1XkbAddGeomSection(3) XKB FUNCTIONS XkbAddGeomSection(3)
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6 XkbAddGeomSection - Add one section to an existing keyboard geometry
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9 XkbSectionPtr XkbAddGeomSection (XkbGeometryPtr geom, Atom name, int
10 sz_rows, int sz_doodads, int sz_overlays);
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13 - geom geometry to be updated
14 - name name of the new section
16 - sz_rows
18 number of rows to reserve in the section
19 - sz_doodads
21 number of doodads to reserve in the section
22 - sz_overlays
24 number of overlays to reserve in the section
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27 Xkb provides functions to add a single new element to the top-level
28 keyboard geometry. In each case the num_ * fields of the corresponding
29 structure is incremented by 1. These functions do not change sz_* un‐
30 less there is no more room in the array. Some of these functions fill
31 in the values of the element's structure from the arguments. For other
32 functions, you must explicitly write code to fill the structure's ele‐
33 ments.
34 The top-level geometry description includes a list of geometry proper‐
36 ties. A geometry property associates an arbitrary string with an
37 equally arbitrary name. Programs that display images of keyboards can
38 use geometry properties as hints, but they are not interpreted by Xkb.
39 No other geometry structures refer to geometry properties.
40 A keyboard geometry contains an arbitrary number of sections. XkbAd‐
42 dGeomSection adds one section to an existing keyboard geometry geom.
43 The new section contains space for the number of rows, doodads, and
44 overlays specified by sz_rows, sz_doodads, and sz_overlays. The new
45 section is allocated and zeroed and given the name specified by name.
46 If a section with name name already exists in the geometry, a pointer
47 to the existing section is returned. XkbAddGeomSection returns NULL if
48 any of the parameters is empty or if it was not able to allocate space
49 for the section. To allocate space for an arbitrary number of sections
50 to a geometry, use XkbAllocGeomSections.
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53 typedef struct _XkbSection {
54 Atom name; /* section name */
55 unsigned char priority; /* drawing priority, 0=>highest, 255=>lowest */
56 short top; /* top coordinate of section origin */
57 short left; /* left coordinate of row origin */
58 unsigned short width; /* section width, in mm/10 */
59 unsigned short height; /* section height, in mm/10 */
60 short angle; /* angle of section rotation, counterclockwise */
61 unsigned short num_rows; /* number of rows in the rows array */
62 unsigned short num_doodads; /* number of doodads in the doodads array */
63 unsigned short num_overlays; /* number of overlays in the overlays array */
64 unsigned short sz_rows; /* size of the rows array */
65 unsigned short sz_doodads; /* size of the doodads array */
66 unsigned short sz_overlays; /* size of the overlays array */
67 XkbRowPtr rows; /* section rows array */
68 XkbDoodadPtr doodads; /* section doodads array */
69 XkbBoundsRec bounds; /* bounding box for the section, before rotation*/
70 XkbOverlayPtr overlays; /* section overlays array */
71 } XkbSectionRec, *XkbSectionPtr;
72 top and left are the origin of the section, relative to the origin of
74 the keyboard, in mm/10. angle is in 1/10 degrees.
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77 XkbAllocGeomSections(3)
78X Version 11 libX11 1.7.3.1 XkbAddGeomSection(3)