Pyqt - Hide Mainwindow And Show Qdialog Without The Taskbar Icon Disappearing

I've been using the code from this example PyQt: How to hide QMainWindow: class Dialog_02(QtGui.QMainWindow): def __init__(self, parent): super(Dialog_02, self).__init_

Solution 1:

Just guessing (because I don't know what platform you're on, and I don't use a task-bar myself, so I cant really test it), but try getting rid of the parent:

class Dialog_02(QtGui.QMainWindow):
    def __init__(self, other_window):
        super(Dialog_02, self).__init__()
        # ensure this window gets garbage-collected when closed
        self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
        self._other_window = other_window
    ...    

    def closeAndReturn(self):
        self.close()
        self._other_window.show()