DeviceControl.h

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#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;
  ComponentResult
  DeviceControlDoAVCTransaction(ComponentInstance instance,
                                DVCTransactionParams *params);
 
  /* 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__ */