Disable MDI parent form button from MDI child form

[manutd4life]

Ok i have a button on MDI parent form and i need to disable it when closing a child form. When writing the button name (cmdmenu) in the child form, it says that the cmdmenu is not declared please help

[Pgmer]

That button should be publicaly decalred.
if it is publically availabele then
in child form closing event

Mdiform.cmdmenu.disabled=true

[manutd4life]

how to declare a button in module

[manutd4life]

Got it i solved it
Here's the code

Dim par As frmMainmenu = Me.MdiParent
        par.cmdmenu.Enabled = False

no need to declare it in module, it works great