PDTS_ Pen Data Scaling
The PDTS_
data scaling units are used in the uScale and wPndtNew arguments
of the CreatePenData
and MetricScalePenData
functions, respectively. These units are used for the wPndts member of
the PENDATAHEADER
structure. Positive x-coordinate is to the right; positive y-coordinate is
down.
The following
table lists the PDTS_ values. These values cannot be combined with the
bitwise-OR operator.
|
Constant |
Description |
|
PDTS_ARBITRARY |
The
application has done its own scaling of the data point. |
|
PDTS_COMPRESS2NDDERIV |
The second
derivative between points is stored. |
|
PDTS_DISPLAY |
Each
logical unit is equivalent to a display pixel. Positive x is to the right;
positive y is down. |
|
PDTS_HIENGLISH |
Each
logical unit is mapped to 0.001 inch. Positive x is to the right; positive y
is down. |
|
PDTS_HIMETRIC |
Each
logical unit is mapped to 0.001 millimeter. Positive x is to the right;
positive y is down. |
|
PDTS_LOMETRIC |
Each
logical unit is mapped to 0.01 millimeter. Positive x is to the right;
positive y is down. |
|
PDTS_STANDARDSCALE |
The
standard scaling metric, equivalent to PDTS_HIENGLISH. Standard recognizers
scale to this value. |
The following
table lists the PDTS_ bit settings. These bit settings can be combined using
the bitwise-OR operator.
|
Constant |
Description |
|
PDTS_COMPRESSED |
The data is
compressed. |
|
PDTS_NOCOLLINEAR |
All
redundant points removed. |
|
PDTS_NOEMPTYSTROKES |
All empty
strokes removed. |
|
PDTS_NOOEMDATA |
OEM data
removed. |
|
PDTS_NOPENINFO |
The PENINFO structure has been
trimmed from the header. |
|
PDTS_NOTICK |
Timing
information removed. |
|
PDTS_NOUPPOINTS |
All pen-up
strokes removed. |
|
PDTS_NOUSER |
User
information removed. |
The following
table lists the PDTS_ mask values:
|
Constant |
Description |
|
PDTS_COMPRESSMETHOD |
Bits encode
the compression scheme that is used. |
|
PDTS_SCALEMASK |
Mask
scaling bits for hardware information. |
For additional
information, see the entries for the CompactPenData and MetricScalePenData functions in Chapter 10,
Pen Application Programming Interface Functions.