PyQt: Win Systray issue

Vinod Vasnani vinodvas at pacific.net.sg
Fri Aug 30 03:31:49 CEST 2002


I've been working on an application in PyQT and Python. It has been a
very pleasant experience. Kudos to all !

I'm at a phase where I am trying to have the application run in the
background with a systray icon. And then be able to trap mouse click
events on  that systray. For a start,  I'm attempting to have it such
that a double click on the icon will launch the user-interface.

I've run into some issues that perhaps some of you may have ideas as
to how it can be resolved.

In QT to create the systray icon,   typically the win32 api is called
to create it and also to generate the WM_USER message. The  WM_USER
message is typically a number that is associated with an event
generated by the systray icon. When someone clicks the systray icons,
the systray  will generate  the WM_USER message back  to the program.
The winEventFilter is the function in  qapplication class which
returns these  WM_USER windows messages and in general other messages
that are not into  converted into qevents.
This is an ideal function for trapping the WM_USER messages

The winEventFilter appears one possible way to handle these events in
PyQT. However in PyQT , I'm unable to locate the wrapping of the
winEventFilter function.

Is there an implementation of this in PyQT, or perhaps does anyone
know of an  alternative way to implement this event handling besides
the winEventFilter route?

Any ideas and thoughts will be appreciated.

Thanks!



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