title: How to make an object current in GUI matlab?
body: <p>I build a function "sng_figureslide" which spawns a slider that can slide through all figures that are already created. I have to click on de slider to be able to control it with the arrow keys.</p>
  
  <p>I'm wondering if it is possible to make the slider-object active when I call the function so i don't have to click on the slider in advance.</p>
  
  <pre><code>function sng_figureslide
  
  figh=findobj('type','figure');
  figs=numel(figh);
  
  % if there are one or zero figures, the slider does not appear
  if figs &gt; 1
      sliderstep = 1/(figs-1);
  else
      return
  end
  
  fignumber = cell2mat(get(figh,'Number'));
  sliderfignumber = max(fignumber) + 1;
  figure(max(fignumber) +1)
  set(gcf,'position',[360 190 560 36]);
  set(gcf,'Toolbar','none');
  a=annotation('textbox',[0.03 0.2 0.1 0.7],'String',num2str(figs));
  
  uicontrol('Style', 'slider',...
      'Min',1,'Max',figs,'Value',figs,...  
      'Position', [80 10 470 20],...  
      'Callback', {@slider1,figh,a,figs,fignumber,sliderfignumber},...      
      'SliderStep', [sliderstep sliderstep]);
  end
  
  function slider1(hObj,~,figh,a,figs,fignumber,sliderfignumber)
      Val = round(get(hObj,'Value'));
      set(a,'String',num2str(Val));
      figure(figh(Val));
      figure(sliderfignumber);
  end
  </code></pre>
  
  <p>Besides, i think this function is pretty useful for many people so feel free to use it.</p>