Re: Playing around with two windows in a program: problem

[vijayasarathy setsindia net]

Now I have seen that the program works even without calling
gtk_main_iteration at the end of closing and opening the two windows.


My doubt:

What is the role of gtk_main()? When should it be called ? Should I be
calling the main function when I am changing between windows ?


On Fri, January 11, 2008 5:05 pm, vijayasarathy setsindia net wrote:
>

>
> Also,
>
>
>
> 1. Please dont get into names. I have changed them so that I disclose not
>  much about what I am doing :-)
>
> 2. call back function func1() for the wdgt_window2 on destroy calls
> gtk_main_quit(), does nothing else.
>
>
> Thanks
>
>
>
> Vijay
>
>
>
> On Fri, January 11, 2008 5:03 pm, vijayasarathy setsindia net wrote:
>
>>
>
>>
>>
>> Hi All,
>>
>>
>>
>> I was caught in a situation like this:
>>
>>
>>
>> I have three windows, and a main window. The main window contains three
>>  radio buttons 1)option1 2)option2 3)option3. On the coresponding
>> option being chosen, program then has to
>>
>> a)close main window b)open an another window(depending on the option
>> chosen).
>>
>> What I did was this:
>>
>>
>>
>> **************************START CODE
>> CHUNK**********************************
>> /*THIS IS IN THE CALL BACK FUNCTION OF A BUTTON WHICH IS IN MAIN
>> WINDOW*/
>>
>>
>>
>> /*if radiobutton1 was active, then redirect to utility suite window.
>> Show
>> the window, that is*/ if (gtk_toggle_button_get_active
>> (GTK_TOGGLE_BUTTON
>> (wdgt_radio_main_radiobutton2)))//Create and show window2.
>> {
>>
>>
>>
>> //Create window2
>> wdgt_window2 = create_ui_window2(); gtk_widget_show (wdgt_window2);
>> g_signal_connect ((gpointer) wdgt_window2, "destroy",
>> G_CALLBACK(func1),NULL);
>>
>>
>>
>>
>> //Hide the main window
>> GtkWidget * mainwindow = gtk_widget_get_toplevel(GTK_WIDGET(button));
>> gtk_widget_hide(mainwindow);
>>
>> }
>> else { g_print("Radiobutton2 not clicked !!"); //For now.:-) /* If
>> control reaches here, the toggle button is up */ }
>>
>>
>> gtk_main ();
>>
>> **************************END CODE
>> CHUNK************************************
>>
>>
>>
>>> From this piece of code, things partly worked the way I wanted.
>>>
>>>
>>
>> a) On clicking the corresponding button, radiobuttons were checked and
>> corresponding window opened, and the mainwindow got hidden.
>>
>> b) PROBLEM: when I click the close button[at the top right in the new
>> window], gtk_main_quit() is not called. That is, the program doesnt
>> end.
>>
>> Then I thought the problem might be in calling this gtk main forever.
>> So
>> I
>> changed the last line of the code to gtk_main_iteration() [call it only
>> once].
>>
>> Then my code works perfectly. When I click the close button in the new
>> window, the program ends.
>>
>> My question:
>>
>>
>>
>> 0. Should I call gtk_main() after I show the new window and hide the
>> main window ? 1. Why did this trouble occur ? And how did
>> gtk_main_iteration() solve the problem ? 2. Am I likely to end up with
>> problems with the way I have coded it now [and it works ] ??
>>
>>
>> Pls help me soon buddies.
>>
>>
>>
>>
>>
>> Vijayasarathy
>> Senior Research Associate
>> SETS
>>
>>
>>
>> ***********************************************************************
>> **
>> **
>> DISCLAIMER
>> This e-mail and any files transmitted with it are for the sole use of
>> the intended recipient(s) and may contain confidential and privileged
>> information. Any use, distribution, copying or disclosure by any other
>> person is strictly prohibited. If you have received this transmission
>> in error please notify SETS immediately either by replying to this
>> e-mail or by telephone on +91-44-28205655 and then delete this e-mail.
>> The sender
>> does not accept any responsibility for any damage which you sustain as a
>>  result of software viruses or malicious programs. You should therefore
>>  scan attachments (if any) prior to opening them.
>> ***********************************************************************
>> **
>> *
>>
>>
>>
>>
>> ***********************************************************************
>> **
>> ************
>> DISCLAIMER
>> This e-mail and any files transmitted with it are for the sole use of
>> the intended recipient(s) and may contain confidential and privileged
>> information. Any use,distribution,copying or disclosure by any other
>> person is strictly prohibited. If you have received this transmission
>> in error please notify SETS immediately either by replying to this
>> e-mail or by telephone +91-44-28205655 and then delete this e-mail. The
>> sender does not accept any responsibility for any damage which you
>> sustain as a result of software viruses or malicious programs. You
>> should therefore scan attachments (if any) prior to opening them.
>> ***********************************************************************
>> **
>> ***********
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> gtk-app-devel-list mailing list gtk-app-devel-list gnome org
>> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list**************
>> **
>> *********************************************************************
>> DISCLAIMER
>> This e-mail and any files transmitted with it are for the sole use of
>> the intended recipient(s) and may contain confidential and privileged
>> information. Any use,distribution,copying or disclosure by any other
>> person is strictly prohibited. If you have received this transmission
>> in error please notify SETS immediately either by replying to this
>> e-mail or by telephone +91-44-28205655 and then delete this e-mail. The
>> sender does not accept any responsibility for any damage which you
>> sustain as a result of software viruses or malicious programs. You
>> should therefore scan attachments (if any) prior to opening them.
>> ***********************************************************************
>> **
>> ***********
>>
>>
>>
>>
>>
>>
>>
>>
>
>
> Vijayasarathy
> Senior Research Associate
> SETS
>
>
> *************************************************************************
> **
> DISCLAIMER
> This e-mail and any files transmitted with it are for the sole use of
> the intended recipient(s) and may contain confidential and privileged
> information. Any use, distribution, copying or disclosure by any other
> person is strictly prohibited. If you have received this transmission in
> error please notify SETS immediately either by replying to this e-mail or
> by telephone on +91-44-28205655 and then delete this e-mail. The sender
> does not accept any responsibility for any damage which you sustain as a
> result of software viruses or malicious programs. You should therefore
> scan attachments (if any) prior to opening them.
> *************************************************************************
> *
>
>
>
>


Vijayasarathy
Senior Research Associate
SETS

***************************************************************************
DISCLAIMER
This e-mail and any files transmitted with it are for the sole use of
the intended recipient(s) and may contain confidential and privileged
information. Any use, distribution, copying or disclosure by any other
person is strictly prohibited. If you have received this transmission
in error please notify SETS immediately either by replying to this e-mail
or
by telephone on +91-44-28205655 and then delete this e-mail.
The sender does not accept any responsibility for any damage which
you sustain as a result of software viruses or malicious programs.
You should therefore scan attachments (if any) prior to opening them.
**************************************************************************


*************************************************************************************
DISCLAIMER 
This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. 
Any use,distribution,copying or disclosure by any other person is strictly prohibited. If you have received this transmission in error please notify SETS immediately either by replying to this e-mail or by telephone +91-44-28205655 and then delete this e-mail. The sender does not accept any responsibility for any damage which you sustain as a result of software viruses or malicious programs. You should therefore scan attachments (if any) prior to opening them. 
************************************************************************************