UnknownInterface.hpp

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/*  Filename   :     UnkonwnInterface.h
 *  Creator    :     Clinton Stimpson
 *
 *  Date       :     10 Jan 2002
 *
 *  Owner      :     Clinton Stimpson
 *
 *  Description:     Contains declarations for MBuuid which keeps
 *                   track of different interfaces.
 *                   Also contains the declaration for the base class
 *                   UknownInterface from which all interfaces are
 *                   derived from
 */

#ifndef MOAB_UNKNOWN_INTERFACE_HPP
#define MOAB_UNKNOWN_INTERFACE_HPP

#include <memory.h>

namespace moab {


// note: this MBuuid is compliant with the windows GUID.  
// It is possible to do a memcpy() to copy the data from a MBuuid to a GUID
// if we want to support dll registration
struct MBuuid
{
   MBuuid()
   {
      memset( this, 0, sizeof(MBuuid) );
   }
   MBuuid( unsigned l, unsigned short w1, unsigned short w2, 
         unsigned char b1, unsigned char b2, unsigned char b3, 
         unsigned char b4, unsigned char b5, unsigned char b6, 
         unsigned char b7, unsigned char b8 )
   {
      data1 = l;
      data2 = w1;
      data3 = w2;
      data4[0] = b1;
      data4[1] = b2;
      data4[2] = b3;
      data4[3] = b4;
      data4[4] = b5;
      data4[5] = b6;
      data4[6] = b7;
      data4[7] = b8;
   }
   MBuuid( const MBuuid& mdbuuid )
   {
      memcpy( this, &mdbuuid, sizeof(MBuuid));
   }
   MBuuid &operator=(const MBuuid& orig)
   {
      memcpy( this, &orig, sizeof(MBuuid));
      return *this;
   }
   bool operator==(const MBuuid& orig) const
   {
      return !memcmp(this, &orig, sizeof(MBuuid));
   }
   bool operator!=(const MBuuid& orig) const
   {
      return!(*this == orig);
   }

   unsigned   data1;
   unsigned short data2;
   unsigned short data3;
   unsigned char  data4[8];
};
  
static const MBuuid IDD_MBUnknown = MBuuid( 0xf4f6605e, 0x2a7e, 0x4760, 
   0xbb, 0x06, 0xb9, 0xed, 0x27, 0xe9, 0x4a, 0xec );


class UnknownInterface
{
public:
   virtual int QueryInterface
      ( const MBuuid&, UnknownInterface** ) = 0;
   virtual ~UnknownInterface() {}
};

} // namespace moab 

#endif  // MOAB_UNKNOWN_INTERFACE_HPP