Class Update Form Control... Is it possible?

[Roger]

I have some code that spawns off a thread which is a function inside another
class.

I want the function to update a control on the form, but can't seem to
figure out how to get to the forms control.

Any suggestions....

dim node as TreeNode
node = TreeView1.Nodes.Add(sFolder)

This will not work. Form name is Form1.

Thanks,

Rog