How to show Multiple Message using QSystemTrayIcon?

[ashukla]

foreach (QString str, msgData) {
		QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon();
		this->showMessage(tr("Alert"), str, icon);
		sleep(2);
	}

foreach (QString str, msgData) {
		QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon();
		this->showMessage(tr("Alert"), str, icon);
		sleep(2);
	}

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The above code doesn't display all the message. Only the last alert is visible. How to display all the alerts.

[jpujolf]

Try adding this line of code ( not tested, but I think it must do the work... )

foreach (QString str, msgData) {
		QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon();
		this->showMessage(tr("Alert"), str, icon);
		QCoreApplication::processEvents(); // <= THIS LINE
		sleep(2);
	}

foreach (QString str, msgData) {
		QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon();
		this->showMessage(tr("Alert"), str, icon);
		QCoreApplication::processEvents(); // <= THIS LINE
		sleep(2);
	}

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[Lykurg]

sleep(2);

sleep(2);

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Wow, that will block your whole application! Better use a QTimer.

[ashukla]

foreach (QString str, msgData) {
        QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon();
        this->showMessage(tr("Alert"), str, icon);
        QCoreApplication::processEvents(); // <= THIS LINE
        sleep(2);
    }

foreach (QString str, msgData) {
        QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon();
        this->showMessage(tr("Alert"), str, icon);
        QCoreApplication::processEvents(); // <= THIS LINE
        sleep(2);
    }

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the output is same as previous.

[ashukla]

Wow, that will block your whole application! Better use a QTimer.

Where I put this timer?

[Lykurg]

the output is same as previous.

because of your sleep(). First it is only possible to display one message. So if you have more you must place them with time elapse.

• Store all messages in a QQueue.
• call a showMyMessages(): if the queue in not empty and the timer is not running display the message and start a timer which calls the same function again in X seconds. if no message are left stop timer.