added uiGetItemCount()

oui.h

@@ -497,6 +497,9 @@ OUI_EXPORT int uiPrevSibling(int item);
 // Querying
 // --------
 
+// return the total number of allocated items
+OUI_EXPORT int uiGetItemCount();
+
 // return the current state of the item. This state is only valid after
 // a call to uiProcess().
 // The returned value is one of UI_COLD, UI_HOT, UI_ACTIVE, UI_FROZEN.
@@ -934,6 +937,12 @@ int uiGetExtendItem() {
     return ui_context->extend_item;
 }
 
+// return the total number of allocated items
+OUI_EXPORT int uiGetItemCount() {
+    assert(ui_context);
+    return ui_context->count;
+}
+
 UIitem *uiItemPtr(int item) {
     assert(ui_context && (item >= 0) && (item < ui_context->count));
     return ui_context->items + item;