XkbSetNames - Online Linux Manual PageSection : 3
Updated : libX11 1.8.4
Source : X Version 11
Note : XKB FUNCTIONS
NAMEXkbSetNames − Change the symbolic names in the server
SYNOPSISBool XkbSetNames ( Display *dpy , unsigned int which , unsigned int first_type , unsigned int num_types , XkbDescPtr xkb );
ARGUMENTSdpy connection to the X server which mask of names or map components to be changed first_type first type whose name is to be changed num_types number of types for which names are to be changed xkb keyboard description from which names are to be taken
DESCRIPTIONTo change the symbolic names in the server, first modify a local copy of the keyboard description and then use either XkbSetNames, or, to save network traffic, use a XkbNameChangesRecstructure and call XkbChangeNames to download the changes to the server. XkbSetNames and XkbChangeNames can generate BadAlloc, BadAtom, BadLength, BadMatch, and BadImplementation errors. Use XkbSetNames to change many names at the same time. For each bit set in which, XkbSetNames takes the corresponding value (or values in the case of arrays) from the keyboard description xkb and sends it to the server. The first_type and num_types arguments are used only if XkbKeyTypeNamesMask or XkbKTLevelNamesMask is set in which and specify a subset of the types for which the corresponding names are to be changed. If either or both of these mask bits are set but the specified types are illegal, XkbSetNames returns False and does not update any of the names specified in which. The specified types are illegal if xkb does not include a map component or if first_type and num_types specify types that are not defined in the keyboard description.
STRUCTURESThe XkbNameChangesRec allows applications to identify small modifications to the symbolic names and effectively reduces the amount of traffic sent to the server: typedef struct _XkbNameChanges {
unsigned int changed; /* name components that have changed */
unsigned char first_type; /* first key type with a new name */
unsigned char num_types; /* number of types with new names */
unsigned char first_lvl; /* first key type with new level names */
unsigned char num_lvls; /* number of key types with new level names */
unsigned char num_aliases; /* if key aliases changed, total number of key aliases */
unsigned char num_rg; /* if radio groups changed, total number of radio groups */
unsigned char first_key; /* first key with a new name */
unsigned char num_keys; /* number of keys with new names */
unsigned short changed_vmods; /* mask of virtual modifiers for which names have changed */
unsigned long changed_indicators; /* mask of indicators for which names were changed */
unsigned char changed_groups; /* mask of groups for which names were changed */
} XkbNameChangesRec, *XkbNameChangesPtr
The changed field specifies the name components that have changed and is the bitwise inclusive OR of the valid names mask bits defined in Table 1. The rest of the fields in the structure specify the ranges that have changed for the various kinds of symbolic names, as shown in Table 2. Xkb provides several functions that work with symbolic names. Each of these functions uses a mask to specify individual fields of the structures described above. These masks and their relationships to the fields in a keyboard description are shown in Table 1. Table 1 Symbolic Names Masks Mask BitValueKeyboardField Component XkbKeycodesNameMask(1<<0)Xkb->nameskeycodes XkbGeometryNameMask(1<<1)Xkb->namesgeometry XkbSymbolsNameMask(1<<2)Xkb->namessymbols XkbPhysSymbolsNameMask(1<<3)Xkb->namesphys_symbols XkbTypesNameMask(1<<4)Xkb->namestype XkbCompatNameMask(1<<5)Xkb->namescompat XkbKeyTypeNamesMask(1<<6)Xkb->maptype[*].name XkbKTLevelNamesMask(1<<7)Xkb->maptype[*].lvl_names[*] XkbIndicatorNamesMask(1<<8)Xkb->namesindicators[*] XkbKeyNamesMask(1<<9)Xkb->nameskeys[*], num_keys XkbKeyAliasesMask(1<<10)Xkb->nameskey_aliases[*], num_key_aliases XkbVirtualModNamesMask(1<<11)Xkb->namesvmods[*] XkbGroupNamesMask(1<<12)Xkb->namesgroups[*] XkbRGNamesMask(1<<13)Xkb->namesradio_groups[*], num_rg XkbComponentNamesMask(0x3f)Xkb->nameskeycodes, geometry, symbols, physical symbols, types, and compatibility map XkbAllNamesMask(0x3fff)Xkb->namesall name components Table 2 XkbNameChanges Fields MaskFieldsComponentField XkbKeyTypeNamesMaskfirst_type,Xkb->maptype[*].name num_types XkbKTLevelNamesMaskfirst_lvl,Xkb->maptype[*].lvl_names[*] num_lvls XkbKeyAliasesMasknum_aliasesXkb->nameskey_aliases[*] XkbRGNamesMasknum_rgXkb->namesradio_groups[*] XkbKeyNamesMaskfirst_key,Xkb->nameskeys[*] num_keys XkbVirtualModNamesMaskchanged_vmodsXkb->namesvmods[*] XkbIndicatorNamesMaskchanged_indicatorsXkb->namesindicators[*] XkbGroupNamesMaskchanged_groupsXkb->namesgroups[*]
DIAGNOSTICSBadAlloc Unable to allocate storage BadAtom A name is neither a valid Atom or None BadImplementation Invalid reply from server BadLength The length of a request is shorter or longer than that required to minimally contain the arguments 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 ALSOXkbChangeNames(3) 0
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