>>>>============= VB Coding =========
>>>>
>>>>Private Declare Function SendMessage Lib "User32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
>>>>
>>>>Const WM_NCLBUTTONDOWN = &HA1
>>>>Const HTCAPTION = 2
>>>>
>>>>lngReturnValue = SendMessage(Form1.hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0&)
>>>>
>>>>============= VFP Coding(?) =========
>>>>Please help me!
>
>Coding provided by Erik Moore;
>#DEFINE WM_CLOSE 0x10
>DECLARE INTEGER FindWindow IN Win32API STRING, STRING
>hWnd = FindWindow(0,"MSDN Library - January 2000")
>=SendMessage(hWnd, WM_NCLBUTTONDOWN, 12, 0)
>
>------------------------------------------------------------
>
>But, I don't know how can I define this code;
>
>VB : Const WM_NCLBUTTONDOWN = &HA1
>VFP : #DEFINE WM_NCLBUTTONDOWN ???????

---

I think that &H stands for hex code.
Then A1 should be 17 decimal

You could also check winuser.h or windows.h
According to the help it should be defined there.