IDvbLogicalChannelDescriptor interface (dvbsiparser.h)
[The feature associated with this page, Microsoft TV Technologies, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]
Note��This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later.
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The IDvbLogicalChannelDescriptor interface enables the client to get a logical channel descriptor from a DVB stream. The logical channel descriptor may be present in the network information table (NIT).
Inheritance
The IDvbLogicalChannelDescriptor interface inherits from the IUnknown interface. IDvbLogicalChannelDescriptor also has these types of members:
Methods
The IDvbLogicalChannelDescriptor interface has these methods.
| IDvbLogicalChannelDescriptor::GetCountOfRecords Note��This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later.�. |
| IDvbLogicalChannelDescriptor::GetLength Note��This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later.�. |
| IDvbLogicalChannelDescriptor::GetRecordLogicalChannelNumber Note��This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later.�. |
| IDvbLogicalChannelDescriptor::GetRecordServiceId Note��This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later. �. |
| IDvbLogicalChannelDescriptor::GetTag Note��This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later. �. |
Remarks
To obtain a pointer to this interface, do the following:
- Call IDvbSiParser::GetNIT to get the IDVB_NIT interface.
- Call IDVB_NIT::GetRecordDescriptorByTag and pass in the logical channel descriptor tag (0x83). If the descriptor is present, the method returns an IGenericDescriptor pointer.
- Query the returned IGenericDescriptor pointer for the IDvbLogicalChannelDescriptor interface.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | dvbsiparser.h |