diff -r 69e8e0936858 -r b9dc9cdfa23a ui/wpf/toolkit.c
--- a/ui/wpf/toolkit.c	Sun Jan 22 11:48:50 2017 +0100
+++ b/ui/wpf/toolkit.c	Sun Jan 22 17:23:20 2017 +0100
@@ -37,6 +37,18 @@
     UIinit(appname);
 }
 
+void ui_onstartup(ui_callback f, void *userdata) {
+    UIonstartup(f, userdata);
+}
+
+void ui_onopen(ui_callback f, void *userdata) {
+    UIonopen(f, userdata);
+}
+
+void ui_onexit(ui_callback f, void *userdata) {
+    UIonexit(f, userdata);
+}
+
 void ui_main() {
     UImain();
 }