Splash Screen in GTK - c

Question

I'm new to GTK and i'm using it to create UI in C. I've created a splash screen and i'm able to close it after specified seconds using the function g_timeout_add(100, function_to_call, NULL);. The Splash screen works great. but the problem is when in extend my program further (i.e) After closing the splash screen I want another window to be displayed automatically, it doesn't happen so. Both the windows open together. Here is my program.
gboolean function_to_call(gpointer data){
gtk_quit_main();
return(FALSE);
}
int main (int argc, char *argv[]){
GtkWidget *window, *image, *another_window;
gtk_init(&argc, &argv);
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g_timeout_add (100, function_to_call, NULL);
gtk_main ();
/*if my program is till this, splash screen closes after 1 sec . But when i try
*to define another window from here onwards and call gtk_widget_show() and gtk_main()
*again for another_ window, window and another_window both open together and window
*doesn't close after 1 sec. */
}
Any kind of help is appreciatable.
Thank you.

Answer 1

Your function_to_call doesn't close your splash window here, it ends the gtk_main event loop. You don't need to end the event loop.
What you want to do instead, in your function_to_call, is hide (or destroy) your splash window and show your next window (gtk_widget_hide(),gtk_widget_show()).

Answer 2

I've created a splashscreen header file which is shown below..
#include <gtk/gtk.h>
/* Close the splash screen */
gboolean close_screen(gpointer data)
{
gtk_widget_destroy((GtkWidget*)data);
gtk_main_quit ();
return(FALSE);
}
int Show_Splash_Screen(char* image_name,int time,int width,int height)
{
GtkWidget *image, *window;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_size_request (window, width, height);
gtk_window_set_decorated(GTK_WINDOW (window), FALSE);
gtk_window_set_position(GTK_WINDOW(window),GTK_WIN_POS_CENTER_ALWAYS);
gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
image=gtk_image_new_from_file(image_name);
gtk_container_add(GTK_CONTAINER(window), image);
gtk_widget_show_all (window);
g_timeout_add (time, close_screen, window);
gtk_main ();
return 0;
}
just include this file and to show a splash screen call the function
Show_Splash_Screen("image_path",time_in_seconds,width_of_image_in_pixels,height_of_image_in_pixels);