On 10/17/05, Tristan Van Berkom <[EMAIL PROTECTED]> wrote: > > Premsagar C wrote: > > I am using gtk to develop a control interface. Am a bit new to this. > > BAsically I am acquiring data using some library functions and > > dispalying them in 6 text boxes . When i click on the bacq function > > this acquistion starts. > > > > > > > gtk_signal_connect(GTK_OBJECT(bacq),"clicked",GTK_SIGNAL_FUNC(button_funcacq),NULL); > > > > > My problem is that when this happend the dispaly window goes blank and > > am unable to control it. I need to be able to access another button > > when this acqusition is occuring and it id part of the same window. > > How do I do that ? Is there some other signal event I can use. > > If I'm reading you right; your button_funcacq() function is doing a > lengthly calculation or some lengthly data acquisition operations and > while this function is running; your UI is unresponsive... dont panic, > this is normal :) > > What you need to do is one of the following: > o Split your data acquisition operation into small itterations > (example: limit your sql queries to 100 rows per result set) > and run these itterations in an idle or timeout handler. > > o If you are stuck with some proprietary API that allows > you only to call one funtion for an entire operation > thats going to take a half an hour to execute, you'll > have to use a "worker thread" to aquire the data silently > in the background and notify the primary thread after > the lengthly offending culprit function finally returns > (probably using an idle handler for notification, or these > days you can probably use a GChildWatchSource). > > I recommend you read the juicy parts of this page: > http://developer.gnome.org/doc/API/2.0/glib/glib-The-Main-Event-Loop.html > > Cheers, >
-Tristan > Tristian, A timeouthandler did the job howvever I still have a few bugs. My data acuqisition is working and getstting displayed on my text widget as I have included my timeout in the main . On clicking a button i require to stop the data acqusition and do a few other operations(they all work). however on removing the timeout I am not able to use the main menu button anymore. The system crashes saying there is a segmentation error _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
