Get variable from edittext

Hey, basicly I made a gui with 3 inputtext fields and a button. When pressing the button it should put the data from the input field into a variable and then start a function with these variables. If i declare the variables with just a regular variable it seems to work.(see commented example) How do i read the edittext?

    % --- Executes on button press in pushbutton1.
    function pushbutton1_Callback(hObject, eventdata, handles)

    disp('start running code');

    handles = guidata(hObject);
    var1 = get(handles.edit1, 'string');
    var2 = get(handles.edit2, 'string');
    var3 = get(handles.edit3, 'string');

    %var1 = 2;
    %var2 = 0.5;
    %var3 = 300;

    freessimulatie(var1,var2,var3);

Answer 1

[Ben Aerens]

I fixed it.

I used this instead.

   edit1 = findobj(0, 'tag', 'edit1');
   var1 = str2double( get(edit1, 'string') );

   edit2 = findobj(0, 'tag', 'edit2');
   var2 = str2double( get(edit2, 'string') );

   edit3 = findobj(0, 'tag', 'edit3');
   var3 = str2double( get(edit3, 'string') );

Answer 2

[Walter Roberson]

    var1 = str2double( get(handles.edit1, 'string') );
    var2 = str2double( get(handles.edit2, 'string') );
    var3 = str2double( get(handles.edit3, 'string') );

[Ben Aerens]

I still get errors. This is what I get

Dot indexing is not supported for variables of this type.

Error in calculateBerekening>pushbutton1_Callback (line 83) var1 = str2double( get(handles.edit1, 'string') );

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

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

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)calculateBerekening('pushbutton1_Callback',hObject,eventdata,guidata(hObject)) Error while evaluating UIControl Callback.

[Walter Roberson]

That implies that handles was not a handles structure, which is a problem that would be associated with CreateFcn but not with pushbutton callbacks.