[PyQt5] QSystemTrayIcon implementation example

systray.py

import sys
# from PyQt5 import uic
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import (QApplication, QMainWindow, QMenu, QPushButton, QSystemTrayIcon)

class App(QMainWindow):
    def __init__(self, parent=None):
        super(App, self).__init__(parent)

        # Load UI from file
        # uic.loadUi("app.ui", self)

        # Or write your entire UI in code
        self.setFixedSize(640, 480)

        button = QPushButton('Show Message', self)
        button.move(100, 200)
        button.clicked.connect(self.show_message)

        # SysTray Icon
        self.tray = QSystemTrayIcon(self)

        # Check if System supports tray icons
        if self.tray.isSystemTrayAvailable():
            self.tray.setIcon(self.windowIcon())

            # Context Menu
            ctmenu = QMenu()

            action_show = ctmenu.addAction("Show / Hide")
            action_show.triggered.connect(lambda: self.hide() if self.isVisible() else self.show())

            action_msg = ctmenu.addAction("Show Message")
            action_msg.triggered.connect(self.show_message)

            action_quit = ctmenu.addAction("Quit")
            action_quit.triggered.connect(self.close)

            self.tray.setContextMenu(ctmenu)
            self.tray.show()
        else:
            # Destroy unused var
            self.tray = None

        # Show App
        self.show()

    def show_message(self):
        # Check if System supports messages
        if self.tray != None and self.tray.supportsMessages():
            self.tray.showMessage('Title', 'Message')
        else:
            print("Messages not supported")

if __name__ == "__main__":
    application = QApplication(sys.argv)

    application.setApplicationName("App Name")
    application.setApplicationVersion("1.1.1.1.1")
    application.setOrganizationName("dev name")
    application.setStyle("fusion")

    win = App()
    sys.exit(application.exec_())

For more information about the widget, visit:

• https://doc.qt.io/qt-5/qsystemtrayicon.html
• https://doc.qt.io/qt-5/qsystemtrayicon-members.html