/usr/include/stroke.h is in libstroke0-dev 0.5.1-6.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | /*
libstroke - an X11 stroke interface library
Copyright (c) 1996,1997,1998,1999 Mark F. Willey, ETLA Technical
See the files COPYRIGHT and LICENSE for distribution information.
*/
/* largest number of points allowed to be sampled */
#define STROKE_MAX_POINTS 10000
/* number of sample points required to have a valid stroke */
#define STROKE_MIN_POINTS 50
/* maximum number of numbers in stroke */
#define STROKE_MAX_SEQUENCE 20
/* threshold of size of smaller axis needed for it to define its own
bin size */
#define STROKE_SCALE_RATIO 4
/* minimum percentage of points in bin needed to add to sequence */
#define STROKE_BIN_COUNT_PERCENT 0.07
/* translate stroke to sequence */
int stroke_trans (char *sequence);
/* record point in stroke */
void stroke_record (int x, int y);
/* initialize stroke functions
There are 2 ways to initialize the stroke library:
stroke_init_with_mouse_footprints will draw mouse footprints
Use stroke_init if that is not desired, or if you have your own
implementation of footprints. */
#ifdef STROKE_MOUSE_FOOTPRINTS
#include <X11/Xlib.h>
void stroke_init_with_mouse_footprints (Display *disp, Window wind);
#else
void stroke_init (void);
#endif
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