What i want to do is to make a simple thing...
A combobox which have option ( off, 5 minutes, 10 minutes, 30 minutes, 1 hour ) and if is for example choosed to 1 hour every hour ( 17:00, 18:00 and all of that ) show a ballon that the time now is ( current_time ).

So i have some ideas but i do not know hot to put it..

Qt Code: 
  1. QTimer *timer = new QTimer(this);
  2. this->updateTimeLabel();
  3.     timer->start(1000);
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Qt Code: 
  1. void roloi::updateTimeLabel()
  2.     {
  3.         //this basicaly takes the first 5 characters of the time string, starting from right to left
  4.         QString clockSharp = QTime::currentTime().toString().right(5);
  5.         //set a new pallete to color our label
  6.         QColor fg;
  7.         fg.setNamedColor("black");
  8.         QPalette pal = ui->timeLabel->palette();
  9.  
  10.         if (reminder.left(1) != "C" && reminder.left(1) != "0")
  11.         {
  12.         switch (reminder.toInt()) {
  13.         case 1:
  14.             if (clockSharp=="00:00" || clockSharp=="05:00" || clockSharp=="10:00" || clockSharp=="15:00" || clockSharp=="20:00" || clockSharp=="25:00" || clockSharp=="30:00" || clockSharp=="35:00" || clockSharp=="40:00" || clockSharp=="45:00" || clockSharp=="50:00" || clockSharp=="55:00") {
  15.                 fg = sharpColor;
  16.                 if (showPop) showBaloon();
  17.             }
  18.             break;
  19.         case 2:
  20.             if (clockSharp=="00:00" || clockSharp=="10:00" || clockSharp=="20:00" || clockSharp=="30:00" || clockSharp=="40:00" || clockSharp=="50:00" ) {
  21.                 fg = sharpColor;
  22.                 if (showPop) showBaloon();
  23.             }
  24.             break;
  25.         case 3:
  26.             if (clockSharp=="00:00" || clockSharp=="15:00" || clockSharp=="30:00"  || clockSharp=="45:00" ) {
  27.                 fg = sharpColor;
  28.                 if (showPop) showBaloon();
  29.             }
  30.             break;
  31.         case 4:
  32.             if (clockSharp=="00:00" || clockSharp=="30:00" ) {
  33.                 fg = sharpColor;
  34.                 if (showPop) showBaloon();
  35.             }
  36.             break;
  37.         case 5:
  38.             if (clockSharp=="00:00" ) {
  39.                 fg = sharpColor;
  40.                 if (showPop) showBaloon();
  41.             }
  42.             break;
  43.         }
  44.     }
  45.         pal.setColor(QPalette::Foreground,fg);
  46.         ui->timeLabel->setPalette(pal);
  47.         ui->timeLabel->setText(QTime::currentTime().toString());
  48.         trayIcon->setToolTip("Clock | " + ui->timeLabel->text() + "\n\nDouble click to show the window.\nMiddle click to exit the application.");
  49.         this->setWindowTitle("Clock | " + ui->timeLabel->text());
  50.  
  51.         if (reminder.left(1)=="C" && reminder.length() > 1 && !cstTimer->isActive() && QTime::currentTime().toString().right(2) == "00")
  52.         {
  53.             cstTimer = new QTimer(this);
  54.             connect(cstTimer, SIGNAL(timeout()), this, SLOT(customReminder()));
  55.             cstTimer->start(60000 * reminder.right(reminder.length()-1).toInt());
  56.         } else if (reminder.left(1)!="C" && cstTimer->isActive()){
  57.             cstTimer->stop();
  58.         }
  59.     }
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Qt Code: 
  1. void roloi::showBaloon()
  2. {
  3.     trayIcon->showMessage("Clock alert", "It's " + QTime::currentTime().toString().left(5) + ".",
  4.                           QSystemTrayIcon::Information, 5000);
  5.  
  6. }
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