GUI app and winAPI calls

[aurel]

Usual VB method is :
Declare Function CreateWindowEx Lib "user32.dll" Alias "CreateWindowExA"(ByVal dwExStyle As Long, ByVal lpClassName As String, ByVal lpWindowName As String, ByVal dwStyle As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hWndParent As Long, ByVal hMenu As Long, ByVal hInstance As Long, ByRef lpParam As Long) As Long

but what i found is awkward way with :
FUNCTION CreateWindowExA%& (BYVAL dwExStyle~&, BYVAL lpClassName%&, BYVAL lpWindowName%&, BYVAL dwStyle~&, BYVAL x&, BYVAL y&, BYVAL nWidth&, BYVAL nHeight&, BYVAL hWndParent%&, BYVAL hMenu%&, BYVAL hInstance%&, BYVAL lpParam%&)

I will try reconstruct this ...