Can I pass arguments to a @callbackFcn?

Hello,

I am reading some data from a serialport by using this function:

configureCallback(s,"terminator",@readSerialData)

The function looking like this

function readSerialData(s,~)
...
end

But how can I do to use arguments in the @readSerialData, for example I want to use this two arguments

function readSerialData(s,~,operation,mode)
...
end

How can I "pass" these two variables from the "configureCallback" line to the function?

Thank you!!

[Rik]

For general advice and examples for how to create a GUI have look at this thread.

Answer 1

[J. Alex Lee]

configureCallback(s,"terminator",@(src,evnt)readSerialData(src,evnt,operation mode))

So the first parentheses specify the interface to the function handle you want to create, and the second parentheses is the interface to the actual function you want to make a handle of. The variables in the first parantheses must appear as-is in the list of the second parantheses; they are the special inputs. The rest of the variables in the list of the 2nd parantheses will just be "static".

A simpler example might be

mySpecificFn = @(x)myGeneralFn(x,1,2,3)

function y = myGeneralFn(x,a,b,c)
y = a*x.^2 + b*x + c;
end

which you can kind of glean from some examples in the documentation, but maybe it's not so clear that that is the same as

a = 1
b = 2
c = 3
mySpecificFn = @(x)myGeneralFn(x,a,b,c)

function y = myGeneralFn(x,a,b,c)
y = a*x.^2 + b*x + c;
end

[Javier Mateo]

Excellent explanation. Thank you!!

Answer 2

[Bruno Luong]

% Assuming operation,mode are defined
% operation = ...
% mode = ...
configureCallback(s,"terminator",@(s,t) readSerialData(s, t, operation, mode));

[Javier Mateo]

Thank you!!