On Thu, 13 Jan 2011 15:20:47 +0100, dib...@wp.pl wrote: > W dniu 13.01.2011 14:41, Matthias Klumpp pisze: >> Hi! >> I developed the Listaller Project, a cross-distro Linux software manager, >> which uses techniques like D-BUS and PolicyKit and had very similar >> problems. You can run Qt4 applications which use GLib (but only GLib!), >> but >> you need to call g_type_init() in the Qt application somewhere to make >> GObject work. (But only _once_, otherwise you get very strange behavior) >> This makes the application depend on GLib, but not on GTK+. I won't need >> my >> Listaller D-BUS daemon anymore next time, cause the required parts will >> get >> merged with the PackageKit project. (D-BUS in Pascal is a PAIN! I wrote a >> small set of simplifications, but it's far away from a state like C/GLib, >> where DBus is very easy to use) Projects like PackageKit, PolicyKit or >> Canberra are the reason why KDE has GLib installed in most times, so >> depending on GLib and Qt is not really a problem considering the >> dependencies. >> Cheers >> Matthias Klumpp >> > Thanks for this info Matthias. Simple question: > If I use g_main_context_set_poll_func, does it matter what I return in > TGPollFunc? Can this be just 0? Documentation say: > "/Returns/ : the number of GPollFD > <http://library.gnome.org/devel/glib/unstable/glib-The-Main-Event-Loop.html#GPollFD> > > elements which have events or errors reported, or -1 if an error occurred" > ... and I don't understand this :P Hi! Very simple: You just return the number of GPollFD records which have failed (G_IO_ERR). If everything is fine, you return 0. For any other error which makes this function fail, you return -1 (But I must admit I never used this directly) It is so great seeing someone building DBus bindings for Pascal! I requested this years ago, and finally it happens! (There are great use-cases for this, even if I won't use it in Listaller directly anymore) Regards Matthias
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