code for a delete button in matlab gui

hello :) im doing a scientificcalculator GUI in Matlab, how can I code for a delete button for my calculator? its like deleting(just like backspace) characters from a static text box?

[L.J.]

Answer 1

[jaybee]

could you make it simplier? im a starter in gui making.

[Matt J]

Simpler in what way? Which of the 3 steps I outlined don't you know how to do? Hopefully, step 2 was straightforward enough. I gave you a direct example.

[jaybee]

function pushbutton20_Callback(hObject, eventdata, handles)

screen = get(handles.text1, 'String');

screen = strcat( screen );

set( handles.text1, 'String', fprintf('%f\b\n', screen))

itried this but it failed, what should i edit here?

[Matt J]

screen = get(handles.text1, 'String');

screen(end)='';

set( handles.text1, 'String', screen)

[jaybee]

thankyou so much matt j :)

Answer 2

[Jan]

Care for the empty input also:

screen = get(handles.text1, 'String');
if ~isempty(screen) 
  screen(end)='';
  set(handles.text1, 'String', screen);
end

[jaybee]

thanks this would also help :)

Answer 3

[Matt J]

In the callback for the delete button you would

(1) Read the string from the text box.

(2) Truncate the string like in the example below

(3) Write the truncated string back into the text box

>> str='myString'

str =

myString

>> str(end)='' %truncate

str =

myStrin