--- a/ui/winui/toolkit.h	Sun Jan 28 17:10:30 2024 +0100
+++ b/ui/winui/toolkit.h	Sun Jan 28 19:33:56 2024 +0100
@@ -30,6 +30,14 @@
 
 #include "../ui/toolkit.h"
 
+typedef struct UiJob {
+    UiObject* obj;
+    ui_threadfunc job_func;
+    void* job_data;
+    ui_callback   finish_callback;
+    void* finish_data;
+} UiJob;
+
 typedef void(*ui_eventfunc)(void*, void*);
 
 void ui_app_run_startup();