XkbCopyKeyTypes(3) XKB FUNCTIONS XkbCopyKeyTypes(3)
NAME
XkbCopyKeyTypes - Copy more than one XkbKeyTypeRec structure
SYNOPSIS
Status XkbCopyKeyTypes (XkbKeyTypePtr from, XkbKeyTypePtr into, int
num_types);
ARGUMENTS
from pointer to array of XkbKeyTypeRecs to copy
into pointer to array of XkbKeyTypeRecs to change
num_types
number of types to copy
DESCRIPTION
XkbCopyKeyTypes copies num_types XkbKeyTypeRec structures from the array
specified by from into the array specified by into. It is intended for
copying between, rather than within, keyboard descriptions, so it doesn't
check for overlaps. The same rules that apply to the from and into
parameters in XkbCopyKeyType apply to each entry of the from and into
arrays of XkbCopyKeyTypes. If any allocation errors occur while copying
from to into, XkbCopyKeyTypes returns BadAlloc. Otherwise,
XkbCopyKeyTypes copies from to into and returns Success.
RETURN VALUES
Success The XkbCopyKeyTypes function returns Success when there
are no allocation errors.
STRUCTURES
Key types are used to determine the shift level of a key given the
current state of the keyboard. The set of all possible key types for the
Xkb keyboard description are held in the types field of the client map,
whose total size is stored in size_types, and whose total number of valid
entries is stored in num_types. Key types are defined using the
following structure:
typedef struct { /* Key Type */
XkbModsRec mods; /* modifiers used to compute shift level */
unsigned char num_levels; /* total # shift levels, do not modify directly */
unsigned char map_count; /* # entries in map, preserve (if non-NULL) */
XkbKTMapEntryPtr map; /* vector of modifiers for each shift level */
XkbModsPtr preserve; /* mods to preserve for corresponding map entry */
Atom name; /* name of key type */
Atom * level_names; /* array of names of each shift level */
} XkbKeyTypeRec, *XkbKeyTypePtr;
DIAGNOSTICS
BadAlloc Unable to allocate storage
SEE ALSO
XkbCopyKeyType(3)
X Version 11 libX11 1.8.2 XkbCopyKeyTypes(3)
xorg-libX11 1.8.2 - Generated Sat Nov 19 08:47:33 CST 2022