/// <summary>
/// Creates an instance of a COM server.
/// </summary>
public static object CreateServer(Guid clsid)
{
COSERVERINFO coserverInfo = new COSERVERINFO();
coserverInfo.pwszName = null;
coserverInfo.pAuthInfo = IntPtr.Zero;
coserverInfo.dwReserved1 = 0;
coserverInfo.dwReserved2 = 0;
GCHandle hIID = GCHandle.Alloc(IID_IUnknown, GCHandleType.Pinned);
MULTI_QI[] results = new MULTI_QI[1];
results[0].iid = hIID.AddrOfPinnedObject();
results[0].pItf = null;
results[0].hr = 0;
try
{
// create an instance.
CoCreateInstanceEx(
ref clsid,
null,
CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER,
ref coserverInfo,
1,
results);
}
finally
{
hIID.Free();
}
if (results[0].hr != 0)
{
throw new ExternalException("CoCreateInstanceEx: 0x{0:X8}" + results[0].hr);
}
return results[0].pItf;
}
/// <summary>
/// Allocates a COSERVERINFO structure.
/// </summary>
public COSERVERINFO Allocate(string hostName, UserIdentity identity)
{
// initialize server info structure.
COSERVERINFO serverInfo = new COSERVERINFO();
serverInfo.pwszName = hostName;
serverInfo.pAuthInfo = IntPtr.Zero;
serverInfo.dwReserved1 = 0;
serverInfo.dwReserved2 = 0;
// no authentication for default identity
if (UserIdentity.IsDefault(identity))
{
return serverInfo;
}
m_hUserName = GCHandle.Alloc(identity.Username, GCHandleType.Pinned);
m_hPassword = GCHandle.Alloc(identity.Password, GCHandleType.Pinned);
m_hDomain = GCHandle.Alloc(identity.Domain, GCHandleType.Pinned);
m_hIdentity = new GCHandle();
// create identity structure.
COAUTHIDENTITY authIdentity = new COAUTHIDENTITY();
authIdentity.User = m_hUserName.AddrOfPinnedObject();
authIdentity.UserLength = (uint)((identity.Username != null)?identity.Username.Length:0);
authIdentity.Password = m_hPassword.AddrOfPinnedObject();
authIdentity.PasswordLength = (uint)((identity.Password != null)?identity.Password.Length:0);
authIdentity.Domain = m_hDomain.AddrOfPinnedObject();
authIdentity.DomainLength = (uint)((identity.Domain != null)?identity.Domain.Length:0);
authIdentity.Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
m_hIdentity = GCHandle.Alloc(authIdentity, GCHandleType.Pinned);
// create authorization info structure.
COAUTHINFO authInfo = new COAUTHINFO();
authInfo.dwAuthnSvc = RPC_C_AUTHN_WINNT;
authInfo.dwAuthzSvc = RPC_C_AUTHZ_NONE;
authInfo.pwszServerPrincName = IntPtr.Zero;
authInfo.dwAuthnLevel = RPC_C_AUTHN_LEVEL_CONNECT;
authInfo.dwImpersonationLevel = RPC_C_IMP_LEVEL_IMPERSONATE;
authInfo.pAuthIdentityData = m_hIdentity.AddrOfPinnedObject();
authInfo.dwCapabilities = EOAC_NONE; // EOAC_DYNAMIC_CLOAKING;
m_hAuthInfo = GCHandle.Alloc(authInfo, GCHandleType.Pinned);
// update server info structure.
serverInfo.pAuthInfo = m_hAuthInfo.AddrOfPinnedObject();
return serverInfo;
}
public IntPtr CreateInstance(CLSCTX dwContext, string server)
{
IntPtr pInterface = IntPtr.Zero;
if (dwContext == CLSCTX.ALL)
{
if (DefaultServerType == COMServerType.InProcServer32)
{
dwContext = CLSCTX.INPROC_SERVER;
}
else if (DefaultServerType == COMServerType.LocalServer32)
{
dwContext = CLSCTX.LOCAL_SERVER;
}
else if (DefaultServerType == COMServerType.InProcHandler32)
{
dwContext = CLSCTX.INPROC_HANDLER;
}
else
{
dwContext = CLSCTX.SERVER;
}
}
Guid iid = COMInterfaceEntry.CreateKnownInterface(COMInterfaceEntry.KnownInterfaces.IUnknown).Iid;
Guid clsid = Clsid;
int hr = 0;
if (server != null)
{
MULTI_QI[] qis = new MULTI_QI[1];
qis[0] = new MULTI_QI(iid);
COSERVERINFO server_info = new COSERVERINFO(server);
try
{
hr = COMUtilities.CoCreateInstanceEx(ref clsid, IntPtr.Zero, dwContext, server_info, 1, qis);
if (hr == 0)
{
hr = qis[0].HResult();
if (hr == 0)
{
pInterface = qis[0].GetObjectPointer();
}
}
}
finally
{
((IDisposable)qis[0]).Dispose();
}
}
else
{
hr = COMUtilities.CoCreateInstance(ref clsid, IntPtr.Zero, dwContext, ref iid, out pInterface);
}
if (hr != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
return(pInterface);
}
static extern void CoGetInstanceFromIStorage(COSERVERINFO pServerInfo, ref Guid pclsid,
[MarshalAs(UnmanagedType.IUnknown)] object pUnkOuter, CLSCTX dwClsCtx,
IStorage pstg, uint cmq, [In, Out] MULTI_QI[] rgmqResults);
static extern void CoGetInstanceFromFile(
COSERVERINFO pServerInfo,
ref Guid pClsid,
[MarshalAs(UnmanagedType.IUnknown)] object pUnkOuter,
CLSCTX dwClsCtx,
STGM grfMode,
string pwszName,
uint cmq,
[In, Out] MULTI_QI[] rgmqResults);
static extern void CoCreateInstanceEx(
[In, MarshalAs(UnmanagedType.LPStruct)] Guid rclsid,
[MarshalAs(UnmanagedType.IUnknown)] object pUnkOuter,
CLSCTX dwClsCtx,
COSERVERINFO pServerInfo,
uint cmq,
[In, Out] MULTI_QI[] pResults);
internal static extern int CoCreateInstanceEx(ref Guid clsid, IntPtr pUnkOuter, int dwClsContext, [In, Out] COSERVERINFO srv, int num, [In, Out] MULTI_QI[] amqi);
