Setting data in a list store

[Mike Oliphant <oliphant mp3 com>]

I'm having trouble modifying data in an existing list store. I want to 
modify the selected row of the associated tree view. I can read the list 
store data from the iterator, but any call to list_store_set() on the 
iterator just crashes.

Here is a code snippet:

  if(gtk_tree_selection_get_selected(selection,&model,&iter)) {
    gtk_tree_model_get(model,&iter,TRACKLIST_NUM_COL,&data,-1);

    gtk_list_store_set(my_list_store,&iter,TRACKLIST_RIP_COL,TRUE,-1);
  }

The call to get_tree_model_get() works fine. The call to 
gtk_list_store_set() just crashes. Am I misunderstading something here? 
Any help would be much appreciated.

Mike

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Mike Oliphant                                      oliphant mp3 com