Keyboard interaction using GUI and callback error

Hallo! I've a GUI that upload images, make operation on that and than I show the result on a separate figure. Once the figure is showed I want to select some highlited objects using push buttons. This is the code of a button.

 function specie1_Callback(hObject, eventdata, handles)
 global stats L B path data count resolution Nimg;
 figure(1);
 [data count c] = riconosci(stats,L,B,resolution,1,data,count,Nimg);
 set (handles.sp1number, 'String', c );
 set (handles.total, 'String', num2str(size(data,1)-1));

When i use these buttons all works great but to perform the selection faster I'd like to select buttons with keyboard input and I try this code

 function figure1_WindowKeyPressFcn(hObject, eventdata, handles)
   switch eventdata.Key
  case '1'
     specie1_Callback
  case '2'
     specie2_Callback
  case '3'
     specie3_Callback
    end

But when I push the kay 1 for example( that activate the callback of button specie1) and than make the selection I have this error.

 ??? Input argument "handles" is undefined.
 Error in ==> interfaccia>specie1_Callback at 185
 set (handles.sp1number, 'String', c );
 Error in ==> interfaccia>figure1_WindowKeyPressFcn at 442    specie1_Callback
 Error in ==> gui_mainfcn at 96
        feval(varargin{:});
 Error in ==> interfaccia at 16
    gui_mainfcn(gui_State, varargin{:});

 Error in ==>
 @(hObject,eventdata)interfaccia('figure1_WindowKeyPressFcn',hObject,even tdata,guidata(hObject))
 ??? Error while evaluating figure WindowKeyPressFcn
 ??? Error using ==> feval
 Undefined function or method 'specie1_KeyPressFcn' for input arguments of type
 'struct'.

 Error in ==> gui_mainfcn at 96
        feval(varargin{:});
 Error in ==> interfaccia at 16
    gui_mainfcn(gui_State, varargin{:});

 Error in ==>
 @(hObject,eventdata)interfaccia('specie1_KeyPressFcn',hObject,eventdata,guidata(hObject))

??? Error while evaluating uicontrol KeyPressFcn

I don't understand where is the error. Thanks a lot in advance.

Answer 1

[Ingrid]

have you tried this:

function figure1_WindowKeyPressFcn(hObject, eventdata, handles)
   switch eventdata.Key
  case '1'
     specie1_Callback(hObject, eventdata, handles)
  case '2'
     specie2_Callback(hObject, eventdata, handles)
  case '3'
     specie3_Callback(hObject, eventdata, handles)
    end

it seems that you are not calling the function with the proper amount of inputs.

[Emanuele Gandola]

Great! It works! Maybe you know also the way to interact with the image whitout passing everytime for the main windows?

Thenks a lot!

[Ingrid]

I think I do not understand your question completely, but I think it is a better approach to write separate functions that are not pushbutton functions and that you call these functions with the keyPresFcn. Also the use of globals is not necessary normally.

[Walter Roberson]

I think you deleted your earlier question in which I had asked you to explain whether your GUI was different than your figure(1). Or perhaps it was closed and I cannot see it now. Either way, please show

fig1 = figure(1);
get(fig1, 'WindowKeyPressFcn')

Is it the same as

   @(hObject,eventdata)interfaccia('specie1_KeyPressFcn',hObject,eventdata,guidata(hObject))

?

What is the figure number associated with your GUI? Are you specifically opening figure(1) as a new figure? GUIDE does not normally manage multiple figures.