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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(
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
BITMAPINFO, ICM_COMPRESS_QUERY
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