How to write an "Undo" program in VB6

[monkey3333sg]

I would like to add an "undo" button in my programme

[Assyst]

I would like to add an "undo" button in my programme

Tell the exact scenario , So that can be able to dicuss abt that ?

[monkey3333sg]

Tell the exact scenario , So that can be able to dicuss abt that ?

I am using VB 6 program draw some lines and blocks. I would like to undo every single step.

I was thinking save every step into a form, so can close it and open the previous one.