Remove
'Callback', @nameinput_Callback
from your definition of nameinput
However, you have the problem that your define
function submitbtn_Callback(hObject, eventdata, handles)
and you do use handles in the body of that function, so three parameters need to be passed to that routine. But
'Callback', @submitbtn_Callback
says that only two parameters should be passed to the routine -- the hObject and eventdata for the callback. MATLAB does not pass three parameters to callbacks automatically; GUIDE cheats and programs a different actual callback property that pulls out the current version of handles and then calls the callback routine with that and the other two parameters.
Unfortunately for you, with the code you have designed, there is no way to know where to fetch the handle structure from. The handle structure is not global: there is one handle structure per GUI, but a GUI might involve multiple figures.
The good news on that front is that because you created your boxes dynamically, they are not in the handles structure anyhow. So you can program around that fact you don't know where the handle structure. And the way to do that is to construct the edit field first and pass its handle when constructing the pushbutton callback:
function window
%Generate the actual window prompt
name_window = figure;
set(name_window, 'MenuBar', 'none',...
'ToolBar', 'none',...
'Name','Please Enter Your Name',...
'NumberTitle','off')
%Add in edit box and submit buttons
%edit box before button
nameinput = uicontrol('Style', 'edit',...
'Position',[235 250 100 40]);
%so that the handle of the edit box is known to pass to the pushbutton callback
submitbtn = uicontrol('Style','pushbutton',...
'String','Submit',...
'Position',[235 190 100 40],...
'Callback', {@submitbtn_Callback, nameinput});
end
function submitbtn_Callback(hObject, eventdata, nameinput)
%Define "name" variable given the text field input
name = char(get(nameinput, 'String'));
disp(name);
end
