hpux man page for xallocsizehints

XAllocSizeHints()														 XAllocSizeHints()

Name
  XAllocSizeHints - allocate an XSizeHints structure.

Synopsis
  XSizeHints *XAllocSizeHints( )

Returns
  The allocated structure.

Availability
  Release 4 and later.

Description
  XAllocSizeHints()  allocates	and returns a pointer to an XSizeHints structure, for use in calling XSetWMProperties(), XSetWMNormalHints(),
  or XGetWMNormalHints().  Note that all fields in the XSizeHints structure are initially set to zero.	If insufficient memory is  available,
  XAllocSizeHints() returns NULL.  To free the memory allocated to this structure, use XFree().

  The  purpose	of  this function is to avoid compiled-in structure sizes, so that object files will be binary compatible with later releases
  that may have new members added to structures.

  For more information, see Volume One, Chapter 12, Interclient Communication.

Structures
     typedef struct {
	 long flags;	    /* marks which fields in this structure are defined */
	 int x, y;	    /* Obsolete */
	 int width, height; /* Obsolete */
	 int min_width, min_height;
	 int max_width, max_height;
	 int width_inc, height_inc;
	 struct {
	     int x;	    /* numerator */
	     int y;	    /* denominator */
	 } min_aspect, max_aspect;
	 int base_width, base_height;
	 int win_gravity;
     } XSizeHints;

See Also
  XGetWMNormalHints(), XSetWMNormalHints(), XSetWMProperties().

Xlib - Window Manager Hints													 XAllocSizeHints()