hpux man page for xallocclasshint

XAllocClassHint()														 XAllocClassHint()

Name
  XAllocClassHint - allocate an XClassHint structure.

Synopsis
  XClassHint *XAllocClassHint( )

Returns
  The allocated structure.

Availability
  Release 4 and later.

Description
  XAllocClassHint()  allocates	and  returns a pointer to an XClassHint structure, for use in calling XSetWMProperties(), XGetClassHint(), or
  XSetClassHint().  Note that the pointer fields in the XClassHint structure are initially set to NULL.  If insufficient memory is available,
  XAllocClassHint() 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 {
      char *res_name;
      char *res_class;
  } XClassHint;

See Also
  XGetClassHint(), XSetClassHint(), XSetWMProperties().

Xlib - Window Manager Hints													 XAllocClassHint()