window update

pradee · **Joined:** Fri Jun 15, 2007 10:13 am **Posts:** 3

hi i have to read a file and update the window based on the file? is there any fucntion that will be called when window is in open

openldev · **Posted:** Fri Jun 15, 2007 8:52 pm

If you mean you want to run a function every time the window is shown, use GtkWidget's "show" signal.

pradee · **Joined:** Fri Jun 15, 2007 10:13 am **Posts:** 3

i am new to gtk. i dont know how to use this. pls explain me

openldev · **Posted:** Sun Jun 17, 2007 12:54 pm

You can use this to connect your window to the show signal:

Code:

g_signal_connect (G_OBJECT (window), "show", G_CALLBACK (window_is_visible), (gpointer) data);

The first parameter is the widget that you want to monitor for the "show" signal. When the window is shown to the user, window_is_visible() will be called. The fourth parameter allows you to send one pointer to the callback function, or NULL to ignore it. The callback function should look like this:

Code:

void window_is_visible (GtkWindow *window, gpointer data)
{
  /* Do something now that the window is shown. */
}

Hope this helps!

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