Added DetachOldLog to avoid destruction of old log target

[wxWidgets.git] / docs / latex / wx / msgdlg.tex

\section{\class{wxMessageDialog}}\label{wxmessagedialog}

This class represents a dialog that shows a single or multi-line message,
with a choice of OK, Yes, No and Cancel buttons.

\wxheading{Derived from}

\helpref{wxDialog}{wxdialog}\\
\helpref{wxWindow}{wxwindow}\\
\helpref{wxEvtHandler}{wxevthandler}\\
\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/msgdlg.h>

\wxheading{See also}

\helpref{wxMessageDialog overview}{wxmessagedialogoverview}

\latexignore{\rtfignore{\wxheading{Members}}}


\membersection{wxMessageDialog::wxMessageDialog}\label{wxmessagedialogctor}

\func{}{wxMessageDialog}{\param{wxWindow* }{parent}, \param{const wxString\& }{message},\rtfsp
\param{const wxString\& }{caption = "Message box"}, \param{long }{style = wxOK \pipe wxCANCEL},\rtfsp
\param{const wxPoint\& }{pos = wxDefaultPosition}}

Constructor. Use \helpref{wxMessageDialog::ShowModal}{wxmessagedialogshowmodal} to show the dialog.

\wxheading{Parameters}

\docparam{parent}{Parent window.}

\docparam{message}{Message to show on the dialog.}

\docparam{caption}{The dialog caption.}

\docparam{style}{A dialog style (bitlist) containing flags chosen from the following:

\twocolwidtha{5cm}
\begin{twocollist}
\twocolitem{{\bf wxOK}}{Show an OK button.}
\twocolitem{{\bf wxCANCEL}}{Show a Cancel button.}
\twocolitem{{\bf wxYES\_NO}}{Show Yes and No buttons.}
\twocolitem{{\bf wxYES\_DEFAULT}}{Used with {\bf wxYES\_NO}, makes {\bf Yes} button the default - which is the default behaviour.}
\twocolitem{{\bf wxNO\_DEFAULT}}{Used with {\bf wxYES\_NO}, makes {\bf No} button the default.}
\twocolitem{{\bf wxICON\_EXCLAMATION}}{Shows an exclamation mark icon.}
\twocolitem{{\bf wxICON\_HAND}}{Shows an error icon.}
\twocolitem{{\bf wxICON\_ERROR}}{Shows an error icon - the same as wxICON\_HAND.}
\twocolitem{{\bf wxICON\_QUESTION}}{Shows a question mark icon.}
\twocolitem{{\bf wxICON\_INFORMATION}}{Shows an information (i) icon.}
\twocolitem{{\bf wxSTAY\_ON\_TOP}}{The message box stays on top of all other window, even those of the other applications (Windows only).}
\end{twocollist}
}

\docparam{pos}{Dialog position. Not Windows.}


\membersection{wxMessageDialog::\destruct{wxMessageDialog}}\label{wxmessagedialogdtor}

\func{}{\destruct{wxMessageDialog}}{\void}

Destructor.


\membersection{wxMessageDialog::ShowModal}\label{wxmessagedialogshowmodal}

\func{int}{ShowModal}{\void}

Shows the dialog, returning one of wxID\_OK, wxID\_CANCEL, wxID\_YES, wxID\_NO.


\membersection{wxMessageDialog::SetYesNoLabels}\label{wxmessagedialogsetyesnolabels}

\func{bool}{SetYesNoLabels}{\param{const wxString&}{yes},\param{const wxString&}{no}}

Overrides the default labels of the Yes and No buttons.

Notice that this function is not currently available on all platforms, so it
may return \false to indicate that the labels couldn't be changed. If it
returns \true (currently only under wxMac), the labels were set successfully.
Typically, if the function was used successfully, the main dialog message may
need to be changed, e.g.:
\begin{verbatim}
    wxMessageDialog dlg(...);
    if ( dlg.SetYesNoLabels(_("&Quit"), _("&Don't quit")) )
        dlg.SetMessage(_("What do you want to do?"));
    else // buttons have standard "Yes"/"No" values, so rephrase the question
        dlg.SetMessage(_("Do you really want to quit?"));
\end{verbatim}


\membersection{wxMessageDialog::SetYesNoCancelLabels}\label{wxmessagedialogsetyesnocancellabels}

\func{bool}{SetYesNoCancelLabels}{\param{const wxString&}{yes},\param{const wxString&}{no},\param{const wxString&}{cancel}}

Overrides the default labels of the Yes, No and Cancel buttons.

Please see the remarks in 
\helpref{SetYesNoLabels}{wxmessagedialogsetyesnolabels} documentation.


\membersection{wxMessageDialog::SetOKLabel}\label{wxmessagedialogsetyesoklabel}

\func{bool}{SetOKLabel}{\param{const wxString&}{ok}}

Overrides the default label of the OK button.

Please see the remarks in 
\helpref{SetYesNoLabels}{wxmessagedialogsetyesnolabels} documentation.


\membersection{wxMessageDialog::SetOKCancelLabels}\label{wxmessagedialogsetokcancellabels}

\func{bool}{SetOKCancelLabels}{\param{const wxString&}{ok},\param{const wxString&}{cancel}}

Overrides the default labels of the OK and Cancel buttons.

Please see the remarks in 
\helpref{SetYesNoLabels}{wxmessagedialogsetyesnolabels} documentation.


\membersection{wxMessageDialog::SetMessage}\label{wxmessagedialogsetmessage}

\func{void}{SetMessage}{\param{const wxString&}{msg}}

Sets the message shown by the dialog.


\membersection{wxMessageDialog::SetExtendedMessage}\label{wxmessagedialogsetextendedmessage}

\func{void}{SetExtendedMessage}{\param{const wxString&}{exMsg}}

Sets the extended message for the dialog: this message is usually an extension
of the short message specified in the constructor or set with 
\helpref{SetMessage}{wxmessagedialogsetmessage}. If it is set, the main message
appears highlighted -- if supported -- and this message appears beneath it in
normal font. On the platforms which don't support extended messages, it is
simply appended to the normal message with a new line separating them.