Hello everyone,
I have a problem with a GTK+ program that I am writing. I thought to put a progress bar that so many seconds increases a little. So I used ten images .png (progress1.png, progress2.png, etc.) indicating the status of progress. The problem is that if I create a window with the first image, if I put a function that blocks the implementation of the program of 5 seconds, the program draws the window after 5 seconds. I do not know if I make myself clear.
Example:

in the window appears progress1.png

XX

after 5 seconds becomes so (progress2.png)

XXXX

after another 5 seconds (progress3.png)

XXXXXX

and so forth. For each step, the image with the progress bar is overwritten by another. At least should do so, instead draws only the last, progress10.png, waiting for 45 seconds (9 sleep of 5 seconds each).

This is the portion of code that places images with bar progression:


Fix = gtk_fixed_new ();
image = gtk_image_new_from_file ( "progress1.png");
Gtk_fixed_put (fix, image, 230, 340);
Gtk_container_add (GTK_CONTAINER (win), fix);
Gtk_widget_show_all (Win);

System ( "sleep 5s");

Gtk_container_remove (GTK_CONTAINER (win), fix);
Fix = gtk_fixed_new ();
image = gtk_image_new_from_file ( "progress2.png");
Gtk_fixed_put (fix, image, 230, 340);
Gtk_container_add (GTK_CONTAINER (win), fix);
Gtk_widget_show_all (Win);

System ( "sleep 5s");

Gtk_container_remove (GTK_CONTAINER (win), fix);
Fix = gtk_fixed_new ();
image = gtk_image_new_from_file ( "progress3.png");
Gtk_fixed_put (fix, image, 230, 340);
Gtk_container_add (GTK_CONTAINER (win), fix);
Gtk_widget_show_all (Win);


First I place the beginning progress image, then I remove the container and put the image of progress No. 2 and so on until 10.
If I want that between a picture and another pass 5 seconds, I thought to use the bash command "sleep 5s." The same thing happens if put a for cycle that take few seconds. But this does not appear immediately the window. You'll see the window after 5 seconds, making appear progress10.png, bypassing progress1.png and the other images. So I can not make the ladder progress1.png - 5 seconds - progress2.png - 5 seconds - progress3.png, etc.
Is it possible drawing the window, wait time with the window and objects appeared before remaking the container with new objects inside?

Thanks in advance for helping me.

Scorpion77

I solved with function g_timeout_add(). But I noticed a strange behavior: if I use g_timeout_add(240, time_handler, NULL), my function (time_handler) is called every 240 milliseconds, and it's ok. But after 242 seconds, the timeout function expires. If I set an interval of 100 milliseconds, after 102 seconds the timeout is destroyed and will not be called again. If I set an interval of 50 milliseconds, after 52 seconds the timeout is destroyed and will not be called again, and so on. It seems that timeout is destroyed after interval time transformed into seconds + 2.

Why this happens?

From http://library.gnome.org/devel/glib/...#g-timeout-add
Maybe you are returning FALSE?