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






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



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Vijayasarathy
Senior Research Associate
SETS


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DISCLAIMER
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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.
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+91-44-28205655 and then delete this e-mail. The sender does not accept any responsibility for any damage 
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