Hi Mike,
What part of the combo box are you trying to disable? If you want to filter rows or columns you can set up a tree model filter to do so. Maybe something like the following? Eric /* gcc -Wall combo_filter1.c -o combo_filter1 `pkg-config --cflags --libs gtk+-3.0` Tested on GTK3.18 and Ubuntu16.04 */ #include<gtk/gtk.h> #include<stdlib.h> static gint combo_row=0; static void change_combo(GtkComboBox *combo2, gpointer *data) { combo_row=gtk_combo_box_get_active(combo2); gtk_tree_model_filter_refilter(GTK_TREE_MODEL_FILTER(data[1])); gtk_combo_box_set_active(GTK_COMBO_BOX(data[0]), 0); } static gboolean show_rgb(GtkTreeModel *model, GtkTreeIter *iter, gpointer data) { gchar *string=gtk_tree_model_get_string_from_iter(model, iter); gint row=atoi(string); g_free(string); if(combo_row==1&&row<3) { g_print("Combo1 Don't Show %i\n", row); return FALSE; } else { g_print("Combo1 Show %i\n", row); return TRUE; } } int main(int argc, char *argv[]) { gtk_init(&argc, &argv); GtkWidget *window=gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_title(GTK_WINDOW(window), "Combo Filter"); gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER); gtk_window_set_default_size(GTK_WINDOW(window), 300, 100); g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL); GtkTreeIter iter; GtkListStore *store=gtk_list_store_new(1, G_TYPE_STRING); gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, "Yellow", -1); gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, "Purple", -1); gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, "Cyan", -1); gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, "Red", -1); gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, "Green", -1); gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, "Blue", -1); GtkTreeModel *model=gtk_tree_model_filter_new(GTK_TREE_MODEL(store), NULL); gtk_tree_model_filter_set_visible_func(GTK_TREE_MODEL_FILTER(model), (GtkTreeModelFilterVisibleFunc)show_rgb, NULL, NULL); GtkCellRenderer *renderer=gtk_cell_renderer_text_new(); GtkWidget *combo1=gtk_combo_box_new_with_model(model); gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo1), renderer, TRUE); gtk_widget_set_hexpand(combo1, TRUE); gtk_widget_set_vexpand(combo1, TRUE); gtk_combo_box_set_active(GTK_COMBO_BOX(combo1), 0); gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo1), GTK_CELL_RENDERER(renderer), "text", 0, NULL); GtkWidget *combo2=gtk_combo_box_text_new(); gtk_combo_box_text_insert(GTK_COMBO_BOX_TEXT(combo2), 0, "1", "Show All"); gtk_combo_box_text_insert(GTK_COMBO_BOX_TEXT(combo2), 1, "2", "Show RGB"); gtk_combo_box_set_active(GTK_COMBO_BOX(combo2), 0); gtk_widget_set_hexpand(combo2, TRUE); gtk_widget_set_vexpand(combo2, TRUE); gpointer data[]={combo1, model}; g_signal_connect(combo2, "changed", G_CALLBACK(change_combo), data); g_object_unref(G_OBJECT(store)); GtkWidget *grid=gtk_grid_new(); gtk_grid_attach(GTK_GRID(grid), combo1, 0, 0, 1, 1); gtk_grid_attach(GTK_GRID(grid), combo2, 0, 1, 1, 1); gtk_container_add(GTK_CONTAINER(window), grid); gtk_widget_show_all(window); gtk_main(); return 0; } _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list