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X11R7.4 - man page for xkbaddgeomshape (x11r4 section 3)

XkbAddGeomShape(3)			  XKB FUNCTIONS 		       XkbAddGeomShape(3)

       XkbAddGeomShape - Add a shape to a keyboard geometry

       XkbShapePtr XkbAddGeomShape ( geom, name, sz_outlines )
	     XkbGeometryPtr geom;
	     Atom name;
	     int sz_outlines;

       - geom geometry to be updated

       - name name of the new shape

       - sz_outlines
	      number of outlines to be reserved

       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 dis-
       play  images  of  keyboards  can use geometry properties as hints, but they are not inter-
       preted by Xkb. No other geometry structures refer to geometry properties.

       A geometry contains an arbitrary number of shapes, each of which is made up  of	an  arbi-
       trary  number  of outlines.  XkbAddGeomShape adds a shape to a geometry geom by allocating
       space for sz_outlines outlines for it and giving it the name  specified	by  name.   If	a
       shape  with  name  name already exists in the geometry, a pointer to the existing shape is
       returned.  XkbAddGeomShape returns NULL if any of the parameters is empty or if it was not
       able  to allocate space. To allocate space for an arbitrary number of geometry shapes, use

	   typedef struct _XkbShape {
	       Atom		 name;		 /* shape's name */
	       unsigned short	 num_outlines;	 /* number of outlines for the shape */
	       unsigned short	 sz_outlines;	 /* size of the outlines array */
	       XkbOutlinePtr	 outlines;	 /* array of outlines for the shape */
	       XkbOutlinePtr	 approx;	 /* pointer into the array to the approximating outline */
	       XkbOutlinePtr	 primary;	 /* pointer into the array to the primary outline */
	       XkbBoundsRec	 bounds;	 /* bounding box for the shape; encompasses all outlines */
	   } XkbShapeRec, *XkbShapePtr;


X Version 11				   libX11 1.2.1 		       XkbAddGeomShape(3)

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