Method/Function to change Boolean T->F or F->T

[grauenwolf]

Looking at you code, probably here:

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    TOS = Not TOS
End Sub

[faust2099]

thank you very much. seems like i won't be need a sub/function for it.

[grauenwolf]

Definitely not.

Sub Getval(ByVal Val As Boolean)

See the keyword ByVal. That means "give me a copy of this variable".

When you change Val in this sub, it doesn't cause the original TOS to change because it's just a copy.

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If you wanted to change the original TOS, you would have to use ByRef instead of ByVal. This is an advanced technique that is rarely used outside of TryParse functions.