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Retrace.h：源码内容
							/*
     File:       Retrace.h
 
     Contains:   Vertical Retrace Interfaces.
 
     Version:    Technology: System 7.5
                 Release:    QuickTime 6.0.2
 
     Copyright:  (c) 1985-2001 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 __RETRACE__
#define __RETRACE__
#ifndef __MACTYPES__
#include "MacTypes.h"
#endif
#ifndef __OSUTILS__
#include "OSUtils.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 struct VBLTask                  VBLTask;
typedef VBLTask *                       VBLTaskPtr;
typedef CALLBACK_API( void , VBLProcPtr )(VBLTaskPtr vblTaskPtr);
/*
    WARNING: VBLProcPtr uses register based parameters under classic 68k
             and cannot be written in a high-level language without 
             the help of mixed mode or assembly glue.
*/
typedef REGISTER_UPP_TYPE(VBLProcPtr)                           VBLUPP;
struct VBLTask {
    QElemPtr                        qLink;
    short                           qType;
    VBLUPP                          vblAddr;
    short                           vblCount;
    short                           vblPhase;
};
#if OPAQUE_UPP_TYPES
#if CALL_NOT_IN_CARBON
    EXTERN_API(VBLUPP)
    NewVBLUPP                      (VBLProcPtr              userRoutine);
    EXTERN_API(void)
    DisposeVBLUPP                  (VBLUPP                  userUPP);
    EXTERN_API(void)
    InvokeVBLUPP                   (VBLTaskPtr              vblTaskPtr,
                                    VBLUPP                  userUPP);
#endif  /* CALL_NOT_IN_CARBON */
#else
    enum { uppVBLProcInfo = 0x00009802 };                           /* register no_return_value Func(4_bytes:A0) */
    #define NewVBLUPP(userRoutine)                                  (VBLUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), uppVBLProcInfo, GetCurrentArchitecture())
    #define DisposeVBLUPP(userUPP)                                  DisposeRoutineDescriptor(userUPP)
    #if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
    #pragma parameter InvokeVBLUPP(__A0, __A1)
    void InvokeVBLUPP(VBLTaskPtr vblTaskPtr, VBLUPP userUPP) = 0x4E91;
    #else
        #define InvokeVBLUPP(vblTaskPtr, userUPP)                       CALL_ONE_PARAMETER_UPP((userUPP), uppVBLProcInfo, (vblTaskPtr))
    #endif
#endif
/* support for pre-Carbon UPP routines: NewXXXProc and CallXXXProc */
#define NewVBLProc(userRoutine)                                 NewVBLUPP(userRoutine)
#define CallVBLProc(userRoutine, vblTaskPtr)                    InvokeVBLUPP(vblTaskPtr, userRoutine)
#if CALL_NOT_IN_CARBON
#if CALL_NOT_IN_CARBON
EXTERN_API( QHdrPtr )
GetVBLQHdr                      (void)                                                      THREEWORDINLINE(0x2EBC, 0x0000, 0x0160);
                                                                                            #if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
                                                                                            #pragma parameter __D0 SlotVInstall(__A0, __D0)
                                                                                            #endif
EXTERN_API( OSErr )
SlotVInstall                    (QElemPtr               vblBlockPtr,
                                 short                  theSlot)                            ONEWORDINLINE(0xA06F);
                                                                                            #if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
                                                                                            #pragma parameter __D0 SlotVRemove(__A0, __D0)
                                                                                            #endif
EXTERN_API( OSErr )
SlotVRemove                     (QElemPtr               vblBlockPtr,
                                 short                  theSlot)                            ONEWORDINLINE(0xA070);
                                                                                            #if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
                                                                                            #pragma parameter __D0 AttachVBL(__D0)
                                                                                            #endif
EXTERN_API( OSErr )
AttachVBL                       (short                  theSlot)                            ONEWORDINLINE(0xA071);
                                                                                            #if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
                                                                                            #pragma parameter __D0 DoVBLTask(__D0)
                                                                                            #endif
EXTERN_API( OSErr )
DoVBLTask                       (short                  theSlot)                            ONEWORDINLINE(0xA072);
                                                                                            #if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
                                                                                            #pragma parameter __D0 VInstall(__A0)
                                                                                            #endif
EXTERN_API( OSErr )
VInstall                        (QElemPtr               vblTaskPtr)                         ONEWORDINLINE(0xA033);
                                                                                            #if TARGET_OS_MAC && TARGET_CPU_68K && !TARGET_RT_MAC_CFM
                                                                                            #pragma parameter __D0 VRemove(__A0)
                                                                                            #endif
EXTERN_API( OSErr )
VRemove                         (QElemPtr               vblTaskPtr)                         ONEWORDINLINE(0xA034);
#endif  /* CALL_NOT_IN_CARBON */
#endif  /* CALL_NOT_IN_CARBON */
#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 /* __RETRACE__ */

						