxdialogconstr}\rtfsp
+Used for two-step dialog box construction. See \helpref{wxDialog::wxDialog}{wxdialogctor}\rtfsp
for details.
\membersection{wxDialog::EndModal}\label{wxdialogendmodal}
\wxheading{Parameters}
-\docparam{iconize}{If TRUE, iconizes the dialog box; if FALSE, shows and restores it.}
+\docparam{iconize}{If true, iconizes the dialog box; if false, shows and restores it.}
\wxheading{Remarks}
Note that in Windows, iconization has no effect since dialog boxes cannot be
iconized. However, applications may need to explicitly restore dialog
boxes under Motif which have user-iconizable frames, and under Windows
-calling {\tt Iconize(FALSE)} will bring the window to the front, as does
-\rtfsp{\tt Show(TRUE)}.
+calling {\tt Iconize(false)} will bring the window to the front, as does
+\rtfsp{\tt Show(true)}.
\membersection{wxDialog::IsIconized}\label{wxdialogisiconized}
\constfunc{bool}{IsIconized}{\void}
-Returns TRUE if the dialog box is iconized. Windows only.
+Returns true if the dialog box is iconized. Windows only.
\wxheading{Remarks}
-Always returns FALSE under Windows since dialogs cannot be iconized.
+Always returns false under Windows since dialogs cannot be iconized.
\membersection{wxDialog::IsModal}\label{wxdialogismodal}
\constfunc{bool}{IsModal}{\void}
-Returns TRUE if the dialog box is modal, FALSE otherwise.
-
-\membersection{wxDialog::OnCharHook}\label{wxdialogoncharhook}
-
-\func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
-
-This member is called to allow the window to intercept keyboard events
-before they are processed by child windows.
-
-%For more information, see \helpref{wxWindow::OnCharHook}{wxwindowoncharhook}
-
-\wxheading{Remarks}
-
-wxDialog implements this handler to fake a cancel command if the escape key has been
-pressed. This will dismiss the dialog.
+Returns true if the dialog box is modal, false otherwise.
\membersection{wxDialog::OnApply}\label{wxdialogonapply}
\wxheading{Remarks}
The function either calls {\bf EndModal(wxID\_CANCEL)} if the dialog is modal, or
-sets the return value to wxID\_CANCEL and calls {\bf Show(FALSE)} if the dialog is modeless.
+sets the return value to wxID\_CANCEL and calls {\bf Show(false)} if the dialog is modeless.
\wxheading{See also}
The function calls
\rtfsp\helpref{wxWindow::Validate}{wxwindowvalidate}, then \helpref{wxWindow::TransferDataFromWindow}{wxwindowtransferdatafromwindow}.
-If this returns TRUE, the function either calls {\bf EndModal(wxID\_OK)} if the dialog is modal, or
-sets the return value to wxID\_OK and calls {\bf Show(FALSE)} if the dialog is modeless.
+If this returns true, the function either calls {\bf EndModal(wxID\_OK)} if the dialog is modal, or
+sets the return value to wxID\_OK and calls {\bf Show(false)} if the dialog is modeless.
\wxheading{See also}
\wxheading{Parameters}
-\docparam{flag}{If TRUE, the dialog will be modal, otherwise it will be modeless.}
+\docparam{flag}{If true, the dialog will be modal, otherwise it will be modeless.}
\membersection{wxDialog::SetReturnCode}\label{wxdialogsetreturncode}
\wxheading{Parameters}
-\docparam{show}{If TRUE, the dialog box is shown and brought to the front;
-otherwise the box is hidden. If FALSE and the dialog is
+\docparam{show}{If true, the dialog box is shown and brought to the front;
+otherwise the box is hidden. If false and the dialog is
modal, control is returned to the calling program.}
\wxheading{Remarks}
projects / wxWidgets.git / blobdiff