[FIXED] How to get the message from a PyQt5 notification message?

Issue

I'd like to write an application using PyQt5 that has various notification messages. Is it possible to get the text from a balloon message when a user clicked on it?

I wrote a sample code that simulate my question. A thread sending signals every 10 seconds. When a signal sent, two types of messages pops up. When a user clicks on the message tray_msg_clicked method activates. But this is where I stuck. I can't identify what was the message.

from PyQt5 import QtCore, QtWidgets
from time import sleep


class Ui_MainWindow(QtWidgets.QMainWindow):

    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(1218, 502)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(MainWindow.sizePolicy().hasHeightForWidth())
        MainWindow.setSizePolicy(sizePolicy)
        MainWindow.setMinimumSize(QtCore.QSize(827, 500))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.mythread = ExecuteThread()
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        self.initUI()

    def initUI(self):
        self.tray()
        self.start_thread()

    def start_thread(self):
        self.mythread.start()
        self.mythread.my_signal.connect(self.thread_signal)

    def thread_signal(self, msg):
        if msg == "message1":
            self.tray_icon.showMessage("Message1", "This is message one.",
                                       QtWidgets.QSystemTrayIcon.Information, 5000)
        elif msg == "message2":
            self.tray_icon.showMessage("Message2", "This is message two.",
                                       QtWidgets.QSystemTrayIcon.Information, 5000)

    def tray_msg_clicked(self):
        print("Tray message clicked!")
        tray_msg = ""
        if tray_msg == "This is message one.":
            print("'Message one' code activated.")
            # Some code
        elif tray_msg == "This is message two.":
            print("'Message two' code activated.")
            # Some code

    def tray(self):
        self.tray_icon = QtWidgets.QSystemTrayIcon(self)
        self.tray_icon.messageClicked.connect(self.tray_msg_clicked)
        self.tray_icon.setIcon(self.style().standardIcon(QtWidgets.QStyle.SP_ComputerIcon))
        tray_menu = QtWidgets.QMenu()
        self.tray_icon.setContextMenu(tray_menu)
        self.tray_icon.show()


class ExecuteThread(QtCore.QThread):
    my_signal = QtCore.pyqtSignal(str)

    def __init__(self, parent=None):
        super(ExecuteThread, self).__init__(parent)

    def run(self):
        while True:
            self.my_signal.emit("message1")
            sleep(10)
            self.my_signal.emit("message2")
            sleep(10)


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

Anyone have any idea or workaround to identify the text from these notification messages? Thank You for your help!

Solution

The responsible module for show this messages the QBalloonTip class that doesn't have public interface, so unfortunately this is unavailable from python.

https://code.woboq.org/qt5/qtbase/src/widgets/util/qsystemtrayicon_p.h.html#QBalloonTip

Try to modifiy the toolTip attribute of the QSystemTrayIcon instance or introduce a new variable with the text of the last message.

Answered By - birorichard

Answer Checked By - Clifford M. (PHPFixing Volunteer)

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