|
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."
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