IWMSContext.GetContextType (C#)

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IWMSContext.GetContextType (C#)

The GetContextType method retrieves the type of context.

Syntax

Parameters

pType

Reference to a WMS_CONTEXT_TYPE enumeration value specifying the type of context. This must be one of the following values.

Value	Description
WMS_UNKNOWN_CONTEXT_TYPE	The type of the context is unknown.
WMS_SERVER_CONTEXT_TYPE	The context contains information about the server.
WMS_USER_CONTEXT_TYPE	The context contains information about the client.
WMS_PRESENTATION_CONTEXT_TYPE	The context contains information about the content being streamed to clients.
WMS_CONTENT_DESCRIPTION_CONTEXT_TYPE	The context contains descriptive information about the content.
WMS_COMMAND_REQUEST_CONTEXT_TYPE	The context contains information about client requests.
WMS_COMMAND_RESPONSE_CONTEXT_TYPE	The context contains information about server responses to client requests.
WMS_TRANSPORT_SPEC_CONTEXT_TYPE	The context contains information about the transport used to deliver the stream, either UDP, TCP, or multicast.
WMS_PACKETIZER_CONTEXT_TYPE	The context contains information about data packets.
WMS_CACHE_CONTENT_INFORMATION_CONTEXT_TYPE	The context contains information about a cache.
WMS_ARCHIVE_CONTEXT_TYPE	The context contains information about an archive.

Return Values

This method does not return a value.

If this method fails, it throws an exception.

Number	Description
0x80004003	pType is null.

Example Code

Guid ContextGuid = typeof(IWMSContext).GUID;
IWMSContext         Context;
IntPtr              pUnknown;
WMS_CONTEXT_TYPE    ContextType;

try
{          
    m_ClassFactory.AllocIWMSContext(ref ContextGuid,
                                   WMS_CONTEXT_TYPE.WMS_USER_CONTEXT_TYPE,
                                   pUserContext, out pUnknown);
    Context = (IWMSContext)Marshal.GetTypedObjectForIUnknown(pUnknown,
                                                     typeof(IWMSContext));
            
    Context.SetStringValue(WMSDefines.WMS_CONTENT_DESCRIPTION_TITLE,
                           WMSDefines.WMS_CONTENT_DESCRIPTION_TITLE_ID,
                           "My Title", 0);
    Context.SetLongValue(WMSDefines.WMS_CONTENT_DESCRIPTION_NO_SKIP,
                         WMSDefines.WMS_CONTENT_DESCRIPTION_NO_SKIP_ID,
                         1, 0);

    Context.GetContextType(out ContextType);
}
catch( Exception e )
{
    // TODO: Handle exceptions.
}

Requirements

Reference: Add a reference to Microsoft.WindowsMediaServices.

Namespace: Microsoft.WindowsMediaServices.Interop.

Assembly: Microsoft.WindowsMediaServices.dll.

Library: WMSServerTypeLib.dll.

Platform: Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; Windows Server 2008.

See Also

• IWMSContext Object (C#)

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