188 lines
6.0 KiB
Groff
188 lines
6.0 KiB
Groff
'\" t
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.\" Copyright 1999 Oracle and/or its affiliates. All rights reserved.
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining a
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.\" copy of this software and associated documentation files (the "Software"),
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.\" to deal in the Software without restriction, including without limitation
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.\" the rights to use, copy, modify, merge, publish, distribute, sublicense,
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.\" and/or sell copies of the Software, and to permit persons to whom the
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.\" Software is furnished to do so, subject to the following conditions:
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.\"
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.\" The above copyright notice and this permission notice (including the next
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.\" paragraph) shall be included in all copies or substantial portions of the
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.\" Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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.\" THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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.\" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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.\" FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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.\" DEALINGS IN THE SOFTWARE.
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.\"
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.TH XkbFreeServerMap __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
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.SH NAME
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XkbFreeServerMap \- Free memory used by the server member of an XkbDescRec
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structure
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.SH SYNOPSIS
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.HP
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.B void XkbFreeServerMap
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.BI "(\^XkbDescPtr " "xkb" "\^,"
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.BI "unsigned int " "which" "\^,"
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.BI "Bool " "free_all" "\^);"
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.if n .ti +5n
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.if t .ti +.5i
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.SH ARGUMENTS
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.TP
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.I \- xkb
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keyboard description containing server map to free
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.TP
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.I \- which
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mask identifying components of map to free
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.TP
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.I \- free_all
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True => free all server map components and server itself
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.SH DESCRIPTION
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.LP
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The
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.I XkbFreeServerMap
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function frees the specified components of server map in the XkbDescRec
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structure specified by the
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.I xkb
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parameter and sets the corresponding structure component values to NULL. The
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.I which parameter specifies a combination of the server map masks and is a
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bitwise inclusive OR
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of the masks listed in Table 1. If
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.I free_all
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is True,
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.I which
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is ignored and
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.I XkbFreeServerMap
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frees every non-NULL structure component in the server map, frees the
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XkbServerMapRec structure
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referenced by the
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.I server
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member of the
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.I xkb
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parameter, and sets the
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.I server
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member to NULL.
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.TS
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c s
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l l
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l lw(4i).
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Table 1 XkbAllocServerMap Masks
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_
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Mask Effect
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_
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XkbExplicitComponentsMask T{
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The min_key_code and max_key_code fields of the xkb parameter are used to
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allocate the explicit field of the server map.
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T}
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.sp
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XkbKeyActionsMask T{
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The min_key_code and max_key_code fields of the xkb parameter are used to
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allocate the key_acts
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field of the server map. The count_acts parameter is used to allocate the acts
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field of the
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server map.
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T}
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.sp
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XkbKeyBehaviorsMask T{
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The min_key_code and max_key_code fields of the xkb parameter are used to
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allocate the behaviors
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field of the server map.
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T}
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.sp
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XkbVirtualModMapMask T{
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The min_key_code and max_key_code fields of the xkb parameter are used to
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allocate the vmodmap
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field of the server map.
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T}
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.TE
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.SH STRUCTURES
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.LP
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The complete description of an Xkb keyboard is given by an XkbDescRec. The
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component
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structures in the XkbDescRec represent the major Xkb components.
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.nf
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typedef struct {
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struct _XDisplay * display; /\(** connection to X server */
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unsigned short flags; /\(** private to Xkb, do not modify */
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unsigned short device_spec; /\(** device of interest */
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KeyCode min_key_code; /\(** minimum keycode for device */
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KeyCode max_key_code; /\(** maximum keycode for device */
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XkbControlsPtr ctrls; /\(** controls */
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XkbServerMapPtr server; /\(** server keymap */
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XkbClientMapPtr map; /\(** client keymap */
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XkbIndicatorPtr indicators; /\(** indicator map */
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XkbNamesPtr names; /\(** names for all components */
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XkbCompatMapPtr compat; /\(** compatibility map */
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XkbGeometryPtr geom; /\(** physical geometry of keyboard */
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} XkbDescRec, *XkbDescPtr;
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.fi
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The
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.I display
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field points to an X display structure. The
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.I flags field is private to the library: modifying
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.I flags
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may yield unpredictable results. The
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.I device_spec
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field specifies the device identifier of the keyboard input device, or
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XkbUseCoreKeyboard, which specifies the core keyboard device. The
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.I min_key_code
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and
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.I max_key_code
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fields specify the least and greatest keycode that can be returned by the
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keyboard.
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Each structure component has a corresponding mask bit that is used in function
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calls to
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indicate that the structure should be manipulated in some manner, such as
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allocating it
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or freeing it. These masks and their relationships to the fields in the
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XkbDescRec are
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shown in Table 2.
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.TS
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c s s
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l l l
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l l l.
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Table 2 Mask Bits for XkbDescRec
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_
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Mask Bit XkbDescRec Field Value
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_
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XkbControlsMask ctrls (1L<<0)
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XkbServerMapMask server (1L<<1)
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XkbIClientMapMask map (1L<<2)
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XkbIndicatorMapMask indicators (1L<<3)
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XkbNamesMask names (1L<<4)
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XkbCompatMapMask compat (1L<<5)
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XkbGeometryMask geom (1L<<6)
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XkbAllComponentsMask All Fields (0x7f)
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.TE
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The Xkb server map contains the information the server needs to interpret key
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events and is of
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type XkbServerMapRec:
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.nf
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\&#define XkbNumVirtualMods 16
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typedef struct { /\(** Server Map */
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unsigned short num_acts; /\(** # of occupied entries in acts */
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unsigned short size_acts; /\(** # of entries in acts */
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XkbAction * acts; /\(** linear 2d tables of key actions, 1 per keycode */
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XkbBehavior * behaviors; /\(** key behaviors,1 per keycode */
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unsigned short * key_acts; /\(** index into acts, 1 per keycode */
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unsigned char * explicit; /\(** explicit overrides of core remapping, 1 per key */
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unsigned char vmods[XkbNumVirtualMods]; /\(** real mods bound to virtual mods */
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unsigned short * vmodmap; /\(** virtual mods bound to key, 1 per keycode*/
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} XkbServerMapRec, *XkbServerMapPtr;
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.fi
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