+ pointer_bg, dest_mask, domain, WC_TREEVIEW,
+ WS_TABSTOP | WS_BORDER | PBS_SMOOTH
+ | TVS_HASLINES | TVS_HASBUTTONS,
+ WS_EX_CLIENTEDGE | WS_EX_CONTROLPARENT);
+
+ wnd = WIDGET_INSTANCE_MSWINDOWS_HANDLE (ii);
+
+ /* define a root */
+ parent = add_tree_item (image_instance, wnd, NULL,
+ XCAR (IMAGE_INSTANCE_WIDGET_ITEMS (ii)),
+ TRUE, domain);
+
+ /* recursively add items to the tree view */
+ /* add items to the tab */
+ LIST_LOOP (rest, XCDR (IMAGE_INSTANCE_WIDGET_ITEMS (ii)))
+ {
+ if (LISTP (XCAR (rest)))
+ add_tree_item_list (image_instance, wnd, parent, XCAR (rest), domain);
+ else
+ add_tree_item (image_instance, wnd, parent, XCAR (rest), FALSE, domain);
+ }
+}
+
+/* instantiate a tab control */
+static TC_ITEM* add_tab_item (Lisp_Object image_instance,
+ HWND wnd, Lisp_Object item,
+ Lisp_Object domain, int index)
+{
+ TC_ITEM tvitem, *ret;
+
+ tvitem.mask = TCIF_TEXT;
+
+ if (GUI_ITEMP (item))
+ {
+ tvitem.lParam = mswindows_register_gui_item (item, domain);
+ tvitem.mask |= TCIF_PARAM;
+ GET_C_STRING_OS_DATA_ALLOCA (XGUI_ITEM (item)->name,
+ tvitem.pszText);
+ }
+ else
+ {
+ CHECK_STRING (item);
+ GET_C_STRING_OS_DATA_ALLOCA (item, tvitem.pszText);
+ }
+
+ tvitem.cchTextMax = strlen (tvitem.pszText);
+
+ if ((ret = (TC_ITEM*)SendMessage (wnd, TCM_INSERTITEM,
+ index, (LPARAM)&tvitem)) < 0)
+ signal_simple_error ("error adding tab entry", item);
+
+ return ret;
+}
+
+static void
+mswindows_tab_control_instantiate (Lisp_Object image_instance, Lisp_Object instantiator,
+ Lisp_Object pointer_fg, Lisp_Object pointer_bg,
+ int dest_mask, Lisp_Object domain)
+{
+ Lisp_Object rest;
+ HWND wnd;
+ int index = 0;
+ struct Lisp_Image_Instance *ii = XIMAGE_INSTANCE (image_instance);
+ mswindows_widget_instantiate (image_instance, instantiator, pointer_fg,
+ pointer_bg, dest_mask, domain, WC_TABCONTROL,
+ /* borders don't suit tabs so well */
+ WS_TABSTOP,
+ WS_EX_CONTROLPARENT);
+
+ wnd = WIDGET_INSTANCE_MSWINDOWS_HANDLE (ii);
+ /* add items to the tab */
+ LIST_LOOP (rest, XCDR (IMAGE_INSTANCE_WIDGET_ITEMS (ii)))
+ {
+ add_tab_item (image_instance, wnd, XCAR (rest), domain, index);
+ index++;
+ }
+}
+
+/* set the properties of a tab control */
+static Lisp_Object
+mswindows_tab_control_set_property (Lisp_Object image_instance, Lisp_Object prop,
+ Lisp_Object val)
+{
+ struct Lisp_Image_Instance *ii = XIMAGE_INSTANCE (image_instance);
+
+ if (EQ (prop, Q_items))
+ {
+ HWND wnd = WIDGET_INSTANCE_MSWINDOWS_HANDLE (ii);
+ int index = 0;
+ Lisp_Object rest;
+ check_valid_item_list_1 (val);
+
+ /* delete the pre-existing items */
+ SendMessage (wnd, TCM_DELETEALLITEMS, 0, 0);
+
+ IMAGE_INSTANCE_WIDGET_ITEMS (ii) =
+ Fcons (XCAR (IMAGE_INSTANCE_WIDGET_ITEMS (ii)),
+ parse_gui_item_tree_children (val));
+
+ /* add items to the tab */
+ LIST_LOOP (rest, XCDR (IMAGE_INSTANCE_WIDGET_ITEMS (ii)))
+ {
+ add_tab_item (image_instance, wnd, XCAR (rest),
+ IMAGE_INSTANCE_SUBWINDOW_FRAME (ii), index);
+ index++;
+ }
+
+ return Qt;
+ }
+ return Qunbound;