--- a
+++ b/slider1_Callback.m
@@ -0,0 +1,27 @@
+
+% --- Executes on slider movement.
+function slider1_Callback(hObject, eventdata, handles)
+    % hObject    handle to slider1 (see GCBO)
+    % eventdata  reserved - to be defined in a future version of MATLAB
+    % handles    structure with handles and user data (see GUIDATA)
+
+    % Hints: get(hObject,'Value') returns position of slider
+    %        get(hObject,'Min') and get(hObject,'Max') to determine range of slider
+    
+    % Update the Threshold based on the new end values of the slider, stops any
+    % running timers, update box locations
+    script_update_Threshold_and_display;
+    
+    % handles.Bmode is false if the input data is Pulsed Doppler data
+    if( handles.Bmode ~= true ), 
+        handles.Message_Bar.String = "Slider Deactivated! Not required for pulsed Doppler";
+        return; 
+    end
+      
+    %Update the Message Bar
+    handles.Message_Bar.String  = 'Adjusting the Threshold for the removing noise'; 
+            
+    % Update handles structure
+    guidata(hObject, handles);
+    
+end
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