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ICM_COMPRESS_GET_FORMAT
The ICM_COMPRESS_GET_FORMAT message requests the output format of the
compressed data from a video compression driver. You can send this message explicitly
or by using the ICCompressGetFormat macro.
ICM_COMPRESS_GET_FORMAT
wParam = (DWORD) (LPVOID) lpbiInput;
lParam = (DWORD) (LPVOID) lpbiOutput;
Parameters
lpbiInput
Address of a BITMAPINFO structure containing the input format.
lpbiOutput
Address of a BITMAPINFO structure to contain the output format. You can specify zero for this
parameter to request only the size of the output format, as in the ICCompressGetFormatSize macro.
Return Values
If lpbiOutput is zero, returns the size of the structure.
If lpbiOutput is nonzero, returns ICERR_OK if successful or an error otherwise.
Remarks
If lpbiOutput is nonzero, the driver should fill the BITMAPINFO structure with the default output format corresponding to the input format
specified for lpbiInput. If the compressor can produce several formats, the default format should be
the one that preserves the greatest amount of information.
See Also
BITMAPINFO, ICCompressGetFormat, ICCompressGetFormatSize
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