--- tigervnc-1.3.0/vncviewer/DesktopWindow.cxx  2013-07-01 14:42:06.000000000 +0200
+++ ../tigervnc-1.3.0/vncviewer/DesktopWindow.cxx   2013-11-02 04:51:44.447096532 +0100
@@ -59,6 +59,9 @@ DesktopWindow::DesktopWindow(int w, int
   : Fl_Window(w, h), cc(cc_), firstUpdate(true),
     delayedFullscreen(false), delayedDesktopSize(false)
 {
+  
+  grab_keyboard_state = 0;
+
   scroll = new Fl_Scroll(0, 0, w, h);
   scroll->color(FL_BLACK);

@@ -449,8 +452,10 @@ int DesktopWindow::fltkHandle(int event,
       //        a) Fl::grab(0) on X11 will release the keyboard grab for us.
       //        b) Gaining focus on the system level causes FLTK to switch
       //           window level on OS X.
-      if (dw->fullscreen_active())
+      if (dw->fullscreen_active()) {
         dw->grabKeyboard();
+   dw->grab_keyboard_state = 1;
+      }
       break;

     case FL_UNFOCUS:
@@ -458,6 +463,7 @@ int DesktopWindow::fltkHandle(int event,
       //        focus as it is very tied to this specific window on some
       //        platforms and we want to be able to open subwindows.
       dw->ungrabKeyboard();
+      dw->grab_keyboard_state = 0;
       break;
     }
   }
--- tigervnc-1.3.0/vncviewer/DesktopWindow.h    2013-07-01 14:42:05.000000000 +0200
+++ ../tigervnc-1.3.0/vncviewer/DesktopWindow.h 2013-11-02 04:53:30.975097085 +0100
@@ -81,12 +81,15 @@ public:

   void fullscreen_on();

-private:
-  static int fltkHandle(int event, Fl_Window *win);
+  int grab_keyboard_state;

   void grabKeyboard();
   void ungrabKeyboard();

+private:
+  static int fltkHandle(int event, Fl_Window *win);
+
+
   static void handleGrab(void *data);

   void maximizeWindow();
@@ -113,6 +116,9 @@ private:
   bool firstUpdate;
   bool delayedFullscreen;
   bool delayedDesktopSize;
+
+
+
 };

 #endif
--- tigervnc-1.3.0/vncviewer/Viewport.cxx   2013-07-01 14:42:05.000000000 +0200
+++ ../tigervnc-1.3.0/vncviewer/Viewport.cxx    2013-11-02 04:56:05.376802328 +0100
@@ -356,6 +356,8 @@ int Viewport::handle(int event)
   int buttonMask, wheelMask;
   DownMap::const_iterator iter;

+  DesktopWindow *dw = dynamic_cast<DesktopWindow*>(window());
+
   switch (event) {
   case FL_PASTE:
     buffer = new char[Fl::event_length() + 1];
@@ -434,9 +436,27 @@ int Viewport::handle(int event)
     while (!downKeySym.empty())
       handleKeyEvent(downKeySym.begin()->first, downKeySym.begin()->first,
                      "", false);
+    dw->ungrabKeyboard();
+    dw->fullscreen_off();
+
     return 1;

   case FL_KEYDOWN:
+    // Code to use Control_R as a grabKeyboard shortcut, as in remmina
+    if (menuKeyCode && (Fl::event_key() == (hostKeyMetaL ? FL_Meta_L : FL_Control_R)  ) ) {
+      if(dw->grab_keyboard_state == 0) {
+   dw->grab_keyboard_state = 1;
+   dw->grabKeyboard();
+      } 
+      else  {
+   dw->grab_keyboard_state = 0;
+   dw->fullscreen_off();
+   dw->ungrabKeyboard();
+      }
+      //window()->fullscreen_off();
+      vlog.debug("keyboard_grab key (ctrl-right) hit, keyboard grab state: %d\n", dw->grab_keyboard_state);
+    }
+    
     if (menuKeyCode && (Fl::event_key() == menuKeyCode)) {
       popupContextMenu();
       return 1;
--- tigervnc-1.3.0/vncviewer/parameters.cxx 2013-07-01 16:00:00.000000000 +0200
+++ ../tigervnc-1.3.0/vncviewer/parameters.cxx  2013-11-02 04:57:22.692802730 +0100
@@ -127,6 +127,10 @@ BoolParameter sendPrimary("SendPrimary",
                           "Send the primary selection and cut buffer to the "
                           "server as well as the clipboard selection",
                           true);
+BoolParameter hostKeyMetaL("HostKeyMetaL",
+              "Use the MetaL (Windows-Key) instead of "
+              "Control_R as the host key (grabKeyboard shortcut)",
+              false);

 StringParameter menuKey("MenuKey", "The key which brings up the popup menu",
                         "F8");
@@ -171,6 +175,7 @@ VoidParameter* parameterArray[] = {
   &acceptClipboard,
   &sendClipboard,
   &sendPrimary,
+  &hostKeyMetaL,
   &menuKey,
   &fullscreenSystemKeys
 };
--- tigervnc-1.3.0/vncviewer/parameters.h   2013-07-01 14:42:06.000000000 +0200
+++ ../tigervnc-1.3.0/vncviewer/parameters.h    2013-11-02 04:57:48.371802864 +0100
@@ -58,6 +58,8 @@ extern rfb::BoolParameter acceptClipboar
 extern rfb::BoolParameter sendClipboard;
 extern rfb::BoolParameter sendPrimary;

+extern rfb::BoolParameter hostKeyMetaL;
+
 extern rfb::StringParameter menuKey;

 extern rfb::BoolParameter fullscreenSystemKeys;