AVIStreamReadData
The AVIStreamReadData
function reads optional header data from a stream.
STDAPI AVIStreamReadData(
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PAVISTREAM
pavi, |
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|
DWORD ckid, |
|
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LPVOID lpData, |
|
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LONG * lpcbData |
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); |
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Parameters
pavi
Handle of an
open stream.
ckid
Four-character
code identifying the data.
lpData
Address of
the buffer to contain the optional header data.
lpcbData
Address of
the location that specifies the buffer size used for lpData. If the read
is successful, AVIFile changes this value to indicate the amount of data
written into the buffer for lpData.
Return Values
Returns zero
if successful or an error otherwise. The return value AVIERR_NODATA indicates
the system could not find any data with the specified chunk identifier.
Remarks
This function
retrieves only optional header information from the stream. This information is
custom and does not have a set format.