ICCompressQuery
The ICCompressQuery
macro queries a video compression driver to determine if it supports a specific
input format or if it can compress a specific input format to a specific output
format. You can use this macro or explicitly call the ICM_COMPRESS_QUERY message.
DWORD ICCompressQuery(
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hic, |
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lpbiInput, |
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lpbiOutput |
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); |
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Parameters
hic
Handle of a
compressor.
lpbiInput
Address of a BITMAPINFO structure containing the
input format.
lpbiOutput
Address of a BITMAPINFO
structure containing the output format. You can specify zero for this parameter
to indicate any output format is acceptable.
Return Values
Returns
ICERR_OK if the specified compression is supported or ICERR_BADFORMAT
otherwise.
Remarks
When a driver
receives this message, it should examine the BITMAPINFO structure
associated with lpbiInput to determine if it can compress the input
format.
See Also