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CentOS 7.0 - man page for xkballoccompatmap (centos section 3)

XkbAllocCompatMap(3)				    XKB FUNCTIONS				 XkbAllocCompatMap(3)

NAME
XkbAllocCompatMap - Allocate a new compatibility map if you do not already have one available
SYNOPSIS
Status XkbAllocCompatMap (XkbDescPtr xkb, unsigned int which, unsigned int num_si);
ARGUMENTS
- xkb keyboard description in which to allocate compat map - which mask of compatibility map components to allocate - num_si number of symbol interpretations to allocate
DESCRIPTION
xkb specifies the keyboard description for which compatibility maps are to be allocated. The compatibility map is the compat field in this structure. which specifies the compatibility map components to be allocated (see XkbGetCompatMap). which is an inclusive OR of the bits shown in Table 1. 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 num_si specifies the total number of entries to allocate in the symbol interpretation vector (xkb.com- pat.sym_interpret). XkbAllocCompatMap returns Success if successful, BadMatch if xkb is NULL, or BadAlloc if errors are encoun- tered when attempting to allocate storage.
STRUCTURES
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;
DIAGNOSTICS
BadAlloc Unable to allocate storage BadMatch A compatible version of Xkb was not available in the server or an argument has correct type and range, but is otherwise invalid
SEE ALSO
XkbGetCompatMap(3)
NOTES
Note that symbol interpretations in a compatibility map (the sym_interpret vector of XkbSymInterpretRec struc- tures) 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 XkbAllocCompatMap specifying which as XkbSymInterpretMask and the number of free symbol interpretations needed in num_si. X Version 11 libX11 1.6.0 XkbAllocCompatMap(3)


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