IBitstreamProcessor::GetDMAChannel
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8/28/2008
This method retrieves the DMA channel by index.
Syntax
HRESULT GetDMAChannel(
DWORD dwIndex,
IDMAChannel** ppChannel
);
Parameters
- dwIndex
[in] Index of the channel to be retrieved. This must be between 0 and the total number of channels retrieved by IBitstreamProcessor::GetDMAChannelCount.
- ppChannel
[out] Returns the IDMAChannel interface pointer.
Return Value
The following table shows a list of possible return values.
| Return value | Description |
|---|---|
S_OK |
The request completed successfully. |
E_INVALIDARG |
A range check failed for the index. |
E_UNEXPECTED |
IBitstreamProcessor::SetBitstreamType did not succeed yet. |
E_POINTER |
An invalid argument pointer has been encountered. |
E_FAIL |
A generic failure to get IDMAChannel occurred. |
Remarks
IBitstreamProcessor::SetBitstreamType should succeed before calling this method.
The current version of DVD navigator requires DMA channel 0 to accept a full DVD stream.
Requirements
| Header | dvddrvr.idl |
| Windows Embedded CE | Windows CE .NET 4.0 and later |
See Also
Reference
IDMAChannel
IBitstreamProcessor::SetBitstreamType
IBitstreamProcessor::GetDMAChannelCount
IBitstreamProcessor