GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  XKBSETMAP (3)

NAME

XkbSetMap - Send a complete new set of values for entire components to the server.

CONTENTS

Synopsis
Arguments
Description
Structures
Diagnostics

SYNOPSIS

Bool XkbSetMap (Display *dpy, unsigned int which, XkbDescPtr xkb);    

ARGUMENTS

- dpy connection to X server
- which mask selecting subcomponents to update
- xkb description from which new values are taken

DESCRIPTION

There are two ways to make changes to map components: either change a local copy of the keyboard map and call XkbSetMap to send the modified map to the server, or, to reduce network traffic, use an XkbMapChangesRec structure and call XkbChangeMap.

Use XkbSetMap to send a complete new set of values for entire components (for example, all symbols, all actions, and so on) to the server. The which parameter specifies the components to be sent to the server, and is a bitwise inclusive OR of the masks listed in Table 1. The xkb parameter is a pointer to an XkbDescRec structure and contains the information to be copied to the server. For each bit set in the which parameter, XkbSetMap takes the corresponding structure values from the xkb parameter and sends it to the server specified by dpy.

If any components specified by which are not present in the xkb parameter, XkbSetMap returns False. Otherwise, it sends the update request to the server and returns True. XkbSetMap can generate BadAlloc, BadLength, and BadValue protocol errors.

Key types, symbol maps, and actions are all interrelated; changes in one require changes in the others. Xkb provides functions to make it easier to edit these components and handle the interdependencies. Table 1 lists these helper functions and provides a pointer to where they are defined.

Table 1 Xkb Mapping Component Masks
and Convenience Functions
MaskValueMapFieldsConvenience
    Functions
XkbKeyTypesMask (1<<0)clienttypes
size_types
num_types
XkbGetKeyTypes
XkbResizeKeyType
XkbCopyKeyType
XkbCopyKeyTypes
XkbKeySymsMask (1<<1)clientsyms
size_syms
num_syms
key_sym_map
XkbGetKeySyms
XkbResizeKeySyms
XkbChangeTypesOfKey
XkbModifierMapMask (1<<2)clientmodmapXkbGetKeyModifierMap
XkbExplicitComponentsMask (1<<3)serverexplicit XkbGetKeyExplicitComponents
XkbKeyActionsMask (1<<4)serverkey_acts
acts
num_acts
size_acts
XkbGetKeyActions
XkbResizeKeyActions
XkbKeyBehaviorsMask (1<<5)serverbehaviors XkbGetKeyBehaviors
XkbVirtualModsMask (1<<6)servervmods XkbGetVirtualMods
XkbVirtualModMapMask (1<<7)servervmodmap XkbGetVirtualModMap

The changed field identifies the map components that have changed in an XkbDescRec structure and may contain any of the bits in Table 1, which are also shown in Table 2. Every 1 bit in changed also identifies which other fields in the XkbMapChangesRec structure contain valid values, as indicated in Table 2. The min_key_code and max_key_code fields are for reference only; they are ignored on any requests sent to the server and are always updated by the server whenever it returns the data for an XkbMapChangesRec.

Table 2 XkbMapChangesRec Masks
 Valid 
MaskXkbMapChangesRecXkbDescRec Field Containing
 FieldsChanged Data
XkbKeyTypesMaskfirst_type,map->type[first_type] ..
 num_typesmap->type[first_type + num_types - 1]
XkbKeySymsMaskfirst_key_sym,map->key_sym_map[first_key_sym] ..
 num_key_symsmap->key_sym_map[first_key_sym +
  num_key_syms - 1]
XkbModifierMapMaskfirst_modmap_key,map->modmap[first_modmap_key] ..
 num_modmap_keysmap->modmap[first_modmap_key +
  num_modmap_keys-1]
XkbExplicitComponentsMaskfirst_key_explicit, 
server->explicit[first_key_explicit] ..  
 num_key_explicitserver->explicit[first_key_explicit +
  num_key_explicit - 1]
XkbKeyActionsMaskfirst_key_act,server->key_acts[first_key_act] ..
 num_key_actsserver->key_acts[first_key_act +
  num_key_acts - 1]
XkbKeyBehaviorsMaskfirst_key_behavior, 
server->behaviors[first_key_behavior] ..  
 num_key_behaviorsserver->behaviors[first_key_behavior +
  num_key_behaviors - 1]
XkbVirtualModsMaskvmodsserver->vmods[*]
XkbVirtualModMapMaskfirst_vmodmap_key, 
server->vmodmap[first_vmodmap_key]  
 num_vmodmap_keys ..
  server->vmodmap[first_vmodmap_key
  + num_vmodmap_keys - 1]

RETURN VALUES

True The XkbSetMap function returns True all components specified by which are present in the xkb parameter.
False The XkbSetMap function returns False if any component specified by which is not present in the xkb parameter.

STRUCTURES

Use the XkbMapChangesRec structure to identify and track partial modifications to the mapping components and to reduce the amount of traffic between the server and clients.

typedef struct _XkbMapChanges { unsigned short changed; /* identifies valid components in structure */ KeyCode min_key_code; /* lowest numbered keycode for device */ KeyCode max_key_code; /* highest numbered keycode for device */ unsigned char first_type; /* index of first key type modified */ unsigned char num_types; /* # types modified */ KeyCode first_key_sym; /* first key whose key_sym_map changed */ unsigned char num_key_syms; /* # key_sym_map entries changed */ KeyCode first_key_act; /* first key whose key_acts entry changed */ unsigned char num_key_acts; /* # key_acts entries changed */ KeyCode first_key_behavior; /* first key whose behaviors changed */ unsigned char num_key_behaviors; /* # behaviors entries changed */ KeyCode first_key_explicit; /* first key whose explicit entry changed */ unsigned char num_key_explicit; /* # explicit entries changed */ KeyCode first_modmap_key; /* first key whose modmap entry changed */ unsigned char num_modmap_keys; /* # modmap entries changed */ KeyCode first_vmodmap_key; /* first key whose vmodmap changed */ unsigned char num_vmodmap_keys; /* # vmodmap entries changed */ unsigned char pad1; /* reserved */ unsigned short vmods; /* mask indicating which vmods changed */ } XkbMapChangesRec,*XkbMapChangesPtr;

The complete description of an Xkb keyboard is given by an XkbDescRec. The component structures in the XkbDescRec represent the major Xkb components.

typedef struct {
   struct _XDisplay * display;      /* connection to X server */
   unsigned short     flags;        /* private to Xkb, do not modify */
   unsigned short     device_spec;  /* device of interest */
   KeyCode            min_key_code; /* minimum keycode for device */
   KeyCode            max_key_code; /* maximum keycode for device */
   XkbControlsPtr     ctrls;        /* controls */
   XkbServerMapPtr    server;       /* server keymap */
   XkbClientMapPtr    map;          /* client keymap */
   XkbIndicatorPtr    indicators;   /* indicator map */
   XkbNamesPtr        names;        /* names for all components */
   XkbCompatMapPtr    compat;       /* compatibility map */
   XkbGeometryPtr     geom;         /* physical geometry of keyboard */
} XkbDescRec, *XkbDescPtr;

The display field points to an X display structure. The flags field is private to the library: modifying flags may yield unpredictable results. The device_spec field specifies the device identifier of the keyboard input device, or XkbUseCoreKeyboard, which specifies the core keyboard device. The min_key_code and max_key_code fields specify the least and greatest keycode that can be returned by the keyboard.

Each structure component has a corresponding mask bit that is used in function calls to indicate that the structure should be manipulated in some manner, such as allocating it or freeing it. These masks and their relationships to the fields in the XkbDescRec are shown in Table 3.

Table 3 Mask Bits for XkbDescRec
Mask BitXkbDescRec FieldValue
XkbControlsMaskctrls(1L<<0)
XkbServerMapMaskserver(1L<<1)
XkbIClientMapMaskmap(1L<<2)
XkbIndicatorMapMaskindicators(1L<<3)
XkbNamesMasknames(1L<<4)
XkbCompatMapMaskcompat(1L<<5)
XkbGeometryMaskgeom(1L<<6)
XkbAllComponentsMaskAll Fields(0x7f)

DIAGNOSTICS

BadAlloc Unable to allocate storage
BadLength The length of a request is shorter or longer than that required to minimally contain the arguments
BadValue An argument is out of range

SEE ALSO

XkbChangeMap(3), XkbChangeTypesOfKey(3), XkbCopyKeyType(3), XkbCopyKeyTypes(3), XkbGetKeyActions(3), XkbGetKeyBehaviors(3), XkbGetKeyExplicitComponents(3), XkbGetKeyModifierMap(3), XkbGetKeySyms(3), XkbGetKeyTypes(3), XkbResizeKeyActions(3), XkbResizeKeySyms(3), XkbResizeKeyType(3), XkbGetVirtualModMap(3), XkbGetVirtualMods(3)
Search for    or go to Top of page |  Section 3 |  Main Index


X Version 11 XKBSETMAP (3) libX11 1.6.3

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.