C# Signature:

[DllImport("netapi32.dll", SetLastError=true)]
static extern uint NetShareCheck(
    [MarshalAs(UnmanagedType.LPWStr)] string servername,
    [MarshalAs(UnmanagedType.LPWStr)] string device,
    out SHARE_TYPE type
    );

VB Signature:

Declare Function NetShareCheck Lib "netapi32.dll" (TODO) As TODO

C# User-Defined Types:

        private enum NetError : uint
        {
            NERR_Success = 0,
            ERROR_NOT_ENOUGH_MEMORY = 8,
            NERR_DeviceNotShared = 2311,
        }

        private enum SHARE_TYPE : uint
        {
            STYPE_DISKTREE = 0,
            STYPE_PRINTQ = 1,
            STYPE_DEVICE = 2,
            STYPE_IPC = 3,
            STYPE_TEMPORARY = 0x40000000,
            STYPE_SPECIAL = 0x80000000,
        }

VB User-Defined Types:

TODO

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

None.

Tips & Tricks:

Parameters

• servername: String that specifies the DNS or NetBIOS name of the remote server on which the function is to execute. If this parameter is NULL, the local computer is used.

• device: String that specifies the name of the device to check for shared access. Drive letter must be upper case.

• type: Specify the type of the shared device. This parameter is set only if the function returns successfully.

C# Sample Code:

    String server = "myServer"; // could be empty for local computer
    String localPath = @"C:\shared folder";
    SHARE_TYPE shareType;

    Boolean exists;

    NetError result = (NetError)NetShareCheck(server, localPath, out shareType);

    switch (result)
    {
        case NetError.NERR_Success: exists = true;
        break;
        case NetError.ERROR_NOT_ENOUGH_MEMORY: throw new OutOfMemoryException();

        case NetError.DeviceNotShared: exists = false;
        break;
    }

VB Sample Code:

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