NAME

SYNOPSIS

Bool XkbSetCompatMap (Display *display, unsigned int which, XkbDescPtr xkb, Bool update_actions);

ARGUMENTS

display

connection to server

which

mask of compat map components to set

xkb

source for compat map components

update_actions

True => apply to server's keyboard map

DESCRIPTION

After updating its compatibility map for the specified device, if update_actions is True, the server applies the new compatibility map to its entire keyboard for the device to generate a new set of key semantics, compatibility state, and a new core keyboard map. If update_actions is False, the new compatibility map is not used to generate any modifications to the current device semantics, state, or core keyboard map. One reason for not applying the compatibility map immediately would be if one server was being configured to match another on a piecemeal basis; the map should not be applied until everything is updated. To force an update at a later time, use XkbSetCompatMap specifying which as zero and update_actions as True. XkbSetCompatMap returns True if successful and False if unsuccessful. The server may report problems it encounters when processing the request subsequently via protocol errors.

RETURN VALUES

True

The XkbSetCompatMap function returns True if successful.

False

The XkbSetCompatMap function returns False if unsuccessful.

STRUCTURES

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 2.

The XkbSymInterpretRec structure specifies a symbol interpretation:

 
    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;

SEE ALSO