How to dynamically change GTK window title?

This is a discussion on How to dynamically change GTK window title? within the Linux Programming forums, part of the Platform Specific Boards category; Hello friends, I am a newbie to C programming and GTK. I want to change the tile of the the ...

  1. #1
    Registered User Ravi Raj's Avatar
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    How to dynamically change GTK window title?

    Hello friends,

    I am a newbie to C programming and GTK.

    I want to change the tile of the the GTK top level window from the click of a button.

    A form with three buttons each sets different title to the parent window, how to do this.

    I had written a bad code with these errors:

    Code:
    GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `GtkWindow'
    
    Gtk-CRITICAL **: IA__gtk_window_set_title: assertion `GTK_IS_WINDOW (window)' failed

  2. #2
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    have you tried the GTK Reference?

  3. #3
    Registered User Ravi Raj's Avatar
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    Yeah,

    I had referenced the link you provided. But, it doesn't provide much detail.
    Please help.

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    it looks to me like you are passing a null pointer to gtk_window_set_title(). check to be sure that you have a valid pointer to the window when trying to do this.

  5. #5
    Registered User Ravi Raj's Avatar
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    Ok

    Is there anyone who can give me solution with proper example. Coz, I couldn't get it to work till now.
    Last edited by Ravi Raj; 05-15-2012 at 10:31 AM.

  6. #6
    Registered User Ravi Raj's Avatar
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    Thanks Elkvis,

    Problem solved. there was really a NULL pointer referencing the gtk_window_set_title().

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