What Does Each Element of This Syntax Mean?

I create a push button in GUIDE. When I create a callback function for it, it automatically creates the syntax below:

Could you please explain what each element of this syntax mean?

Answer 1

[Jan]

1. @() means the creation of an anonymous function.
2. @(hObject, eventdata) is an anoynmous function with 2 inputs.
3. The body of this anonymous function is

PushButton('pushbutton1_Callback', hObject, eventdata, guidata(hObject))

1. (Dull formatting in th forum, this is 4.!) This means, that the function "PushButton" is called with the 2 inputs of the anonymous function and as 3rd input the current value of the handles struct is obatined from the figure.

To reduce the levels of indirection and for simplicity this might be a valid callback also:

@pushbutton1_Callback

with this definition of the function:

function pushbutton1_Callback(hObject, eventdata)
handles = guidata(hObject);
...

[Rightia Rollmann]

Thanks! Could you give me another example (preferably, an example that can be run as a script) of such code? I am stilling struggling with its syntax.

[Jan]

• https://www.mathworks.com/matlabcentral/fileexchange/24861-41-complete-gui-examples

And search in the forum:

• https://www.mathworks.com/matlabcentral/answers/?term=share+data+callbacks

I cannot provide some code directly, when you do not explain, what it should do.