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XkbAddGeomOverlayKey - Man Page

Add a key to an existing overlay row


XkbOverlayKeyPtr XkbAddGeomOverlayKey (XkbOverlayPtr overlay, XkbRowPtr row, _Xconst char *over, _Xconst char *under);



overlay to be updated


row in overlay to be updated


primary name of the key to be considered


Xkb provides functions to add a single new element to the top-level keyboard  geometry. In each case the num_ * fields of the corresponding structure is incremented by 1. These functions do  not change sz_* unless there is no more room in the array. Some of these functions fill in the  values of the element's structure from the arguments. For other functions, you  must explicitly write code to fill the structure's elements.

The top-level geometry description includes a list of geometry properties. A geometry property associates an arbitrary string with an equally arbitrary  name. Programs that display images of keyboards can use geometry properties as  hints, but they are not interpreted by Xkb. No other geometry structures refer  to geometry properties.

XkbAddGeomOverlayKey adds one key to the row in the overlay. If there is no key named under in the row of the underlying section, XkbAddGeomOverlayKey returns NULL.


    typedef struct _XkbOverlayKey {
        XkbKeyNameRec           over;      /* name of this overlay key */
        XkbKeyNameRec           under;     /* name of the key under this overlay key */
    } XkbOverlayKeyRec,*XkbOverlayKeyPtr;


libX11 1.8.9 X Version 11 XKB FUNCTIONS