WM_MDICREATE with MDICREATESTRUCT

i am subclassing a window for the WM_MDICREATE api message. when i get the message the lParam holds a pointer to a MDICREATESTRUCT structure which has the information on the window being created.
how do i get this information? i'm guessing if i create my own MDICREATESTRUCT and somehow set it equal to the one behind the pointer i could just read the info.
but how do i do this?
thank you
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Declare this

Code:

---

Type MDICREATESTRUCT
        szClass As String
        szTitle As String
        hOwner As Long
        x As Long
        y As Long
        cx As Long
        cy As Long
        style As Long
        lParam As Long
End Type

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