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_* unless 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 elements.
The top-level geometry description includes a list of
geometry
properties. 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.
XkbAddGeomOutline
adds an outline to the specified
shape by reserving
sz_points
points for it. The new outline is allocated and zeroed.
XkbAddGeomOutline 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;
SEE ALSO¶
XkbAllocGeomOutlines(3)