'ButtonDownFcn' - Passed parameters need to be updated

Hi,

let's say I've got something like this:

pX = 10;
pY = 15;
pHandle = plot(pX, pY, 'bx','ButtonDownFcn', {@startProcess, pX, pY});

In startProcess the data pX and pY gets altered by user interaction and I make the command :

pX = newXValues;
pY = newYValues;
set(pHandle, 'XData', newXValues, 'YData', newYValues);

to save and update the new values.

The next time a call is made to @startProcess I would assume that it now uses the altered values, but instead pX and pY remain the original values being 10 and 15.

How can I force the @startProcess function to use the updated values for pX and pY?

Thank you!

Answer 1

[Friedrich]

Hi,

once this function handle is created the passed values are fix. You have to renew the function handle with the updated values. So do a

set(pHandle,'ButtonDownFcn', {@startProcess, new_pX, new_pY})

[BF83]

That was fast!

Great it's working. It's all about handling the handles. ;)

Thank you!