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XkbComputeShapeTop(3)		 XKB FUNCTIONS		 XkbComputeShapeTop(3)

NAME
       XkbComputeShapeTop  - Determines	the bounding box of the	top surface of
       a shape

SYNOPSIS
       Bool XkbComputeShapeTop (XkbShapePtr shape, XkbBoundsPtr	bounds_rtrn);

ARGUMENTS
       - shape
	      shape to be examined

       - bounds_rtrn
	      backfilled with the bounding box for the shape

DESCRIPTION
       Xkb provides a number of	convenience functions to help use  a  keyboard
       geometry.   These  include  functions  to  return the bounding box of a
       shape's top surface and to update the bounding box of a	shape  row  or
       section.

       A  shape	 is made up of a number	of outlines. Each outline is a polygon
       made up of a number of points. The bounding box of a shape is a rectan-
       gle that	contains all the outlines of that shape.

       XkbComputeShapeTop  returns a BoundsRec that contains two x and y coor-
       dinates.	These coordinates describe the corners	of  a  rectangle  that
       contains	 the  outline that describes the top surface of	the shape. The
       top surface is defined to be the	approximating outline  if  the	approx
       field  of  shape	is not NULL. If	approx is NULL,	the top	surface	is de-
       fined as	the last outline in the	shape's	array  of  outlines.   XkbCom-
       puteShapeTop returns False if shape is NULL or if there are no outlines
       for the shape; otherwise, it returns True.

STRUCTURES
       typedef struct _XkbBounds {
	    short     x1,y1;	/* upper left corner of	the bounds, in mm/10 */
	    short     x2,y2;	/* lower right corner of the bounds, in	mm/10 */
       } XkbBoundsRec, *XkbBoundsPtr;

X Version 11			 libX11	1.6.5		 XkbComputeShapeTop(3)

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | STRUCTURES

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