XkbAddGeomOutline(3) - Man pages

XkbAddGeomOutline(3) XKB FUNCTIONS XkbAddGeomOutline(3)

NAME
XkbAddGeomOutline - Add one outline to an existing shape

SYNOPSIS
XkbOutlinePtr XkbAddGeomOutline (XkbShapePtr shape, int sz_points);

ARGUMENTS
shape shape to be updated

sz_points
number of points to be reserved

DESCRIPTION
Xkb provides functions to add a single new element to the top-level
keyboard geometry. In each case the num_ * fields of the corresponding
structure is incremented by 1. These functions do not change sz_* un-
less there is no more room in the array. Some of these functions fill
in the values of the element's structure from the arguments. For other
functions, you must explicitly write code to fill the structure's ele-
ments.

The top-level geometry description includes a list of geometry proper-
ties. A geometry property associates an arbitrary string with an
equally arbitrary name. Programs that display images of keyboards can
use geometry properties as hints, but they are not interpreted by Xkb.
No other geometry structures refer to geometry properties.

An outline consists of an arbitrary number of points. XkbAddGeomOut-
line adds an outline to the specified shape by reserving sz_points
points for it. The new outline is allocated and zeroed. XkbAddGeomOut-
line returns NULL if any of the parameters is empty or if it was not
able to allocate space. To allocate space for an arbitrary number of
outlines to a shape, use XkbAllocGeomOutlines.

STRUCTURES
typedef struct _XkbOutline {
unsigned short num_points; /* number of points in the outline */
unsigned short sz_points; /* size of the points array */
unsigned short corner_radius; /* draw corners as circles with this radius */
XkbPointPtr points; /* array of points defining the outline */
} XkbOutlineRec, *XkbOutlinePtr;