diff --git a/kintox11/binary/kintox11_ubuntu19-10 b/kintox11/binary/kintox11_ubuntu19-10
index 88f2955..4e6ae5a 100755
Binary files a/kintox11/binary/kintox11_ubuntu19-10 and b/kintox11/binary/kintox11_ubuntu19-10 differ
diff --git a/kintox11/src/kintox11.c b/kintox11/src/kintox11.c
index 84bb958..717708e 100644
--- a/kintox11/src/kintox11.c
+++ b/kintox11/src/kintox11.c
@@ -6,7 +6,7 @@
   http://k-ui.jp/blog/2012/05/07/get-active-window-on-x-window-system/
  */
 // To compile
-// gcc active_window.c -lX11 -lXmu
+// gcc kintox11.c -lX11 -lXmu
 //
 //
 
@@ -61,82 +61,8 @@ Window get_focus_window(Display* d){
   return w;
 }
 
-// get the top window.
-// a top window have the following specifications.
-//  * the start window is contained the descendent windows.
-//  * the parent window is the root window.
-Window get_top_window(Display* d, Window start){
-  Window w = start;
-  Window parent = start;
-  Window root = None;
-  Window *children;
-  unsigned int nchildren;
-  Status s;
 
-  while (parent != root) {
-    w = parent;
-    s = XQueryTree(d, w, &root, &parent, &children, &nchildren); // see man
-
-    if (s)
-      XFree(children);
-
-    if(xerror){
-      printf("failed to get top window\n");
-      exit(1);
-    }
-  }
-
-  return w;
-}
-
-// search a named window (that has a WM_STATE prop)
-// on the descendent windows of the argment Window.
-Window get_named_window(Display* d, Window start){
-  Window w;
-  w = XmuClientWindow(d, start); // see man
-  if(w == start)
-  return w;
-}
-
-// (XFetchName cannot get a name with multi-byte chars)
-void print_window_name(Display* d, Window w){
-  XTextProperty prop;
-  Status s;
-
-  s = XGetWMName(d, w, &prop); // see man
-  if(!xerror && s){
-    int count = 0, result;
-    char **list = NULL;
-    result = XmbTextPropertyToTextList(d, &prop, &list, &count); // see man
-    if(result == Success){
-      printf("\t%s\n", list[0]);
-    }else{
-      // printf("ERROR: XmbTextPropertyToTextList\n");
-    }
-  }else{
-    // printf("ERROR: XGetWMName\n");
-  }
-}
-
-void print_window_class(Display* d, Window w){
-  Status s;
-  XClassHint* class;
-
-  class = XAllocClassHint(); // see man
-  if(xerror){
-    // printf("ERROR: XAllocClassHint\n");
-  }
-
-  s = XGetClassHint(d, w, class); // see man
-  if(xerror || s){
-    // printf("\tname: %s\n\tclass: %s\n", class->res_name, class->res_class);
-    printf("%s\n", class->res_class);
-  }else{
-    printf("ERROR: XGetClassHint\n");
-  }
-}
-
-const char * str_window_class(Display* d, Window w){
+const char * str_window_class(Display* d, Window w, char *prior_app ){
   Status s;
   XClassHint* class;
 
@@ -153,17 +79,13 @@ const char * str_window_class(Display* d, Window w){
     // printf("\tname: %s\n\tclass: %s\n", class->res_name, class->res_class);
     return app_class;
   }else{
-    char * error_msg;
-    error_msg = malloc(sizeof(char)*50);
-    strcpy(error_msg, "ERROR: XGetClassHint");
-    return error_msg;
+    // char * error_msg;
+    // error_msg = malloc(sizeof(char)*50);
+    // strcpy(error_msg, "ERROR: XGetClassHint");
+    return prior_app;
   }
 }
 
-void print_window_info(Display* d, Window w){
-  print_window_class(d, w);
-}
-
 int main(void){
 
   char line[RSIZ][LSIZ];
@@ -181,13 +103,6 @@ int main(void){
   }
   tot = i;
 
-  // printf("\n The content of the file %s  are : \n","./appnames.csv");    
-  // for(i = 0; i < tot; ++i)
-  // {
-  //     printf("%s\n", line[i]);
-  // }
-  // printf("\n");
-
   Display* d;
   Window w;
 
@@ -206,46 +121,42 @@ int main(void){
 
   // get active window
   w = get_focus_window(d);
-  w = get_top_window(d, w);
-  w = get_named_window(d, w);
 
   for (;;)
   {
 
-    if(strcmp(str_window_class(d, w),prior_app)){
+    if(strcmp(str_window_class(d, w,prior_app),prior_app)){
       int len = sizeof(line)/sizeof(line[0]);
       // printf("length: %d\n",len);
       int i;
       for(i = 0; i < len; ++i){
         // printf("i: %d\n",i);
-        // printf(strcicmp(line[i], str_window_class(d, w)));
-        if((strcicmp(line[i], str_window_class(d, w)) == 0 && (remap_bool == 1 || remap_bool == 2))) {
+        // printf(strcicmp(line[i], str_window_class(d, w, prior_app)));
+        if((strcicmp(line[i], str_window_class(d, w,prior_app)) == 0 && (remap_bool == 1 || remap_bool == 2))) {
             // printf("Gotcha!\n");
-            // printf("%s - prior app %s\n",str_window_class(d, w),prior_app);
+            // printf("%s - prior app %s\n",str_window_class(d, w, prior_app),prior_app);
             printf("%s\n","term");
             remap_bool = 0;
             fflush(stdout);
             break;
         }
-        else if((strcicmp(line[i], str_window_class(d, w)) == 0 && remap_bool == 0)){
+        else if((strcicmp(line[i], str_window_class(d, w,prior_app)) == 0 && remap_bool == 0)){
           break;
         }
         else if (i == 49 && (remap_bool == 0 || remap_bool == 2)){
           printf("%s\n","gui");
-          // printf("no match - %s - prior app %s\n",str_window_class(d, w),prior_app);
+          // printf("no match - %s - prior app %s\n",str_window_class(d, w, prior_app),prior_app);
           remap_bool = 1;
           fflush(stdout);
           break;
         }
       }
     }
-    strcpy(prior_app,str_window_class(d, w));
+    strcpy(prior_app,str_window_class(d, w, prior_app));
 
     XEvent e;
     XNextEvent(d, &e);
-    // get active window
     w = get_focus_window(d);
-    w = get_top_window(d, w);
-    w = get_named_window(d, w);
+
   }
 }
\ No newline at end of file