NAME
	  DtGroupGetBlindData - Get the blinddata that is attached to the
	  given group in a particular shape.


     SYNOPSIS
	  #include <Dt.h>


	  int  DtGroupGetBlindData(int shapeID, int groupID, long LBoxID,
					   int LMaxSize, void* LData)


     DESCRIPTION
	  DtGroupGetBlindData() returns the blinddata attached to the
	  given group of the given shape using the given 'mailbox' or
	  'hanger' ID.
	  The shape is indicated by the shapeID parameter, the group by
	  the groupID parameter, the 'mailbox' ID is given by LBoxID.
	  The result is placed to LData.
	  LMaxSize indicates the size of the return buffer (LData).

     DIAGNOSTICS
	  Returns zero on failure. Otherwise returns the size of the
	  blinddata in bytes.

     FILES
	  Link with -lDtOMio