diff -r 36f1581b43e2 -r 40dbf1a7526a ui/motif/window.c
--- a/ui/motif/window.c	Sun Jan 24 12:39:05 2016 +0100
+++ b/ui/motif/window.c	Sun Jan 24 18:47:39 2016 +0100
@@ -42,6 +42,19 @@
 static int window_default_height = 500;
 
 static void window_close_handler(Widget window, void *udata, void *cdata) {
+    UiObject *obj = udata;
+    UiEvent ev;
+    ev.window = obj->window;
+    ev.document = obj->ctx->document;
+    ev.obj = obj;
+    ev.eventdata = NULL;
+    ev.intval = 0;
+    
+    if(obj->ctx->close_callback) {
+        obj->ctx->close_callback(&ev, obj->ctx->close_data);
+    }
+    // TODO: free UiObject
+    
     nwindows--;
     if(nwindows == 0) {
         ui_exit_mainloop();