B4J Question B4X - Width of a form

[Sabotto]

I don't understand this thing
If I drag a form with the mouse, every time I click on the Button I read the right width. If, however, in Create, I set it myself, (for example at 1200) the Log always returns 1200, whatever the width I set by dragging with the mouse
Why?

Private Sub B4XPage_Created (Root1 As B4XView)
  
    Root = Root1
    Root.LoadLayout("MainPage")
    Root.Width=1200 '  If I comment this statement, the Log returns me the right Width value.
  
End Sub

Sub Button1_Click
    Log(Root.Width)
End Sub

I am in B4J

 

[Erel]

You need to change the form dimension. Get the form with B4XPages.GetNativeParent(Me).