Need help with DllCall using user32.dll

[PartyPooper]

I'm trying to learn more about DllCall and thought I'd start with something simple like getting the current cursor position (in screen coordinates) but since I know nothing of user32.dll (only what I've seen others do with it), I'm shooting in the dark. For now, I'll keep it simple and just work with user32.dll until I know more about functions and structures of DLL's. Can someone tell me how where I can find out about the functions of user32.dll and how I determine what to put on the DllCall line (it's structure I guess)?

This is what I have so far (it's only a guess at how the function may look like). I was hoping it would tell me the current X & Y of the cursor but as I don't know the structure of user32.dll, I can't go any further.

Func _CursorPos()
    Local $POINT = DllStructCreate("long;long")
    Local $X, $Y
    DllStructSetData($POINT, 1, $X)
    DllStructSetData($POINT, 1, $Y)
    Local $ret = DllCall("user32.dll", "int", "GetCursorPos", "ptr", DllStructGetPtr($POINT))
    MsgBox(0,'',($ret[0]/65535), ($ret[1]/65535))
EndFunc

[PartyPooper]

Thanks for correcting the function Larry (I was close - a good guess), however, I'm still no wiser as to the functions and structures of user32.dll (or any other dll for that matter) which is really what I would like to learn. So can anyone point me in the direction of said info.

Thanks

[greenmachine]

msdn.microsoft.com

Search under the name of the function you want to call.

To get a list of functions, I use DllExp (not sure where I got it though).

[PartyPooper]

Thanks greenmachine. I Googled DllExp and got a copy so hopefully this will shed some light on the matter.