ICLocate
The ICLocate
function finds a compressor or decompressor that can handle images with the
specified formats, or finds a driver that can decompress an image with a
specified format directly to hardware.
HIC ICLocate(
DWORD fccType, |
|
DWORD fccHandler, |
|
LPBITMAPINFOHEADER lpbiIn, |
|
LPBITMAPINFOHEADER lpbiOut, |
|
WORD wFlags |
|
); |
|
Parameters
fccType
Four-character
code indicating the type of compressor or decompressor to open. For video
streams, the value of this parameter is VIDC .
fccHandler
Preferred
handler of the specified type. Typically, the handler type is stored in the
stream header in an AVI file. Specify NULL if your application can use any
handler type or it does not know the handler type to use.
lpbiIn
Address of a BITMAPINFOHEADER
lpbiOut
Address of a BITMAPINFOHEADER
structure defining an optional decompressed format. You can also specify zero
to use the default output format associated with the input format.
If this
parameter is nonzero, a compressor handle is not returned unless it can create
this output format.
wFlags
Flags that
describe the search criteria for a compressor or decompressor. The following
values are defined:
ICMODE_COMPRESS
Finds a
compressor that can compress an image with a format defined by lpbiIn to
the format defined by lpbiOut.
ICMODE_DECOMPRESS
Finds a
decompressor that can decompress an image with a format defined by lpbiIn
to the format defined by lpbiOut.
ICMODE_DRAW
Finds a
decompressor that can decompress an image with a format defined by lpbiIn
and draw it directly to hardware.
ICMODE_FASTCOMPRESS
Has the same
meaning as ICMODE_COMPRESS except the compressor is used for a real-time
operation and emphasizes speed over quality.
ICMODE_FASTDECOMPRESS
Has the same
meaning as ICMODE_DECOMPRESS except the decompressor is used for a real-time
operation and emphasizes speed over quality.
Return Values
Returns a
handle to a compressor or decompressor if successful or zero otherwise.
See Also