diff -r 39cb60b6a81b -r 1d47e71f26b6 ui/server/toolkit.h
--- a/ui/server/toolkit.h	Mon Dec 08 16:21:24 2025 +0100
+++ b/ui/server/toolkit.h	Mon Dec 08 18:11:54 2025 +0100
@@ -34,15 +34,20 @@
 #include "../common/context.h"
 #include "../common/object.h"
 
+#include <cx/list.h>
 #include <cx/string.h>
 
 #ifdef	__cplusplus
 extern "C" {
 #endif
     
+typedef struct UiSrvObj UiSrvObj;
+    
 typedef struct UiServerEvent      UiServerEvent;
 typedef struct UiServerEventData  UiServerEventData;
 typedef void(*ui_srvevent_func)(UiServerEventData *event, void *userdata);
+
+typedef cxmutstr (*ui_serialize_func)(UiWidget *w);
     
 struct UiServerEventData {
     UiObject *obj;
@@ -56,6 +61,23 @@
     void *userdata;
 };
 
+struct UiSrvObj {
+    cxmutstr id;
+};
+
+struct UiWidget {
+    UiSrvObj *obj;
+    cxmutstr id;
+    UiVar *var;
+    cxmutstr var_id;
+    UiVarType var_type;
+    CxList *children;
+    cxmutstr args;
+    UiBool visible;
+    UiBool enabled;
+    ui_serialize_func *serialize;
+};
+
 void ui_server_message_received(cxstring msg);