diff --git a/src/gtk/mainwindow.c b/src/gtk/mainwindow.c
index c01ffe7..a27079d 100644
--- a/src/gtk/mainwindow.c
+++ b/src/gtk/mainwindow.c
@@ -97,6 +97,12 @@
 	set_integer_to_config("terminal","model",id);
  }
 
+ static void selecting(GtkWidget *widget, gboolean on, GtkActionGroup **group)
+ {
+	trace("Widget %p selection state changed to %s",widget,on ? "Yes" : "No");
+	gtk_action_group_set_sensitive(group[ACTION_GROUP_SELECTION],on);
+ }
+
  static void setup_input_method(GtkWidget *widget, GtkWidget *obj)
  {
 	GtkWidget *menu	= gtk_menu_new();
@@ -212,6 +218,7 @@
 	g_signal_connect(terminal,"connected",G_CALLBACK(connected),group);
 	g_signal_connect(terminal,"update_config",G_CALLBACK(update_config),0);
 	g_signal_connect(terminal,"model_changed",G_CALLBACK(update_model),0);
+	g_signal_connect(terminal,"selecting",G_CALLBACK(selecting),group);
 
 	g_free(path);
 	gtk_widget_grab_focus(terminal);
diff --git a/src/gtk/v3270/genmarshal b/src/gtk/v3270/genmarshal
index 7a4a76f..835ba71 100644
--- a/src/gtk/v3270/genmarshal
+++ b/src/gtk/v3270/genmarshal
@@ -5,3 +5,4 @@ VOID:VOID,POINTER
 VOID:VOID,POINTER,POINTER
 VOID:VOID,UINT,POINTER
 BOOL:VOID,UINT,ENUM
+VOID:VOID,BOOL
diff --git a/src/gtk/v3270/private.h b/src/gtk/v3270/private.h
index 2722add..ad77254 100644
--- a/src/gtk/v3270/private.h
+++ b/src/gtk/v3270/private.h
@@ -72,6 +72,7 @@ G_BEGIN_DECLS
  	SIGNAL_DISCONNECTED,
  	SIGNAL_UPDATE_CONFIG,
  	SIGNAL_MODEL_CHANGED,
+ 	SIGNAL_SELECTING,
 
  	LAST_SIGNAL
  };
diff --git a/src/gtk/v3270/widget.c b/src/gtk/v3270/widget.c
index c07fecb..c089274 100644
--- a/src/gtk/v3270/widget.c
+++ b/src/gtk/v3270/widget.c
@@ -236,6 +236,14 @@ static void v3270_class_init(v3270Class *klass)
 						pw3270_VOID__VOID_UINT_POINTER,
 						G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_STRING);
 
+	v3270_widget_signal[SIGNAL_SELECTING] =
+		g_signal_new(	"selecting",
+						G_OBJECT_CLASS_TYPE (gobject_class),
+						G_SIGNAL_RUN_FIRST,
+						0,
+						NULL, NULL,
+						pw3270_VOID__VOID_BOOL,
+						G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
 }
 
 void v3270_update_font_metrics(v3270 *terminal, cairo_t *cr, int width, int height)
@@ -389,6 +397,11 @@ static void update_model(H3270 *session, const char *name, int model, int rows, 
 	g_signal_emit(GTK_WIDGET(session->widget),v3270_widget_signal[SIGNAL_MODEL_CHANGED], 0, (guint) model, name);
 }
 
+static void set_selection(H3270 *session, unsigned char status)
+{
+	g_signal_emit(GTK_WIDGET(session->widget),v3270_widget_signal[SIGNAL_SELECTING], 0, status ? TRUE : FALSE);
+}
+
 static void v3270_init(v3270 *widget)
 {
 	trace("%s",__FUNCTION__);
@@ -400,11 +413,12 @@ static void v3270_init(v3270 *widget)
 		return;
 	}
 
-	widget->host->widget = widget;
+	widget->host->widget			= widget;
 
 	widget->host->update			= v3270_update_char;
 	widget->host->changed			= changed;
 	widget->host->set_timer 		= set_timer;
+	widget->host->set_selection		= set_selection;
 
 	widget->host->update_luname		= update_luname;
 	widget->host->configure			= update_screen_size;
diff --git a/src/include/lib3270/session.h b/src/include/lib3270/session.h
index 6097f50..93f290f 100644
--- a/src/include/lib3270/session.h
+++ b/src/include/lib3270/session.h
@@ -132,6 +132,7 @@
 		void (*set_timer)(H3270 *session, unsigned char on);
 		void (*erase)(H3270 *session);
 		void (*cursor)(H3270 *session, LIB3270_CURSOR id);
+		void (*set_selection)(H3270 *session, unsigned char on);
 
 	};
 
diff --git a/src/lib3270/glue.c b/src/lib3270/glue.c
index 8f1d324..fea472b 100644
--- a/src/lib3270/glue.c
+++ b/src/lib3270/glue.c
@@ -170,6 +170,11 @@ static void update_char(H3270 *session, int addr, unsigned char chr, unsigned sh
 
 }
 
+static void nop_char(H3270 *session, unsigned char chr)
+{
+
+}
+
 static void lib3270_session_init(H3270 *hSession, const char *model)
 {
 	int 	ovc, ovr;
@@ -180,7 +185,8 @@ static void lib3270_session_init(H3270 *hSession, const char *model)
 	hSession->sz = sizeof(H3270);
 
 	// A few dummy calls to avoid "ifs"
-	hSession->update = update_char;
+	hSession->update 		= update_char;
+	hSession->set_selection = nop_char;
 
 
 	hSession->sock = -1;
diff --git a/src/lib3270/selection.c b/src/lib3270/selection.c
index 4b78404..2ce2f31 100644
--- a/src/lib3270/selection.c
+++ b/src/lib3270/selection.c
@@ -175,6 +175,9 @@ LIB3270_EXPORT void lib3270_clear_selection(H3270 *session)
 				session->update(session,a,ea_buf[a].chr,ea_buf[a].attr,a == session->cursor_addr);
 		}
 	}
+
+	session->set_selection(session,0);
+
 }
 
 
@@ -182,11 +185,14 @@ LIB3270_EXPORT void lib3270_select_to(H3270 *session, int baddr)
 {
 	CHECK_SESSION_HANDLE(session);
 
-	if(session->selected.begin < 0)
-		session->selected.begin = session->selected.end = session->cursor_addr;
-
 	lib3270_set_cursor_address(session,session->selected.end = baddr);
 
+	if(session->selected.begin < 0)
+	{
+		session->selected.begin = session->cursor_addr;
+		session->set_selection(session,1);
+	}
+
 	update_selection(session);
 
 }
--
libgit2 0.21.2