QT Implementation system Tray

Usually most of the software you see is with the system tray, so the software can run in the background, very good. Today to see the next Qt Demon, the middle has reference to the next, the realization of this small function, will add this feature to their own before a project, the effect is fine. The interface looks like this:

Right-clicking on the System tray displays the menu functions currently set:

How, the effect is OK. To achieve this small function hall satisfied. Right-click on the popup menu to set the desired settings yourself. You can also set the actions that are triggered when the mouse clicks, double-clicks, and middle keys are pressed separately. The main code is as follows:

1, first need to add a header file, Qsystem/trayicon class, Qmenu class and qaction three classes

<span style= "FONT-SIZE:18PX;" ><strong>    Qsystemtrayicon *mytrayicon;                                  System tray pointer    qmenu *mymenu;                                                System tray Menu    qaction *minisizeaction;                                      Minimization of    qaction *maxsizeaction;                                       maximizing    qaction *restorewinaction;                                    Restore    qaction *quitaction;                                          Exit    qaction *checkupdate;                                         Check for Updates </strong></span>

function function Realization:

<span style= "FONT-SIZE:18PX;" ><strong>/* * Function: Create system tray Menu * Input parameters: None * Output parameters: None * Description: This function is used to create a menu for the system tray, providing the user to click on the corresponding menu to operate */void MainWindow::    Createtraymenu () {minisizeaction = new qaction (tr ("Minimized (&n)"), this);    Minisizeaction->settooltip (tr ("minimized"));    Minisizeaction->seticon (Qicon (":/images/systemtrayico/minac.png"));    Maxsizeaction = new Qaction (tr ("Maximized (&x)"), this);    Maxsizeaction->settooltip (TR ("maximized"));    Maxsizeaction->seticon (Qicon (":/images/systemtrayico/maxac.png"));    Restorewinaction = new Qaction (tr ("Restore (&r)"), this);    Restorewinaction->settooltip (TR ("restore"));    Restorewinaction->seticon (Qicon (":/images/systemtrayico/restoreac.png"));    Quitaction = new Qaction (tr ("Exit (&AMP;Q)"), this);    Quitaction->settooltip (tr ("exit"));    Quitaction->seticon (Qicon (":/images/systemtrayico/exitac.png"));    Checkupdate = new Qaction (tr ("Check for Updates (&c)"), this);    Checkupdate->settooltip (TR ("Check for Updates")); Checkupdate->seticon (Qicon (":/images/systemtrAyico/updateac.png "));    The various menus are connected by slots to trigger the corresponding action connect (minisizeaction,signal (triggered ()), This,slot (Hide ()));    Connect (maxsizeaction,signal (triggered ()), This,slot (showmaximized ()));    Connect (restorewinaction,signal (triggered ()), This,slot (Shownormal ()));    Connect (quitaction,signal (triggered ()), This,slot (Logoutwidget ()));    Connect (checkupdate,signal (triggered ()), This,slot (Checksysupdate ()));    Add the Created menu object to the system tray menu MyMenu = new Qmenu ((qwidget*) qapplication::d esktop ());    Mymenu->addaction (minisizeaction);    Mymenu->addaction (maxsizeaction);    Mymenu->addaction (restorewinaction);    Mymenu->addseparator ();    Mymenu->addaction (checkupdate);                 Mymenu->addseparator (); Add a delimiter mymenu->addaction (quitaction);}    /* Function: Create the System icon when the software is minimized and display some information * Description: The system supports the system tray icon effect to make a judgment, support to perform the corresponding action */void Mainwindow::createtrayicon () {    Createtraymenu (); Determine if the system supports the system tray icon if (!    Qsystemtrayicon::issystemtrayavailable ()) {return; } Mytrayicon = new Qsystemtrayicon (this);    Mytrayicon->seticon (Qicon (":/images/main.png"));    Mytrayicon->settooltip (TR ("Volkswagen Supermarket cashier System V2.0"));    Mytrayicon->showmessage ("VW Software", "software entered the minimized mode, if you want to restore, click to Restore", qsystemtrayicon::information,10000);    Mytrayicon->setcontextmenu (MyMenu);    Mytrayicon->show (); Connect (mytrayicon,signal (activated (Qsystemtrayicon::activationreason)), This,slot (iconacitvated ( Qsystemtrayicon::activationreason)));} </strong></span>

Mouse click event Handling:

<span style= "FONT-SIZE:18PX;" ><strong>/* * Function: Perform mouse click on the system tray menu after the corresponding action * Description: When the mouse click on the menu to trigger the action *     (left, right) Click, double, middle button. These actions can be handled separately for the corresponding event */void mainwindow::iconacitvated (Qsystemtrayicon::activationreason reason) {    switch (reason)    {case    Qsystemtrayicon::trigger:        this->shownormal ();        break;    Case Qsystemtrayicon::D oubleclick:        this->showmaximized ();        break;    Case Qsystemtrayicon::middleclick:        //Break        ;    Default: Break        ;    }} </strong></span>

That's the basic code.

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QT Implementation system Tray