/*
     File:       DeviceControl.h
 
     Contains:   Component API for doing AVC transactions.
 
     Version:    QuickTime 7.3
 
     Copyright:  (c) 2007 (c) 1999-2001 by Apple Computer, Inc., all rights reserved.
 
     Bugs?:      For bug reports, consult the following page on
                 the World Wide Web:
 
                     http://developer.apple.com/bugreporter/
 
*/
#ifndef __DEVICECONTROL__
#define __DEVICECONTROL__

#ifndef __MACTYPES__
#include <MacTypes.h>
#endif

#ifndef __COMPONENTS__
#include <Components.h>
#endif





#if PRAGMA_ONCE
#pragma once
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if PRAGMA_IMPORT
#pragma import on
#endif

#if PRAGMA_STRUCT_ALIGN
    #pragma options align=mac68k
#elif PRAGMA_STRUCT_PACKPUSH
    #pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
    #pragma pack(2)
#endif

typedef CALLBACK_API_C( UInt32 , DCResponseHandler )(UInt32 fwCommandObjectID, Ptr responseBuffer, UInt32 responseLength);
struct DVCTransactionParams {
  Ptr                 commandBufferPtr;
  UInt32              commandLength;
  Ptr                 responseBufferPtr;
  UInt32              responseBufferSize;
  DCResponseHandler * responseHandler;
};
typedef struct DVCTransactionParams     DVCTransactionParams;
/*
 *  DeviceControlDoAVCTransaction()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in IDHLib 1.0 and later
 *    CarbonLib:        in CarbonLib 1.3 and later
 *    Mac OS X:         not available
 */
EXTERN_API( ComponentResult )
DeviceControlDoAVCTransaction(
  ComponentInstance       instance,
  DVCTransactionParams *  params)                             FIVEWORDINLINE(0x2F3C, 0x0004, 0x0001, 0x7000, 0xA82A);




/* selectors for component calls */
enum {
    kDeviceControlDoAVCTransactionSelect       = 0x0001
};

#if PRAGMA_STRUCT_ALIGN
    #pragma options align=reset
#elif PRAGMA_STRUCT_PACKPUSH
    #pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
    #pragma pack()
#endif

#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif

#ifdef __cplusplus
}
#endif

#endif /* __DEVICECONTROL__ */