RE: gtk_timeout problem

[Trog <trog gtk org>]

Read this:

http://www.gtk.org/tutorial/gtk_tut-17.html#ss17.1

Your callback function declaration is incorrect.

-tony

On 02-Oct-2000 Matt Eisemann wrote:
> Currently I am building an application which will require a window
> refresh 
> every x amount of time so I thought I would use the function call 
> gtk_timeout_add.  However, I am getting a core dump after x amount
> of 
> seconds/time is over.  The timeout seems to work since the
> application 
> seems to run until the timeout specified but then the application
> crashes 
> and I get a core dump.  I am probabaly doing something ignorant
> since I am 
> not real familiar with this function. Below is some code that
> should 
> exemplify my problem:
> 
> void test_select(GtkWidget *widget, gpointer display_tasks)
> {
>   int timeperiod;
>   timeperiod = 
> gtk_timeout_add(10000,(GtkFunction)select_all,display_tasks);
> }
> 
> This function should call my function select_all every 10000 ms or
> I guess 
> about 10 seconds.
> 
> void select_all(GtkWidget *widget, gpointer display_tasks)
> {
>   printf("select all \n\n");
>   gtk_clist_select_all(GTK_CLIST(display_tasks));
> }
> 
> The callback in main () for this is when a certain pushbutton gets
> pushed 
> and calls 'test_select'.  The reason i have an 'empty' function
> which has 
> test_select call select_all is so I don't cause infinite recursion
> or is 
> that not an issue with gtk.
> 
> gtk_signal_connect(GTK_OBJECT(all_tasks),"clicked",
>                              test_select,GTK_CLIST(display_tasks));
> 
> 
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