a7af285d1a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47777 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
220 lines
8.1 KiB
TeX
220 lines
8.1 KiB
TeX
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%% Name: dialup.tex
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%% Purpose: wxDialUpManager documentation
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%% Author: Vadim Zeitlin
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%% Modified by:
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%% Created: 08.04.00
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%% RCS-ID: $Id$
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%% Copyright: (c) Vadim Zeitlin
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%% License: wxWindows license
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\section{\class{wxDialUpManager}}\label{wxdialupmanager}
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This class encapsulates functions dealing with verifying the connection status
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of the workstation (connected to the Internet via a direct connection,
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connected through a modem or not connected at all) and to establish this
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connection if possible/required (i.e. in the case of the modem).
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The program may also wish to be notified about the change in the connection
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status (for example, to perform some action when the user connects to the
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network the next time or, on the contrary, to stop receiving data from the net
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when the user hangs up the modem). For this, you need to use one of the event
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macros described below.
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This class is different from other wxWidgets classes in that there is at most
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one instance of this class in the program accessed via
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\helpref{wxDialUpManager::Create()}{wxdialupmanagercreate} and you can't
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create the objects of this class directly.
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\wxheading{Derived from}
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No base class
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\wxheading{Include files}
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<wx/dialup.h>
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\wxheading{Library}
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\helpref{wxCore}{librarieslist}
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\wxheading{Event table macros}
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To be notified about the change in the network connection status, use these
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event handler macros to direct input to member functions that take a
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\helpref{wxDialUpEvent}{wxdialupevent} argument.
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\twocolwidtha{7cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf EVT\_DIALUP\_CONNECTED(func)}}{A connection with the network was established.}
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\twocolitem{{\bf EVT\_DIALUP\_DISCONNECTED(func)}}{The connection with the network was lost.}
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\end{twocollist}%
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\wxheading{See also}
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\helpref{dialup sample}{sampledialup}\\
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\helpref{wxDialUpEvent}{wxdialupevent}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxDialUpManager::Create}\label{wxdialupmanagercreate}
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\func{wxDialUpManager*}{Create}{\void}
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This function should create and return the object of the platform-specific
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class derived from wxDialUpManager. You should delete the pointer when you are
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done with it.
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\membersection{wxDialUpManager::IsOk}\label{wxdialupmanagerisok}
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\constfunc{bool}{IsOk}{\void}
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Returns {\tt true} if the dialup manager was initialized correctly. If this
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function returns {\tt false}, no other functions will work neither, so it is a
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good idea to call this function and check its result before calling any other
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wxDialUpManager methods
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\membersection{wxDialUpManager::\destruct{wxDialUpManager}}\label{wxdialupmanagerdtor}
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\func{}{\destruct{wxDialUpManager}}{\void}
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Destructor.
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\membersection{wxDialUpManager::GetISPNames}\label{wxdialupmanagergetispnames}
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\constfunc{size\_t}{GetISPNames}{\param{wxArrayString\& }{names}}
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This function is only implemented under Windows.
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Fills the array with the names of all possible values for the first
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parameter to \helpref{Dial()}{wxdialupmanagerdial} on this machine and returns
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their number (may be $0$).
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\membersection{wxDialUpManager::Dial}\label{wxdialupmanagerdial}
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\func{bool}{Dial}{\param{const wxString\& }{nameOfISP = wxEmptyString}, \param{const wxString\& }{username = wxEmptyString}, \param{const wxString\& }{password = wxEmptyString}, \param{bool }{async = true}}
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Dial the given ISP, use {\it username} and {\it password} to authenticate.
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The parameters are only used under Windows currently, for Unix you should use
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\helpref{SetConnectCommand}{wxdialupmanagersetconnectcommand} to customize this
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functions behaviour.
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If no {\it nameOfISP} is given, the function will select the default one
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(proposing the user to choose among all connections defined on this machine)
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and if no username and/or password are given, the function will try to do
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without them, but will ask the user if really needed.
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If {\it async} parameter is {\tt false}, the function waits until the end of dialing
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and returns {\tt true} upon successful completion.
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If {\it async} is {\tt true}, the function only initiates the connection and
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returns immediately - the result is reported via events (an event is sent
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anyhow, but if dialing failed it will be a DISCONNECTED one).
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\membersection{wxDialUpManager::IsDialing}\label{wxdialupmanagerisdialing}
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\constfunc{bool}{IsDialing}{\void}
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Returns true if (async) dialing is in progress.
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\wxheading{See also}
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\helpref{Dial}{wxdialupmanagerdial}
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\membersection{wxDialUpManager::CancelDialing}\label{wxdialupmanagercanceldialing}
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\func{bool}{CancelDialing}{\void}
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Cancel dialing the number initiated with \helpref{Dial}{wxdialupmanagerdial}
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with async parameter equal to {\tt true}.
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Note that this won't result in DISCONNECTED event being sent.
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\wxheading{See also}
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\helpref{IsDialing}{wxdialupmanagerisdialing}
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\membersection{wxDialUpManager::HangUp}\label{wxdialupmanagerhangup}
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\func{bool}{HangUp}{\void}
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Hang up the currently active dial up connection.
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\membersection{wxDialUpManager::IsAlwaysOnline}\label{wxdialupmanagerisalwaysonline}
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\constfunc{bool}{IsAlwaysOnline}{\void}
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Returns {\tt true} if the computer has a permanent network connection (i.e. is
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on a LAN) and so there is no need to use Dial() function to go online.
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{\bf NB:} this functions tries to guess the result and it is not always
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guaranteed to be correct, so it is better to ask user for
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confirmation or give him a possibility to override it.
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\membersection{wxDialUpManager::IsOnline}\label{wxdialupmanagerisonline}
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\constfunc{bool}{IsOnline}{\void}
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Returns {\tt true} if the computer is connected to the network: under Windows,
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this just means that a RAS connection exists, under Unix we check that
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the "well-known host" (as specified by
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\helpref{SetWellKnownHost}{wxdialupmanagersetwellknownhost}) is reachable.
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\membersection{wxDialUpManager::SetOnlineStatus}\label{wxdialupmanagersetonlinestatus}
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\func{void}{SetOnlineStatus}{\param{bool }{isOnline = true}}
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Sometimes the built-in logic for determining the online status may fail,
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so, in general, the user should be allowed to override it. This function
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allows to forcefully set the online status - whatever our internal
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algorithm may think about it.
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\wxheading{See also}
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\helpref{IsOnline}{wxdialupmanagerisonline}
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\membersection{wxDialUpManager::EnableAutoCheckOnlineStatus}\label{wxdialupmanagerenableautocheckonlinestatus}
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\func{bool}{EnableAutoCheckOnlineStatus}{\param{size\_t }{nSeconds = 60}}
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Enable automatic checks for the connection status and sending of
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{\tt wxEVT\_DIALUP\_CONNECTED/wxEVT\_DIALUP\_DISCONNECTED} events. The interval
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parameter is only for Unix where we do the check manually and specifies how
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often should we repeat the check (each minute by default). Under Windows, the
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notification about the change of connection status is sent by the system and so
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we don't do any polling and this parameter is ignored.
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Returns {\tt false} if couldn't set up automatic check for online status.
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\membersection{wxDialUpManager::DisableAutoCheckOnlineStatus}\label{wxdialupmanagerdisableautocheckonlinestatus}
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\func{void}{DisableAutoCheckOnlineStatus}{\void}
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Disable automatic check for connection status change - notice that the
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{\tt wxEVT\_DIALUP\_XXX} events won't be sent any more neither.
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\membersection{wxDialUpManager::SetWellKnownHost}\label{wxdialupmanagersetwellknownhost}
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\func{void}{SetWellKnownHost}{\param{const wxString\& }{hostname}, \param{int }{portno = 80}}
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This method is for Unix only.
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Under Unix, the value of well-known host is used to check whether we're
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connected to the internet. It is unused under Windows, but this function
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is always safe to call. The default value is {\tt www.yahoo.com:80}.
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\membersection{wxDialUpManager::SetConnectCommand}\label{wxdialupmanagersetconnectcommand}
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\func{void}{SetConnectCommand}{\param{const wxString\& }{commandDial = wxT("/usr/bin/pon")}, \param{const wxString\& }{commandHangup = wxT("/usr/bin/poff")}}
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This method is for Unix only.
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Sets the commands to start up the network and to hang up again.
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\wxheading{See also}
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\helpref{Dial}{wxdialupmanagerdial}
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