B4R Question How to.Scrollingtext programming forB4R.like belows?

[Theera]

I have.been trying b4R.program instead ofC programming. (StringinB4R.isn't like.string inb4a)

 

[Erel]

Example: https://www.b4x.com/android/forum/threads/rmax7219ledmatrix.69861/#content