Setting Desktop, either to .T. or .F., works perfectly.

As the Desktop property is readonly, I cannot change its value inside the form's code. So I created a variable (bDeskTop) to set this property in the definition of the form, but whatever is the value of bDeskTop (.T. or .F.) it only works in the first invocation on the form. The next time it simply ignores the value.

There is a way to workaround this situation?

 bDeskTop = .F.

 oMyForm  = CreateObj ("frmMyForm") && The form will be created inside _Screen.
 oMyForm.Show ()

 Clear Events

 bDeskTop = .T.

 oMyForm  = CreateObj ("frmMyForm")  && It doesn't change, the form is created inside _Screen again.
 oMyForm.Show ()

 Clear Events

 Define Class frmMyForm as Form
         . . . 
        Desktop = bDeskTop
         . . . 
 EndDefine