Retired Document
Important: This sample code may not represent best practices for current development. The project may use deprecated symbols and illustrate technologies and techniques that are no longer recommended.
MoreAppleEvents.h
/* |
File: MoreAppleEvents.h |
Contains: Apple Event Manager utilities. |
DRI: George Warner |
Copyright: Copyright (c) 1998-2001 by Apple Computer, Inc., All Rights Reserved. |
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. |
("Apple") in consideration of your agreement to the following terms, and your |
use, installation, modification or redistribution of this Apple software |
constitutes acceptance of these terms. If you do not agree with these terms, |
please do not use, install, modify or redistribute this Apple software. |
In consideration of your agreement to abide by the following terms, and subject |
to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs |
copyrights in this original Apple software (the "Apple Software"), to use, |
reproduce, modify and redistribute the Apple Software, with or without |
modifications, in source and/or binary forms; provided that if you redistribute |
the Apple Software in its entirety and without modifications, you must retain |
this notice and the following text and disclaimers in all such redistributions of |
the Apple Software. Neither the name, trademarks, service marks or logos of |
Apple Computer, Inc. may be used to endorse or promote products derived from the |
Apple Software without specific prior written permission from Apple. Except as |
expressly stated in this notice, no other rights or licenses, express or implied, |
are granted by Apple herein, including but not limited to any patent rights that |
may be infringed by your derivative works or by other works in which the Apple |
Software may be incorporated. |
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO |
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED |
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN |
COMBINATION WITH YOUR PRODUCTS. |
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR |
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION |
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT |
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN |
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Change History (most recent first): |
$Log: MoreAppleEvents.h,v $ |
Revision 1.16 2002/03/07 20:32:14 geowar |
General clean up. |
Added recovery code to MoreAESendEventReturnPString. |
New API: MoreAECreateAEDescFromCFString. |
Revision 1.15 2002/02/19 18:55:16 geowar |
Written by: => DRI: |
Revision 1.14 2002/01/16 19:11:56 geowar |
Added MoreAESendEventReturnAEDesc, MoreAESendEventReturnAEDescList, |
MoreAETellSelfToSetCFStringRefProperty, & MoreAEGetCFStringFromDescriptor routines. |
Revision 1.13 2001/11/07 15:50:54 eskimo1 |
Tidy up headers, add CVS logs, update copyright. |
<12> 21/9/01 Quinn Changes for CWPro7 Mach-O build. |
<11> 8/28/01 gaw CodeBert (error -> pError, theAppleEvent -> pAppleEvent, etc.) |
<10> 15/2/01 Quinn MoreAECreateAppleEventTargetID is not supported for Carbon |
builds because all of its required declarations are defined |
CALL_NOT_IN_CARBON. |
<9> 27/3/00 Quinn Remove MoreAEDeleteItemFromRecord. It's functionality is |
covered by AEDeleteKeyDesc. |
<8> 20/3/00 Quinn Added routines to deal with "missing value". Added |
MoreAECopyDescriptorDataToHandle. Fixed some copy and paste |
errors in the comments. |
<7> 3/9/00 GW Intergrating AppleEvent Helper code |
<6> 6/3/00 Quinn Added a bunch of trivial wrapper routines. George may come |
along and change all these soon, but I needed them for MoreOSL. |
<5> 1/3/00 Quinn Change the signature for AEGetDescData to match the version we |
actually shipped. |
<4> 2/15/99 PCG add AEGetDescDataSize for non-Carbon clients |
<3> 1/29/99 PCG add AEGetDescData |
<2> 11/11/98 PCG fix headers |
<1> 11/10/98 PCG first big re-org at behest of Quinn |
Old Change History (most recent first): |
<4> 10/11/98 Quinn Convert "MorePrefix.h" to "MoreSetup.h". |
<3> 9/9/98 PCG re-work import and export pragmas |
<2> 7/24/98 PCG coddle linker (C++, CFM-68K) |
<1> 6/16/98 PCG initial checkin |
*/ |
#pragma once |
//******************************************************************************** |
// A private conditionals file to setup the build environment for this project. |
#include "MoreSetup.h" |
#if ! MORE_FRAMEWORK_INCLUDES |
//******************************************************************************** |
// System includes |
#include <AERegistry.h> |
#include <AEObjects.h> |
#include <AEPackObject.h> |
#include <EPPC.h> |
#include <Gestalt.h> |
#include <Processes.h> |
#endif |
//******************************************************************************** |
#define kFlagNotSet -1 |
//******************************************************************************** |
#ifdef __cplusplus |
extern "C" { |
#endif |
/******************************************************************************** |
Create and return an AEDesc for the process target with the specified PSN. |
If no PSN is supplied the use the current process |
pAEEventClass ==> The class of the event to be created. |
pAEEventID ==> The ID of the event to be created. |
pAppleEvent ==> Pointer to an AppleEvent where the |
event record will be returned. |
<== The Apple event. |
RESULT CODES |
____________ |
noErr 0 No error |
memFullErr -108 Not enough room in heap zone |
____________ |
*/ |
extern pascal OSErr MoreAECreateProcessTarget (ProcessSerialNumber* pPSN,AEDesc* target); |
/******************************************************************************** |
Create and return an AppleEvent of the given class and ID. The event will be |
targeted at the current process, with an AEAddressDesc of type |
typeProcessSerialNumber. |
pAEEventClass ==> The class of the event to be created. |
pAEEventID ==> The ID of the event to be created. |
pAppleEvent ==> Pointer to an AppleEvent where the |
event record will be returned. |
<== The Apple event. |
RESULT CODES |
____________ |
noErr 0 No error |
memFullErr -108 Not enough room in heap zone |
____________ |
*/ |
extern pascal OSErr MoreAECreateAppleEventSelfTarget( AEEventClass pAEEventClass, |
AEEventID pAEEventID, |
AppleEvent* pAppleEvent ); |
/******************************************************************************** |
Create and return an AppleEvent of the given class and ID. The event will be |
targeted at the process specified by the target type and creator codes, |
with an AEAddressDesc of type typeProcessSerialNumber. |
pType ==> The file type of the process to be found. |
pCreator ==> The creator type of the process to be found. |
pAEEventClass ==> The class of the event to be created. |
pAEEventID ==> The ID of the event to be created. |
pAppleEvent ==> Pointer to an AppleEvent where the |
event record will be returned. |
<== The Apple event. |
RESULT CODES |
____________ |
noErr 0 No error |
memFullErr -108 Not enough room in heap zone |
procNotFound Ð600 No eligible process with specified descriptor |
____________ |
*/ |
extern pascal OSErr MoreAECreateAppleEventSignatureTarget( OSType pType, |
OSType pCreator, |
AEEventClass pAEEventClass, |
AEEventID pAEEventID, |
AppleEvent* pAppleEvent ); |
/******************************************************************************** |
Create and return an AppleEvent of the given class and ID. The event will be |
targeted at the application with the specific creator. |
psnPtr ==> Pointer to the PSN to target the event with. |
pAEEventClass ==> The class of the event to be created. |
pAEEventID ==> The ID of the event to be created. |
pAppleEvent ==> Pointer to an AppleEvent where the |
event record will be returned. |
<== The Apple event. |
RESULT CODES |
____________ |
noErr 0 No error |
memFullErr -108 Not enough room in heap zone |
procNotFound Ð600 No eligible process with specified descriptor |
____________ |
*/ |
extern pascal OSStatus MoreAECreateAppleEventCreatorTarget( |
const AEEventClass pAEEventClass, |
const AEEventID pAEEventID, |
const OSType pCreator, |
AppleEvent* pAppleEvent); |
/******************************************************************************** |
Create and return an AppleEvent of the given class and ID. The event will be |
targeted with the provided PSN. |
psnPtr ==> Pointer to the PSN to target the event with. |
pAEEventClass ==> The class of the event to be created. |
pAEEventID ==> The ID of the event to be created. |
pAppleEvent ==> Pointer to an AppleEvent where the |
event record will be returned. |
<== The Apple event. |
RESULT CODES |
____________ |
noErr 0 No error |
memFullErr -108 Not enough room in heap zone |
procNotFound Ð600 No eligible process with specified descriptor |
____________ |
*/ |
extern pascal OSErr MoreAECreateAppleEventProcessTarget( const ProcessSerialNumberPtr psnPtr, |
AEEventClass pAEEventClass, |
AEEventID pAEEventID, |
AppleEvent* pAppleEvent ); |
/******************************************************************************** |
Create and return an AppleEvent of the given class and ID. The event will be |
targeted with the provided TargetID. |
pTargetID ==> Pointer to the TargetID to target the event with. |
pAEEventClass ==> The class of the event to be created. |
pAEEventID ==> The ID of the event to be created. |
pAppleEvent ==> Pointer to an AppleEvent where the |
event record will be returned. |
<== The Apple event. |
RESULT CODES |
____________ |
noErr 0 No error |
memFullErr -108 Not enough room in heap zone |
procNotFound Ð600 No eligible process with specified descriptor |
____________ |
*/ |
#if CALL_NOT_IN_CARBON |
//******************************************************************************** |
// Addressing Apple events by target has been deprecated in Carbon, |
// so much so that constants like typeTargetID are not available to |
// Carbon applications. So we canÕt support this routine for Carbon |
// development. |
extern pascal OSErr MoreAECreateAppleEventTargetID( const TargetID* pTargetID, |
AEEventClass pAEEventClass, |
AEEventID pAEEventID, |
AppleEvent* pAppleEvent ); |
#endif |
/******************************************************************************** |
Send the provided AppleEvent using the provided idle function. |
Will wait for a reply if an idle function is provided, but no result will be returned. |
pIdleProcUPP ==> The idle function to use when sending the event. |
pAppleEvent ==> The event to be sent. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendEventNoReturnValue( const AEIdleUPP pIdleProcUPP, |
const AppleEvent* pAppleEvent ); |
/******************************************************************************** |
Send the provided AppleEvent using the provided idle function. |
Return the direct object as a AEDesc of pAEDescType |
pIdleProcUPP ==> The idle function to use when sending the event. |
pAppleEvent ==> The event to be sent. |
pDescType ==> The type of value returned by the event. |
pAEDescList <== The value returned by the event. |
RESULT CODES |
____________ |
noErr 0 No error |
paramErr -50 No idle function provided |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendEventReturnAEDesc( |
const AEIdleUPP pIdleProcUPP, |
const AppleEvent *pAppleEvent, |
const DescType pDescType, |
AEDesc *pAEDesc); |
/******************************************************************************** |
Send the provided AppleEvent using the provided idle function. |
Return the direct object as a AEDescList |
pIdleProcUPP ==> The idle function to use when sending the event. |
pAppleEvent ==> The event to be sent. |
pAEDescList <== The value returned by the event. |
RESULT CODES |
____________ |
noErr 0 No error |
paramErr -50 No idle function provided |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendEventReturnAEDescList( |
const AEIdleUPP pIdleProcUPP, |
const AppleEvent *pAppleEvent, |
AEDescList *pAEDescList); |
/******************************************************************************** |
Send the provided AppleEvent using the provided idle function. |
Return data (at pDataPtr) of type pDesiredType |
pIdleProcUPP ==> The idle function to use when sending the event. |
pAppleEvent ==> The event to be sent. |
theValue <== The value returned by the event. |
RESULT CODES |
____________ |
noErr 0 No error |
paramErr -50 No idle function provided |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendEventReturnData( |
const AEIdleUPP pIdleProcUPP, |
const AppleEvent *pAppleEvent, |
DescType pDesiredType, |
DescType* pActualType, |
void* pDataPtr, |
Size pMaximumSize, |
Size *pActualSize); |
/******************************************************************************** |
Send the provided AppleEvent using the provided idle function. |
Return a SInt16 (typeSmallInteger). |
pIdleProcUPP ==> The idle function to use when sending the event. |
pAppleEvent ==> The event to be sent. |
theValue <== The value returned by the event. |
RESULT CODES |
____________ |
noErr 0 No error |
paramErr -50 No idle function provided |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendEventReturnSInt16( |
const AEIdleUPP pIdleProcUPP, |
const AppleEvent* pAppleEvent, |
SInt16* theValue ); |
/******************************************************************************** |
Send the provided AppleEvent using the provided idle function. |
Returns a PString. |
pIdleProcUPP ==> The idle function to use when sending the event. |
pAppleEvent ==> The event to be sent. |
pStr255 <== The value returned by the event. |
RESULT CODES |
____________ |
noErr 0 No error |
paramErr -50 No idle function provided |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendEventReturnPString( |
const AEIdleUPP pIdleProcUPP, |
const AppleEvent* pAppleEvent, |
Str255 pStr255); |
/******************************************************************************** |
Send an AppleEvent of the specified Class & ID to myself using the |
provided idle function. The actual target of the event is the |
pSelection property of the application. |
pEventID ==> The event to be sent. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendToSelfNoReturnValue( |
const AEEventClass pEventClass, |
const AEEventID pEventID); |
/******************************************************************************** |
Send an AppleEvent of the specified Class & ID to myself using the |
provided idle function. Wait for a reply and extract a SInt16 result. |
The actual target of the event is the pSelection property of the |
application. |
pEventID ==> The event to be sent. |
pValue <== Where the return SInt16 will be stored. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAESendToSelfReturnSInt16( |
const AEEventClass pEventClass, |
const AEEventID pEventID, |
SInt16* pValue); |
/******************************************************************************** |
Send a get data (kAEGetData) AppleEvent to myself using the |
provided idle function. Wait for a reply and extract a SInt16 result. |
pEventID ==> The event to be sent. |
pValue <== Where the resulting SInt16 will be stored. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAETellSelfToGetSInt16Property( |
const DescType pPropType, |
SInt16* pValue); |
/******************************************************************************** |
Send a get data (kAEGetData) AppleEvent to myself using the |
provided idle function. Wait for a reply and extract a Str255 result. |
The actual target of the event is the pSelection property of the |
application. |
pEventID ==> The event to be sent. |
pValue <== Where the resulting Str255 will be stored. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAETellSelfToGetStr255Property( |
const DescType pPropType, |
Str255 pValue); |
/******************************************************************************** |
Send a set data (kAESetData) AppleEvent to myself with a SInt16 parameter |
and using the provided idle function. |
pEventID ==> The event to be sent. |
pValue <== Where the resulting SInt16 will be stored. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAETellSelfToSetSInt16Property( |
const DescType pPropType, |
SInt16 pValue); |
/******************************************************************************** |
Send a set data (kAESetData) AppleEvent to myself with a Pascal string |
parameter and using the default idle function. |
pEventID ==> The event to be sent. |
pValue ==> The Str255 to be sent. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAETellSelfToSetStr255Property( |
const DescType pPropType, |
Str255 pValue); |
/******************************************************************************** |
Send a set data (kAESetData) AppleEvent to myself with a CFStringRef |
parameter and using the default idle function. |
pEventID ==> The event to be sent. |
pValue ==> The CFString to be sent. |
RESULT CODES |
____________ |
noErr 0 No error |
and any other error that can be returned by AESend or the handler |
in the application that gets the event. |
____________ |
*/ |
extern pascal OSErr MoreAETellSelfToSetCFStringRefProperty( |
const DescType pPropType, |
const CFStringRef pCFStringRef); |
//******************************************************************************* |
// Appends each of the items in pSourceList to the pDestList. |
extern pascal OSStatus MoreAEAppendListToList(const AEDescList* pSourceList,AEDescList* pDestList); |
//******************************************************************************* |
// This routine takes a result descriptor and an error. |
// If there is a result to add to the reply it makes sure the reply isn't |
// NULL itself then adds the error to the reply depending on the error |
// and the type of result. |
extern pascal OSErr MoreAEMoreAESetReplyErrorNumber (OSErr pOSErr,AppleEvent* pAEReply); |
//******************************************************************************* |
// This routine takes a result descriptor, a reply descriptor and an error. |
// If there is a result to add to the reply it makes sure the reply isn't |
// NULL itself then adds the result to the reply depending on the error |
// and the type of result. |
extern pascal OSErr MoreAEAddResultToReply(const AEDesc* pResult,AEDesc* pAEReply,const OSErr pError); |
// ---------------------------------------------------------------------- |
// Name: MoreAEGotRequiredParams |
// Function: Checks that all parameters defined as 'required' have been read |
// ---------------------------------------------------------------------- |
extern pascal OSErr MoreAEGotRequiredParams(const AppleEvent* pAppleEventPtr); |
/******************************************************************************** |
Takes a reply event checks it for any errors that may have been returned |
by the event handler. A simple function, in that it only returns the error |
number. You can often also extract an error string and three other error |
parameters from a reply event. |
Also see: |
IM:IAC for details about returned error strings. |
AppleScript developer release notes for info on the other error parameters. |
pAEReply ==> The reply event to be checked. |
RESULT CODES |
____________ |
noErr 0 No error |
???? ?? Pretty much any error, depending on what the |
event handler returns for it's errors. |
*/ |
extern pascal OSErr MoreAEGetHandlerError( const AppleEvent* pAEReply ); |
/******************************************************************************** |
Get the class and ID from an AppleEvent. |
pAppleEvent ==> The event to get the class and ID from. |
pAEEventClass <== The event's class. |
pAEEventID <== The event's ID. |
RESULT CODES |
____________ |
noErr 0 No error |
memFullErr -108 Not enough room in heap zone |
errAEDescNotFound -1701 Descriptor record was not found |
errAENotAEDesc -1704 Not a valid descriptor record |
errAEReplyNotArrived -1718 Reply has not yet arrived |
*/ |
extern pascal OSErr MoreAEExtractClassAndID ( const AppleEvent* pAppleEvent, |
AEEventClass* pAEEventClass, |
AEEventID* pAEEventID ); |
/******************************************************************************** |
A very simple idle function. It simply ignors any event it receives, |
returns 30 for the sleep time and nil for the mouse region. |
Your application should supply an idle function that handles any events it |
might receive. This is especially important if your application has any windows. |
Also see: |
IM:IAC for details about idle functions. |
Pending Update Perils technote for more about handling low-level events. |
*/ |
extern pascal Boolean MoreAESimpleIdleFunction( EventRecord* event, |
long* sleepTime, |
RgnHandle* mouseRgn ); |
/******************************************************************************** |
Is the Apple Event Manager present. |
RESULT CODES |
____________ |
true The Apple Event Manager is present |
false It isn't |
*/ |
extern pascal Boolean MoreAEHasAppleEvents(void); |
//******************************************************************************* |
// Did this AppleEvent come from the Finder? |
extern pascal OSErr MoreAEIsSenderFinder (const AppleEvent* pAppleEvent,Boolean* pIsFinder); |
//******************************************************************************* |
// Initialises desc to the null descriptor (typeNull,nil). |
extern pascal void MoreAENullDesc(AEDesc* desc); |
//******************************************************************************* |
// Disposes of desc and initialises it to the null descriptor. |
extern pascal void MoreAEDisposeDesc(AEDesc* desc); |
//******************************************************************************* |
// These routines are only implemented in PreCarbon.o for PowerPC |
// So for 68K we had to write our own versions |
#if TARGET_CPU_68K || !ACCESSOR_CALLS_ARE_FUNCTIONS |
extern pascal Size AEGetDescDataSize( const AEDesc* pAEDesc); |
extern pascal OSErr AEGetDescData( |
const AEDesc* pAEDesc, |
void* pDataPtr, |
Size pMaxSize); |
#endif TARGET_CPU_68K || !ACCESSOR_CALLS_ARE_FUNCTIONS |
/******************************************************************************** |
These are generic routines that are used to extract data of |
different types from descriptor records. |
pAEDesc ==> The descriptor we want the data from |
pDestPtr <== Where we want to store the data from this desc. |
pMaxSize ==> The maxium amount of data we can store. |
pActualSize <== The actual amount of data stored. |
RESULT CODES |
____________ |
noErr 0 No error |
____________ |
*/ |
extern pascal void MoreAEGetRawDataFromDescriptor(const AEDesc* pAEDesc, |
Ptr pDestPtr, |
Size pMaxSize, |
Size* pActualSize); |
extern pascal OSErr MoreAEGetCFStringFromDescriptor(const AEDesc* pAEDesc,CFStringRef* pCFStringRef); |
extern pascal OSErr MoreAEGetPStringFromDescriptor(const AEDesc* pAEDesc,StringPtr pStringPtr); |
extern pascal OSErr MoreAEGetCStringFromDescriptor(const AEDesc* pAEDesc,char* pCharPtr); |
extern pascal OSErr MoreAEGetShortFromDescriptor(const AEDesc* pAEDesc,SInt16* pResult); |
extern pascal OSErr MoreAEGetBooleanFromDescriptor(const AEDesc* pAEDesc,Boolean* pResult); |
extern pascal OSErr MoreAEGetLongFromDescriptor(const AEDesc* pAEDesc,long* pResult); |
extern pascal OSErr MoreAEGetOSTypeFromDescriptor(const AEDesc* pAEDesc,OSType* pResult); |
/******************************************************************************** |
Creates an AEDesc from a CFString. |
pCFStringRef ==> The CFString we want the data from |
pAEDesc <== Where we want to store the AEDesc |
RESULT CODES |
____________ |
noErr 0 No error |
____________ |
*/ |
extern pascal OSErr MoreAECreateAEDescFromCFString(const CFStringRef pCFStringRef,AEDesc* pAEDesc); |
//******************************************************************************* |
// This routine creates a new handle and puts the contents of the desc |
// in that handle. CarbonÕs opaque AEDescÕs means that we need this |
// functionality a lot. |
extern pascal OSStatus MoreAECopyDescriptorDataToHandle(const AEDesc* desc,Handle* descData); |
//******************************************************************************* |
// This routine returns true if and only if desc is the "missing value" value. |
extern pascal Boolean MoreAEIsMissingValue(const AEDesc* desc); |
//******************************************************************************* |
// This routine creates a descriptor that represents the missing value. |
extern pascal OSStatus MoreAECreateMissingValue(AEDesc* desc); |
#ifdef __cplusplus |
} |
#endif |
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