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The GetAttribute method retrieves the value of a packet attribute that is defined by WMS_PACKET_ATTRIBUTES.
IWMSPacket.GetAttribute( dwValueName As UInt32,
ByRef pdwValue As UInt32
)
Arguments
Member of the WMS_PACKET_ATTRIBUTES enumeration type. This must be one of the following values. |
Value |
Description |
|---|---|
WMS_PACKET_DURATION |
Retrieves the duration of the packet. |
WMS_PACKET_ERASURES_DETECTED |
Retrieves a value indicating whether the packet was dropped. |
WMS_PACKET_FLAGS |
Retrieves any flags associated with the packet defined by WMS_PACKET_LIST_ATTRIBUTES. |
WMS_PACKET_LENGTH |
Retrieves the length of the packet. |
WMS_PACKET_NET_SEQUENCE_NUMBER |
Retrieves the number of the packet in the sequence. |
WMS_PACKET_NUM_BUFFERS |
Retrieves the count of buffers in the packet. |
WMS_PACKET_NUM_NACKS |
Retrieves the number of times the packet has been resent. |
WMS_PACKET_PACKET_NUM |
Retrieves the number of the packet. |
WMS_PACKET_PACKETIZED_HDRLEN |
Retrieves the header length of the packet. |
WMS_PACKET_PRESENT_TIME |
Retrieves the low-order DWORD presentation time of the packet. |
WMS_PACKET_PRESENT_TIME_HI |
Retrieves the high-order DWORD presentation time of the packet. |
WMS_PACKET_RECV_TIME |
Retrieves the receive time of the packet. |
WMS_PACKET_SEND_TIME |
Retrieves the low-order DWORD send time of the packet. |
WMS_PACKET_SEND_TIME_ADJUSTMENT |
Retrieves the send-time adjustment of the packet. |
WMS_PACKET_SEND_TIME_HI |
Retrieves the high-order DWORD send time of the packet. |
WMS_PACKET_STREAM_NUM |
Retrieves the stream number associated with this packet. |
Reference to a UInt32 containing the value retrieved. |
Return Value
This method does not return a value.
If this method fails, it throws an exception.
Number |
Description |
|---|---|
0x80070057 |
pdwValue is null or dwValueName is not a valid index location. |
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.