CompressPenData
2.0
Compresses or
decompresses the data in an HPENDATA object.
int CompressPenData( HPENDATA hpndt,
UINT fuFlags, DWORD dwReserved )
Parameters
hpndt
Handle to the
HPENDATA object.
fuFlags
Specifies
whether to compress or decompress the data, as follows:
|
Constant |
Description |
|
CMPD_COMPRESS |
Compress
the pen data. |
|
CMPD_DECOMPRESS |
Decompress
the pen data. |
dwReserved
Must be 0.
Return Value
This function
returns one of the following:
|
Constant |
Description |
|
PDR_OK |
Successful
completion. Redundant operations, such as compressing an HPENDATA
object that has already been compressed, are not errors. |
|
PDR_ERROR |
Illegal
parameter or other error. |
|
PDR_MEMERR |
Memory
error. |
|
PDR_PNDTERR |
Invalid pen
data. |
|
PDR_VERSIONERR |
Could not
convert old pen data. |
Comments
This function
replaces the the version 1.0 Pen API function CompactPenData, which is supported for
compatibility only.
For a
discussion of data compression, see Compressing Pen Data in Chapter 4, The
Inking Process.
See Also