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-rw-r--r--display-gtk.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/display-gtk.h b/display-gtk.h
index d5ffcb246..8ca5a450e 100644
--- a/display-gtk.h
+++ b/display-gtk.h
@@ -57,6 +57,11 @@ typedef void (*data_func_t)(GtkTreeViewColumn *col,
GtkTreeIter *iter,
gpointer data);
+typedef gint (*sort_func_t)(GtkTreeModel *model,
+ GtkTreeIter *a,
+ GtkTreeIter *b,
+ gpointer user_data);
+
#define ALIGN_LEFT 1
#define ALIGN_RIGHT 2
#define INVISIBLE 4