GTK+ Forums

Hello all,

I am a new user of GTK, and I would be happy if you could find time to answer my question.
I want to find the code of GTK functions that interests me, for example "gtk_main_iteration_do".
The best I could find is the next links: http://git.gnome.org/browse/, but I can´t find what I need here...:-(

Thank you all,
Felix.

gtk.org, maybe

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Hi,

Not sure this is really going to help you, but here are the links to the source code.

Link to the various GTK+ branches.
http://git.gnome.org/browse/gtk+/

Link to the GTK+ 3 branch.
http://git.gnome.org/browse/gtk+/tree/gtk?h=gtk-3-0

Link to the source code to gtkmain.c in the 3.0 branch. This contains the source to gtk_main_iteration_do(). To be honest that bit of code is short and not very exciting.
http://git.gnome.org/browse/gtk+/tree/gtk/gtkmain.c?h=gtk-3-0

E.

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E.

Hello All,

Thank you all for the answers.
I have another question, regarding this issue:
I am writing a real time code (video streaming from a camera), and the function that delays it is "gtk_main_iteration_do".

Is there a function in GTK that does the same job, but it is faster?

Thank you all in advance,
Felix.

Hello Errol,

Thanks a lot for your answer.
Can you please explain briefly (or not briefly :) ), how do I find a code of a GTK function, that interests me, in those links.
I mean, what is the logical structure of it? How do I know in which file I can find what?

Thanks in advance,
Felix.

I would personally not look at the source code for GTK+ if you want to learn how to use it. It is more likely to confuse you than help. You will be better off reading the documentation and working through the tutorials. There are many links here on this message board.

http://www.gtkforums.com/viewtopic.php?f=3&t=988

Note some of those links may be very old and work with very old versions of GTK.

E.

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E.

Thanks a lot for your answers.
I really appreciate the fact, that you have found time to answer me.

If you haven't already install libgtk-3-doc, ( Documentation for the GTK+ graphical user interface library ) Then install Glade. In Glade after you add a widget you can right click on it in the hierarchy view or on any of it's properties and it will take you to the documentation for that property.

Welcome to the forum,

The original poster wanted just one particular part of the source code to try and understand how the GTK main loop works. I pointed out that this may not be the best way to do this and to read the documentation would be better. Where you pointed the down load is a 12Mb tar ball download plus you will still need Glib as that is where all the work is really done and that is another 5.7Mb tar ball download.

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E.

Dear Felix,
no there is no way of speeding up gtk_main_iteration_do excepting ways in which it is dependent on the scale and efficient design of your GUI.
Your best control over streamlining your program is in terms of how often gtk_main_iteration_do is being called and if it is really necessary to do so. If it is to check for user input then there is rarely need for it to be called faster than human reflex. If its to update a window to display the streaming video then gtk is probably not the best medium to do this through.