xenocara/lib/libX11/man/xkb/XkbAllocCompatMap.man

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.TH XkbAllocCompatMap __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
.SH NAME
XkbAllocCompatMap \- Allocate a new compatibility map if you do not already have one available
.SH SYNOPSIS
.HP
.B Status XkbAllocCompatMap
.BI "(\^XkbDescPtr " "xkb" "\^,"
.BI "unsigned int " "which" "\^,"
.BI "unsigned int " "num_si" "\^);"
.if n .ti +5n
.if t .ti +.5i
.SH ARGUMENTS
.TP
.I \- xkb
keyboard description in which to allocate compat map
.TP
.I \- which
mask of compatibility map components to allocate
.TP
.I \- num_si
number of symbol interpretations to allocate
.SH DESCRIPTION
.LP
.I xkb
specifies the keyboard description for which compatibility maps are to be allocated. The compatibility map is the
.I compat
field in this structure.
.I which
specifies the compatibility map components to be allocated (see XkbGetCompatMap).
.I which
is an inclusive OR of the bits shown in Table 1.
.TS
c s s
l l l.
Table 1 Compatibility Map Component Masks
_
Mask Value Affecting
_
XkbSymInterpMask (1<<0) Symbol interpretations
XkbGroupCompatMask (1<<1) Group maps
XkbAllCompatMask (0x3) All compatibility map components
.TE
.I num_si
specifies the total number of entries to allocate in the symbol interpretation vector
.I (xkb.compat.sym_interpret).
.I XkbAllocCompatMap
returns Success if successful, BadMatch if
.I xkb
is NULL, or BadAlloc if errors are encountered when attempting to allocate storage.
.SH STRUCTURES
.LP
.nf
typedef struct {
KeySym sym; /\(** keysym of interest or NULL */
unsigned char flags; /\(** XkbSI_AutoRepeat, XkbSI_LockingKey */
unsigned char match; /\(** specifies how mods is interpreted */
unsigned char mods; /\(** modifier bits, correspond to eight real modifiers */
unsigned char virtual_mod; /\(** 1 modifier to add to key virtual mod map */
XkbAnyAction act; /\(** action to bind to symbol position on key */
} XkbSymInterpretRec,*XkbSymInterpretPtr;
.fi
.SH DIAGNOSTICS
.TP 15
.B BadAlloc
Unable to allocate storage
.TP 15
.B BadMatch
A compatible version of Xkb was not available in the server or an argument has correct type and range, but is otherwise invalid
.SH "SEE ALSO"
.BR XkbGetCompatMap (__libmansuffix__)
.SH NOTES
.LP
Note that symbol interpretations in a compatibility map (the
.I sym_interpret
vector of XkbSymInterpretRec structures) are also allocated using this same function. To ensure that there is sufficient space in the symbol interpretation vector for entries to be added, use
.I XkbAllocCompatMap
specifying
.I which
as XkbSymInterpretMask and the number of free symbol interpretations needed in
.I num_si.