Gtk show and hide containers on button click - c

Question

I'm working on a simple app. I basically have a GUI made in Glade. I'm using C.
I have on the top a bar about 10 buttons. I want to press, for example, button 1 and I want my low-half screen (which is a box with a fixed and some buttons) to show.
However if a press the button 2 on the top bar I want my lower-half screen to hide that content an replace it with some new one. I know I can do it manually with widget_hide and show one by one, but is there any way I can do it with glade containers?
GtkWidget *btn = ptr[2];
GtkWidget *fx = ptr[1];
GtkWidget *holder = ptr[3];
if(gtk_toggle_button_get_active(btn)){
gtk_fixed_put(holder,fx,0,0);
gtk_widget_show(fx);
}else{
gtk_widget_hide(fx);
}
That's a really basic idea, btn being the button I press, holder being the fixed container inside the box, and fx being the fixed container of the widgets I want to show/hide and replace with other fixed with different widgets.
Kinda hard to explain myself. Basically y press a button for example each button its a different window, like changing a div and it's contents on HTML.

Answer 1

Not sure what design you exactly want. Just thinking from my side: I am having a python example app where I load several windows at init.
...
self.controlwindow = builder.get_object("scoreboard_control_window")
self.viewwindow = builder.get_object("scoreboard_view_window")
self.logdialog = builder.get_object("scoreboard_log_dialog")
self.logoffdialog = builder.get_object("scoreboard_logoff_confirm")
self.logcanceldialog = builder.get_object("scoreboard_logcancel_confirm")
self.resetdialog = builder.get_object("scoreboard_resetconfirm")
self.exitdialog = builder.get_object("scoreboard_exitconfirm")
And by using show/hide like GUI.controlwindow.show() or self.logoffdialog.show() or self.logoffdialog.hide(), I control the pop-up / hiding of dialog and entries windows.