Do not hide non-existing widgets (e.g. on HermesLite2)

diff --git a/tx_menu.c b/tx_menu.c
index b411e58ea8e455ae20807930e1128e7f04373953..76edcc2b4969449edae4d9b00533e01c4888cc28 100644 (file)
--- a/tx_menu.c
+++ b/tx_menu.c
@@ -556,9 +556,10 @@ void tx_menu(GtkWidget *parent) {
 
 
   if(transmitter->local_microphone && (protocol==ORIGINAL_PROTOCOL || protocol==NEW_PROTOCOL)) {
-    gtk_widget_hide(micin_b);
-    gtk_widget_hide(linein_b);
-    gtk_widget_hide(micboost_b);
+    // If device has no microphone input, these widgest may not exist
+    if (micbin_b != NULL)   gtk_widget_hide(micin_b);
+    if (linein_b != NULL)   gtk_widget_hide(linein_b);
+    if (micboost_b != NULL) gtk_widget_hide(micboost_b);
   }
 
 }