>i mean sub form is another form
>when click button in form "A"
>do form "B"
>in form "B" still can gets all the valiables
>after form "B" close
>form "A" gets all the valiables value changed during in form "B"

in form A button

local loParameter
loParameter=createobject("custom")
loParameter.AddProperty("parameter")

do form B with loParameter

You can add thousands of propertyies to loParameter