diff -r eb5269000bc8 -r eeb50c534497 application/main.c
--- a/application/main.c	Sun Dec 08 11:20:41 2013 +0000
+++ b/application/main.c	Fri Mar 21 13:20:53 2014 +0100
@@ -31,6 +31,15 @@
 
 #include <ui/ui.h>
 
+typedef struct TestDocument {
+    UiInteger check1;
+} TestDocument;
+
+typedef struct TestWindowData {
+    TestDocument *doc1;
+    TestDocument *doc2;
+} TestWindowData;
+
 UiInteger check1;
 
 void action_new(UiEvent *event, void *data) {
@@ -40,13 +49,29 @@
 }
 
 void action_open(UiEvent *event, void *data) {
-    printf("check1: %s\n", ui_window_getint(event->obj, "check1") ? "true" : "false");
+    //printf("check1: %s\n", ui_getint(event->obj, "check1") ? "true" : "false");
+    TestDocument *doc = event->document;
+    printf("check1: %s\n", ui_getval(doc->check1) ? "true" : "false");
 }
 
 void action_close(UiEvent *event, void *data) {
     exit(0);
 }
 
+void action_doc1(UiEvent *event, void *data) {
+    TestWindowData *wdata = event->window;
+    if(event->obj->document != wdata->doc1) {
+        ui_set_document(event->obj, wdata->doc1);
+    }
+}
+
+void action_doc2(UiEvent *event, void *data) {
+    TestWindowData *wdata = event->window;
+    if(event->obj->document != wdata->doc2) {
+        ui_set_document(event->obj, wdata->doc2);
+    }
+}
+
 int main(int argc, char** argv) {
     ui_init("app1", argc, argv);
     
@@ -54,12 +79,24 @@
     ui_menuitem("New", action_new, NULL);
     ui_menuitem("Open", action_open, NULL);
     ui_menuseparator();
+    ui_menuitem("Dokument 1", action_doc1, NULL);
+    ui_menuitem("Dokument 2", action_doc2, NULL);
+    ui_menuseparator();
     ui_checkitem_nv("Check", "check1");
     ui_menuitem("Close", action_close, NULL);
     
     UiObject *window = ui_window("Mod0", NULL);
+    TestWindowData *wdata = malloc(sizeof(TestWindowData));
+    window->window = wdata;
     
+    TestDocument *doc1 = ui_document_new(sizeof(TestDocument));
+    TestDocument *doc2 = ui_document_new(sizeof(TestDocument));
+    ui_document_regint(doc1, "check1", &doc1->check1);
+    ui_document_regint(doc2, "check1", &doc2->check1);
+    wdata->doc1 = doc1;
+    wdata->doc2 = doc2;
     
+    ui_set_document(window, doc1);
     
     //ui_window_addint(window, "check1");
     ui_show(window);