"WindowButtonMotionFcn and Current Points For an Image": How can i access the tracked values (Current Points x and Y) for further analysis.

Below is my attempt. I can plot the current points but can't get them stored into a variable.

I believe it has to do with storing them as XData or YData, with proper axis handles. But i'm really breaking my heads for a week now to get it right. I tried using 'GTrack', 'MouseTrack' (works well only if i use imagesc) and similar files from file-exchange. They all helped me to get a better understanding of mouse tracking and plot, but don't output the X and Y variables.

(P.S: Right now going through the 41 GUI examples by MATT)

Appreciate any hint or any links that can help my cause.

Thanks!

Arun.

%%%%%%%

function test
fig= figure();
imshow(imROI); axis on; hold on;
set(gcf,'Pointer','crosshair');
set(gcf,'WindowButtonDownFcn',@wbdcb);

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5

      function wbdcb (varargin)
          set(gcf,'WindowButtonMotionFcn',@wbmcb);
      end

      function wbmcb(varargin)

          cp=get(gca,'CurrentPoint'); cp=round(cp);
          col=cp(1,1); row=cp(1,2);
          set (gcf,'WindowButtonUpFcn',@wbucb);
          plot(col,row,'y.');
          drawnow
          %             save('test.mat','cpt');        

      end

      function wbucb(varargin)

          set(gcf,'WindowButtonDownFcn','');
          close all;
      end