How can I store the mouse position (and preferably time stamps) while playing a video?

I have to do video annotation, for storing the actual mouse cursor position at different instant of a video. I checked MATLAB VideoPlayer documentation. How can I have a GUI handle for the video in order to get the mouse position (and preferably the time)? Also, how can I have a condition not to have the mouse positions saved during the instants object is absent in the video. Thanks a lot, in advance.

[CuriousThinker]

Hi. This is the code I have:

function varargout = Annotate_GUI(varargin)
% ANNOTATE_GUI MATLAB code for Annotate_GUI.fig
%      ANNOTATE_GUI, by itself, creates a new ANNOTATE_GUI or raises the existing
%      singleton*.
%
%      H = ANNOTATE_GUI returns the handle to a new ANNOTATE_GUI or the handle to
%      the existing singleton*.
%
%      ANNOTATE_GUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in ANNOTATE_GUI.M with the given input arguments.
%
%      ANNOTATE_GUI('Property','Value',...) creates a new ANNOTATE_GUI or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before Annotate_GUI_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to Annotate_GUI_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

 % Edit the above text to modify the response to help Annotate_GUI

 % Last Modified by GUIDE v2.5 02-Oct-2018 01:39:19

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                 'gui_Singleton',  gui_Singleton, ...
                 'gui_OpeningFcn', @Annotate_GUI_OpeningFcn, ...
                 'gui_OutputFcn',  @Annotate_GUI_OutputFcn, ...
                 'gui_LayoutFcn',  [] , ...
                 'gui_Callback',   []);
 if nargin && ischar(varargin{1})
  gui_State.gui_Callback = str2func(varargin{1});
 end

   if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
   else
    gui_mainfcn(gui_State, varargin{:});
   end
   % End initialization code - DO NOT EDIT

   % --- Executes just before Annotate_GUI is made visible.
   function Annotate_GUI_OpeningFcn(hObject, eventdata, handles, varargin)
   % This function has no output args, see OutputFcn.
   % hObject    handle to figure
   % eventdata  reserved - to be defined in a future version of MATLAB
   % handles    structure with handles and user data (see GUIDATA)
   % varargin   command line arguments to Annotate_GUI (see VARARGIN)

   % Choose default command line output for Annotate_GUI
   handles.output = hObject;

   % Update handles structure
   guidata(hObject, handles);

   % UIWAIT makes Annotate_GUI wait for user response (see UIRESUME)
   % uiwait(handles.figure1);

   % --- Outputs from this function are returned to the command line.
   function varargout = Annotate_GUI_OutputFcn(hObject, eventdata, handles) 
   % varargout  cell array for returning output args (see VARARGOUT);
   % hObject    handle to figure
   % eventdata  reserved - to be defined in a future version of MATLAB
   % handles    structure with handles and user data (see GUIDATA)

   % Get default command line output from handles structure
   varargout{1} = handles.output;
   % end
   % --- Executes on button press in pushbutton1.
   function pushbutton1_Callback(hObject, eventdata, handles)
   % hObject    handle to pushbutton1 (see GCBO)
   % eventdata  reserved - to be defined in a future version of MATLAB
   % handles    structure with handles and user data (see GUIDATA)
   handles=guidata(hObject); 
   if true
      handles.output = hObject;
      axeshandle= handles.axes1; 
      axes(axeshandle);
      axeshandle.fh = figure('numbertitle', 'off', ...
               'name', 'Video In Custom GUI', ...
               'menubar','none', ...
               'toolbar','none', ...
               'resize', 'on', ...
               'tag',figTag, ...
               'renderer','painters', ...
               'position',[680 678 480 240],...
               'HandleVisibility','callback'); % hide the handle to prevent 
          unintended modifications of our custom UI

    % Fill the structure with data.
    axeshandle.AXP = get(axeshandle.ax,'pos');
    axeshandle.tx(1) = uicontrol('style','tex',...
                    'unit','pix',...
                    'posit',[50 395 250 22],...
                    'backg',get(axeshandle.fh,'color'),...
                    'fontsize',12,'fontweight','bold',... 
                    'string','Current Pointer Axes:');
     % This textbox will display the current position of the mouse.
     axeshandle.tx(2) = uicontrol('style','tex',...
                    'unit','pix',...
                    'position',[310 395 120 25],...
                    'backg',get(axeshandle.fh,'color'),...
                    'fontsize',12,'fontweight','bold' );
   set(axeshandle.fh,'windowbuttonmotionfcn',{@fh_wbmfcn_v2,axeshandle}) % 
   Set the motion detector.
   mov = vision.VideoFileReader('A1_PreTBI_01212015.wmv');
   % himage=image(zeros(640, 480, 3),'parent', handles.axes1);
   % preview(vid,himage);
   nFrames=mov.NumberOfFrames;
   v=findall(0, 'type', 'axes', 'tag', 'VideoAxes');
   axeshandle.ax=v; 

   set(axeshandle.ax,'unit','pix');
   for i=1:nFrames
       img=readframe(mov,i);
       himage=image(size(img),'parent', axeshandle);
       imshow(img,himage);
       drawnow;
   end
% guidata(hObject,handles)
   end
   guidata(hObject,handles)
   end

   % --- Executes on button press in pushbutton2.
   function pushbutton2_Callback(hObject, eventdata, handles)
   % hObject    handle to pushbutton2 (see GCBO)
   % eventdata  reserved - to be defined in a future version of MATLAB
   % handles    structure with handles and user data (see GUIDATA)
    end 

   % --- Executes on button press in pushbutton3.
   function pushbutton3_Callback(hObject, eventdata, handles)
   % hObject    handle to pushbutton3 (see GCBO)
   % eventdata  reserved - to be defined in a future version of MATLAB
   % handles    structure with handles and user data (see GUIDATA)
   end

   function exit_Callback(hObject, eventdata, handles)
   if isfield(handles.axes1, 'mov') && ~isempty(handles.axes1.mov)
     delete(handles.axes1.mov); % or close, whatever is relevant
     handles.axes1.mov = [];
     guidata(hObject, handles)
   end
   end

   function fh_wbmfcn_v2(varargin)
   % WindowButtonMotionFcn for the figure.
   S = varargin{3};  % Get the structure.
   set(S.tx(2),'string','None')
   F = get(S.fh,'CurrentPoint');  % The current point w.r.t the figure.
   % Figure out of the current point is over the axes or not -> logicals.
   tf1 = S.AXP(1,1)<= F(1) && F(1) <= S.AXP(1,1) + S.AXP(1,3);
   tf2 = S.AXP(1,2) <= F(2) && F(2) <= S.AXP(1,2) + S.AXP(1,4);
   if tf1 && tf2
      set(S.tx(2),'str',['Axes ' num2str(1)])
      disp(['Current point(X,Y):(',num2str(F(1)),',',num2str(F(2)),')'])
   else
      set(S.tx(2),'str',['Axes ' num2str(1)])
      disp(['Current point(X,Y):(',num2str(F(1)),',',num2str(F(2)),')'])

   end
 % end
   end
   end
   function frequency_axes_Createfcn(varargin)
   end
   end
   end

But when I am running the code, I get the following error:

   Undefined function or variable 'Annotate_GUI_OutputFcn'.

    Error in gui_mainfcn (line 264)
        feval(gui_State.gui_OutputFcn, gui_hFigure, [], gui_Handles);

    Error in Annotate_GUI (line 42)
    gui_mainfcn(gui_State, varargin{:});

    Undefined function or variable 'pushbutton1_Callback'.

    Error in gui_mainfcn (line 95)
        feval(varargin{:});

    Error in Annotate_GUI (line 42)
    gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)Annotate_ 
GUI('pushbutton1_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

Appreciate help. Thanks in advance.