[PyKDE] KSystemTray and window closing

[Jim Bublitz]

On Thursday August 28 2003 17:16, Sok Ann Yap wrote:
> Hi there,

> May I know how to keep my application from quitting when I
> close the main window? The desired result is to let the
> application to stay in the system tray and not taking any
> space in the taskbar.

This seems to work too, using KMainWindow - it may require 
PyKDE3.8 however for KApplication.quit and 
KMainWindow.queryClose to work correctly (same casue for both 
problems). 

Note that it doesn't close the main window but only hides it. The 
extra memory used (as opposed to destroying the window) is 
probably mininal, because the program remains running anyway.

If you want menus/toolbars/etc, or an XMLGUI constructed 
interface, KMainWindow is a better choice than QWidget as in the 
previous msg.

Jim



import sys

from qt import QLabel, QWidget, SIGNAL
from kdecore import KApplication, KIconLoader
from kdeui import KMainWindow, KSystemTray

class MainWin (KMainWindow):
    def __init__ (self, *args):
        apply (KMainWindow.__init__, (self,) + args)

        self.exitFlag = False

        icons = KIconLoader ()

        self.systray = KSystemTray (self)
        self.systray.setPixmap (icons.loadIcon("stop", 0))
        self.systray.connect (self.systray, 
                                        SIGNAL("quitSelected()"),
                                        self.slotQuitSelected)
        self.systray.show ()

    def queryClose (self):
        self.hide ()
        return self.exitFlag

    def slotQuitSelected (self):
        self.exitFlag = True
        KApplication.kApplication ().quit ()

#-------------------- main 
------------------------------------------------

appName = "template"
app = KApplication (sys.argv, appName)
mainWindow = MainWin (None, "main window")

mainWindow.show()
app.exec_loop()