Hello guys,
Here I am again in need of some help.
My last routine obligated me to start learning some DCL and I a problem has just turned out to me.
I have a couple of EditBoxes and I want to avoid the user to insert letters in it.
It seems to be kind of easy, but after a hundred of attempts nothing was achieved and I am here looking for some help.
How can I "lock" a EditBox to receive only numerical input?