which argtypes for NetShareAdd

Question

The win32 function NetShareDel takes three arguments, LPCWSTR LPCWSTR and DWORD.

So I use the following list for argtypes:

import ctypes as C

C.windll.Netapi32.NetShareDel.argtypes = [LPCWSTR, LPCWSTR, c_int]
C.windll.Netapi32.NetShareDel.restype = c_int
    
C.windll.Netapi32.NetShareDel(server, shareName, 0)

That works fine, but I can't figure out what to use for NetShareAdd, especialle the byte array for NET_SHARE_INFO struct and the last byref(c_int) argument.

Here's the code:

def Share(server, shareName, dir):    
    info = SHARE_INFO_2()

    STYPE_DISKTREE = 0

    info.shi2_netname = shareName
    info.shi2_path = dir
    info.shi2_type = STYPE_DISKTREE
    info.shi2_remark = "Shared: " + time.strftime("%Y%m%d-%H:%M")
    info.shi2_max_uses = -1
    info.shi2_passwd = ""
    info.shi2_current_uses = 0
    info.shi2_permissions = 0xFFFFFFFF
    
    i = c_int()

    bytearray = buffer(info)[:]
    
    windll.Netapi32.NetShareAdd.argtypes = [LPCWSTR, c_int, ????, ????]

    windll.Netapi32.NetShareAdd(server, 2, bytearray, C.byref(i))

What would be the correct argtypes list for NetShareAdd?

NET_API_STATUS NetShareAdd( _In_ LPWSTR servername, _In_ DWORD level, _In_ LPBYTE buf, _Out_ LPDWORD parm_err ); — denfromufa, Jun 30 '16 at 12:13
https://msdn.microsoft.com/en-us/library/windows/desktop/bb525384(v=vs.85).aspx — denfromufa, Jun 30 '16 at 12:13
I know the signature, but what to use for the third parameter. bytearray = buffer(info)[:] is the python code but how to pass that with what argtypes? — Serve Laurijssen, Jun 30 '16 at 12:18

score 1 · Accepted Answer · answered Jul 01 '16 at 08:51

Got it working finally

First the line

bytearray = buffer(info)[:]

was changed into byte pointer type

byteptr = C.POINTER(C.wintypes.BYTE)(info)

and then the argtypes and call will become POINTER(BYTE) too of course:

C.windll.Netapi32.NetShareAdd.argtypes = [LPCWSTR, c_int, C.POINTER(C.wintypes.BYTE), C.POINTER(c_int)]
C.windll.Netapi32.NetShareAdd.restype = c_int

windll.Netapi32.NetShareAdd(server, 2, byteptr, C.byref(i))

which argtypes for NetShareAdd

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