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130 lines
4.7 KiB
C
130 lines
4.7 KiB
C
/*
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File: AppleEventExtensions.h
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Contains: Interfaces to routines in AppleEventExtensions.c. Also contains some
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AppleEvent Transport Format (AETF) information that we would ideally
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not know about. Unfortunately, the AppleEvent Manager was not ready
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to use when we needed to write these routines. By agreement between
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the AppleEvent Manager authors and the System 7.0 decision makers,
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the initial AETF was solidified enough for Finder and the Process Mgr
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to use. This AETF format is to be acceptable in all future revisions
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of the AppleEvent Manager.
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Written by: David Harrison
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Copyright: © 1989-1991 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<2> 10/31/90 DFH Added function prototypes to get rid of warnings.
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<0> 9/20/89 DFH New Today.
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*/
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#ifndef __APPLEEVENTSINTERNAL__
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#include <AppleEventsInternal.h>
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#endif __APPLEEVENTSINTERNAL__
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#ifndef __SYSMISC__
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#include "SysMisc.h"
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#endif __SYSMISC__
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/************************************************************************************
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* AETF information.
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************************************************************************************/
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/* Defines so we can look at AppleEvents format directly */
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#define aeSignature 'aevt'
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#define myAEMajorVersion 1
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#define myAEMinorVersion 1
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/* Structure that should be in {CIncludes} */
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typedef struct AETFDescriptorList {
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AETFDescriptor aeID; /* = aeListParamType */
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long count;
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long hdrLength;
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} AETFDescriptorList;
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/* Number of bytes in AETFDescriptorList that need to be accounted for in the
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* AETFDescriptor's dataLength field.
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*/
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#define LISTEXTRA (sizeof(AETFDescriptorList) - sizeof(AETFDescriptor))
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/************************************************************************************
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* Structure of some AppleEvent messages we send.
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*
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* NOTE: Structures can not be used to look at messages we *receive*, since the message
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* format is flexible. We must parse messages dynamically.
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************************************************************************************/
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/* Message format of saeOpenDocumentMsgID and saePrintDocumentMsgID we send */
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typedef struct AppleEventListParameter {
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KeyWord listKey;
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AETFDescriptorList list;
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} AppleEventListParameter;
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typedef struct AppleEventDocMsg {
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AETFHeader messageHeader;
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KeyWord metaDataMark;
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AppleEventListParameter listParam;
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} AppleEventDocMsg;
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/* Message format for saeAnswer we send */
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typedef struct MyAppleEventReply {
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AppleEventReply basicReply;
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AETFParameter processHdr;
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ProcessSerialNumber process;
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} MyAppleEventReply;
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/************************************************************************************
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* Utility macros.
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************************************************************************************/
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/* SetAppleEvent. Make a HighLevelEventRecord suitable for AppleEvents. */
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#define SetAppleEvent(aEvtCode, theEvent) \
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{ \
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(theEvent)->mClass = standardAppleEventMsgClass; \
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(theEvent)->mID = aEvtCode; \
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(theEvent)->reserved1 = 0; \
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(theEvent)->reserved2 = 0; \
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}
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/* GenericAEMessage. Initializes the fixed part of an AppleEvent message buffer. */
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#define GenericAEMessage(pMsg) \
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{ \
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(pMsg)->signature = aeSignature; \
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(pMsg)->majorVersion = myAEMajorVersion; \
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(pMsg)->minorVersion = myAEMinorVersion; \
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}
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/* SetAEParmHeader. Set up an AETFDescriptor header. */
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#define SetAEParmHeader(pParm, keyValue, type, size) \
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{ \
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(pParm)->key = keyValue; \
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(pParm)->descriptor.dataType = type; \
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(pParm)->descriptor.dataLength = size; \
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}
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/************************************************************************************
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* Utility routines.
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************************************************************************************/
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void TranslateAppleEvent(MFmsgBlkPtr, OSErr *);
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AETFParameter * FindKeywordParameter(AETFHeader *, unsigned long, unsigned long);
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void NextListParam(AETFDescriptor **);
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void ExamineDocList(AETFHeader *, unsigned long, AETFDescriptor *, short *);
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OSErr FileIDToAppFile(AETFDescriptor *, AppFile *, short *, long *);
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AppParmRecHdl NewAppParmHandle(Size);
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void NextAppFile(AppFile **);
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unsigned long SizeOfThisAppFile(AppFile *);
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OSErr AppFileAndDocList(AppFile *, unsigned long *, Handle);
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void HandleSystemMessage(MFmsgBlkPtr, OSErr *);
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OSErr SendSystemQuit(PEntryPtr);
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OSErr HandleSystemQuit(MFmsgBlkPtr);
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OSErr SendGenericInstruction(short, MFmsgBlkPtr);
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OSErr SendFileInstruction(short, MFmsgBlkPtr);
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OSErr SendInstructions(EventListHdl, MFmsgBlkPtr);
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void postResult(MFmsgBlkPtr, OSErr, ProcessSerialNumberPtr);
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void ContinueQuitAll(void);
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void CancelQuitAll(ProcessSerialNumberPtr);
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