getTouch(&x, &y) value of &x and &y

[jnivard]

It seems that in case the function is false the value of &x and &y are undefined? If the value is thrue x an y contains the coordinates. For how long will it hold the correct value?

I came on this problem by scanning the location of the touch in a loop!

Kind regards

[Bodmer]

The sketch decides the variable scope and initial value. See example provided.