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692 lines
21 KiB
C
692 lines
21 KiB
C
/*
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File: Scrap.h
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Contains: Scrap Manager Interfaces.
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Version: QuickTime 7.3
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Copyright: (c) 2007 (c) 1985-2001 by Apple Computer, Inc., all rights reserved
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Bugs?: For bug reports, consult the following page on
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the World Wide Web:
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http://developer.apple.com/bugreporter/
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*/
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#ifndef __SCRAP__
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#define __SCRAP__
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#ifndef __MIXEDMODE__
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#include <MixedMode.h>
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#endif
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#ifndef __MACERRORS__
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#include <MacErrors.h>
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#endif
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#ifndef __CFSTRING__
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#include <CFString.h>
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#endif
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#if PRAGMA_ONCE
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#pragma once
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if PRAGMA_IMPORT
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#pragma import on
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#endif
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#if PRAGMA_STRUCT_ALIGN
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#pragma options align=mac68k
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#elif PRAGMA_STRUCT_PACKPUSH
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#pragma pack(push, 2)
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#elif PRAGMA_STRUCT_PACK
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#pragma pack(2)
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#endif
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/*
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________________________________________________________________
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UNIVERSAL SCRAP MANAGER INTERFACES
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________________________________________________________________
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The following interfaces are available when compiling for BOTH
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Carbon AND Mac OS 8.
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________________________________________________________________
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*/
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/*
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While we're in here mucking about, we defined a new type to
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to put some confusion to rest. The old calls, as well as the
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new calls, use the new type. Existing clients should be
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blissfully ignorant.
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*/
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typedef FourCharCode ScrapFlavorType;
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/*
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Newsflash! After 15 years of arduous toil, it's finally possible
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for specially trained typists wielding advanced text editing
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technology to define symbolic names for commonly used scrap
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flavor type constants! Apple triumphs again!
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*/
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enum {
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kScrapFlavorTypePicture = FOUR_CHAR_CODE('PICT'), /* contents of a PicHandle*/
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kScrapFlavorTypeText = FOUR_CHAR_CODE('TEXT'), /* stream of characters*/
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kScrapFlavorTypeTextStyle = FOUR_CHAR_CODE('styl'), /* see TEGetStyleScrapHandle*/
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kScrapFlavorTypeMovie = FOUR_CHAR_CODE('moov'), /* reference to a movie*/
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kScrapFlavorTypeSound = FOUR_CHAR_CODE('snd '), /* see SndRecord and SndPlay*/
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kScrapFlavorTypeUnicode = FOUR_CHAR_CODE('utxt'), /* stream of UTF16 characters*/
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kScrapFlavorTypeUnicodeStyle = FOUR_CHAR_CODE('ustl') /* ATSUI defines; Textension uses*/
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};
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/*
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If you are a Carbon client and you need to run on Mac OS 8,
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you may still need to load and unload the scrap. Under Mac OS
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X, the scrap is held by the pasteboard server instead of in a
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handle in your app's heap, so LoadScrap and UnloadScrap do
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nothing when called under Mac OS X.
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*/
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/*
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* LoadScrap()
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*
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* Availability:
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* Non-Carbon CFM: in InterfaceLib 7.1 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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LoadScrap(void) ONEWORDINLINE(0xA9FB);
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/*
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* UnloadScrap()
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*
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* Availability:
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* Non-Carbon CFM: in InterfaceLib 7.1 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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UnloadScrap(void) ONEWORDINLINE(0xA9FA);
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#if CALL_NOT_IN_CARBON
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/*
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________________________________________________________________
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MAC OS 8 SCRAP MANAGER INTERFACES
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________________________________________________________________
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The following interfaces are available only when compiling for
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plain vanilla Mac OS 8. We didn't add comments to them because
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Inside Mac covers them in detail.
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________________________________________________________________
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*/
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struct ScrapStuff {
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SInt32 scrapSize;
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Handle scrapHandle;
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SInt16 scrapCount;
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SInt16 scrapState;
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StringPtr scrapName;
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};
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typedef struct ScrapStuff ScrapStuff;
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typedef ScrapStuff * PScrapStuff;
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typedef ScrapStuff * ScrapStuffPtr;
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#endif /* CALL_NOT_IN_CARBON */
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#if CALL_NOT_IN_CARBON
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/*
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* InfoScrap()
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*
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* Availability:
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* Non-Carbon CFM: in InterfaceLib 7.1 and later
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* CarbonLib: not available
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* Mac OS X: not available
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*/
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EXTERN_API( ScrapStuffPtr )
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InfoScrap(void) ONEWORDINLINE(0xA9F9);
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/*
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* GetScrap()
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*
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* Availability:
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* Non-Carbon CFM: in InterfaceLib 7.1 and later
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* CarbonLib: not available
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* Mac OS X: not available
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*/
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EXTERN_API( long )
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GetScrap(
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Handle destination,
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ScrapFlavorType flavorType,
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SInt32 * offset) ONEWORDINLINE(0xA9FD);
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/*
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* ZeroScrap()
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*
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* Availability:
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* Non-Carbon CFM: in InterfaceLib 7.1 and later
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* CarbonLib: not available
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* Mac OS X: not available
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*/
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EXTERN_API( OSStatus )
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ZeroScrap(void) ONEWORDINLINE(0xA9FC);
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/*
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* PutScrap()
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*
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* Availability:
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* Non-Carbon CFM: in InterfaceLib 7.1 and later
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* CarbonLib: not available
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* Mac OS X: not available
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*/
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EXTERN_API( OSStatus )
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PutScrap(
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SInt32 sourceBufferByteCount,
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ScrapFlavorType flavorType,
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const void * sourceBuffer) ONEWORDINLINE(0xA9FE);
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/*
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________________________________________________________________
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CARBON SCRAP MANAGER INTERFACES
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________________________________________________________________
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The following interfaces are available only when compiling for
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Carbon.
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________________________________________________________________
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*/
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/*
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When promising a scrap flavor, it's OK if you
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don't yet know how big the flavor data will be.
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In this case, just pass kScrapFlavorSizeUnknown
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for the flavor data size.
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*/
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#endif /* CALL_NOT_IN_CARBON */
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enum {
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kScrapFlavorSizeUnknown = -1
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};
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/*
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kScrapReservedFlavorType is a flavor type which is reserved
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for use by Scrap Manager. If you pass it to Scrap Manager,
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it will be rejected.
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*/
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enum {
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kScrapReservedFlavorType = FOUR_CHAR_CODE('srft')
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};
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/*
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We've added scrap flavor flags ala Drag Manager.
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kScrapFlavorMaskNone means you want none of the flags.
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kScrapFlavorSenderOnlyMask means only the process which
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put the flavor on the scrap can see it. If some other
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process put a flavor with this flag on the scrap,
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your process will never see the flavor, so there's
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no point in testing for this flag.
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kScrapFlavorTranslated means the flavor was translated
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from some other flavor in the scrap by Translation Manager.
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Most callers should not care about this bit.
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*/
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enum {
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kScrapFlavorMaskNone = 0x00000000,
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kScrapFlavorMaskSenderOnly = 0x00000001,
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kScrapFlavorMaskTranslated = 0x00000002
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};
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typedef UInt32 ScrapFlavorFlags;
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/*
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ScrapFlavorInfo describes a single flavor within
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a scrap.
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*/
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struct ScrapFlavorInfo {
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ScrapFlavorType flavorType;
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ScrapFlavorFlags flavorFlags;
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};
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typedef struct ScrapFlavorInfo ScrapFlavorInfo;
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typedef struct OpaqueScrapRef* ScrapRef;
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/*
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kScrapRefNone is guaranteed to be an invalid ScrapRef. This
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is convenient when initializing application variables.
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*/
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#define kScrapRefNone ((ScrapRef)NULL)
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/*
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Defined Apple scrap names for GetScrapByName
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kScrapClipboardScrap traditional clipboard scrap
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kScrapFindScrap compatible with Cocoa's global find scrap
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*/
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#define kScrapClipboardScrap CFSTR("com.apple.scrap.clipboard")
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#define kScrapFindScrap CFSTR("com.apple.scrap.find")
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/* Enumerated options to be passed to GetScrapByName*/
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enum {
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kScrapGetNamedScrap = 0, /* get current named scrap without bumping*/
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kScrapClearNamedScrap = (1L << 0) /* acquire the named scrap, bumping and clearing*/
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};
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/*
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GetScrapByName allows access to an indefinite number of public or private
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scraps. The constant kScrapClipboardScrap refers to the "current" scrap
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we've all come to know and love. kScrapFindScrap allows Carbon apps to
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interact seamlessly with Cocoa's global find scrap. Note that calling:
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GetScrapByName( kScrapClipboardScrap, kScrapGetNamedScrap, &scrap );
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is an exact match to the call:
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GetCurrentScrap( &scrap );
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Additionally, a call to:
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GetScrapByName( kScrapClipboardScrap, kScrapClearNamedScrap, &scrap );
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is a replacement for the sequence:
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ClearCurrentScrap();
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GetCurrentScrap( &scrap );
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You can use this API to generate your own private scraps to use as a high
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level interprocess communication between your main and helper apps. The Java
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naming convention is suggested for your scraps ( ie. com.joeco.scrap.secret ).
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CarbonLib does not support arbitrary named scraps; when calling this API on
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CarbonLib, kScrapClipboardScrap is the only supported value for the name parameter.
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*/
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/*
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* GetScrapByName()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.5 and later
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* Mac OS X: in version 10.1 and later
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*/
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EXTERN_API( OSStatus )
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GetScrapByName(
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CFStringRef name,
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OptionBits options,
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ScrapRef * scrap);
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/*
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GetCurrentScrap obtains a reference to the current scrap.
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The ScrapRef obtained via GetCurrentScrap will become
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invalid and unusable after the scrap is cleared.
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*/
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/*
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* GetCurrentScrap()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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GetCurrentScrap(ScrapRef * scrap);
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/*
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GetScrapFlavorFlags tells you [a] whether the scrap contains
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data for a particular flavor and [b] some things about that
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flavor if it exists. This call never blocks, and is useful
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for deciding whether to enable the Paste item in your Edit
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menu, among other things.
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*/
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/*
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* GetScrapFlavorFlags()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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GetScrapFlavorFlags(
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ScrapRef scrap,
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ScrapFlavorType flavorType,
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ScrapFlavorFlags * flavorFlags);
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/*
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GetScrapFlavorSize gets the size of the data of the specified
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flavor. This function blocks until the specified flavor
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data is available. GetScrapFlavorSize is intended as a prelude
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to allocating memory and calling GetScrapFlavorData.
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*/
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/*
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* GetScrapFlavorSize()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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GetScrapFlavorSize(
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ScrapRef scrap,
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ScrapFlavorType flavorType,
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Size * byteCount);
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/*
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GetScrapFlavorData gets the data from the specified flavor in the
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specified scrap. This function blocks until the specified flavor
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data is available. Specify the maximum size your buffer can contain;
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on output, this function produces the number of bytes that were
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available (even if this is more than you requested).
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*/
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/*
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* GetScrapFlavorData()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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GetScrapFlavorData(
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ScrapRef scrap,
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ScrapFlavorType flavorType,
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Size * byteCount,
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void * destination);
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/*
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ClearCurrentScrap clears the current scrap. Call this
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first when the user requests a Copy or Cut operation --
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even if you maintain a private scrap! You should not wait
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until receiving a suspend event to call ClearCurrentScrap. Call
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it immediately after the user requests a Copy or Cut operation.
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You don't need to put any data on the scrap immediately (although
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it's perfectly fine to do so). You DO need to call GetCurrentScrap
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after ClearCurrentScrap so you'll have a valid ScrapRef to pass
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to other functions.
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*/
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/*
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* ClearCurrentScrap()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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ClearCurrentScrap(void);
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/*
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ClearScrap will clear the scrap passed in and return the bumped
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ScrapRef value. ClearScrap behaves similarly to GetScrapByName
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when called with the kScrapClearNamedScrap option with the
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benefit of not requiring a name in the event one is not available.
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CarbonLib does not support arbitrary named scraps; when calling this
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API on CarbonLib, only clearing the current scrap is supported.
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*/
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/*
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* ClearScrap()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.5 and later
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* Mac OS X: in version 10.1 and later
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*/
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EXTERN_API( OSStatus )
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ClearScrap(ScrapRef * inOutScrap);
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/*
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PutScrapFlavor is a lot like PutScrap, with two differences:
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we added a ScrapRef parameter at the beginning and you can
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"promise" various aspects of a flavor. If you pass a NIL
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data pointer, this is a promise that in the future you
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will provide data for this flavor. Provide the data
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through a subsequent call to PutScrapFlavor, either later
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in the same code flow or during a scrap promise keeper proc.
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If you know how big the data is, you can pass the size as
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well, and this may allow subsequent callers of GetScrapFlavorInfo
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to avoid blocking. If you don't know the size, pass -1.
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If you pass a 0 size, you are telling Scrap Manager not to
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expect any data for this flavor. In this case, the flavor
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data pointer is ignored. NOTE: the last time you can provide
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scrap flavor data is when your scrap promise keeper gets
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called. It is NOT possible to call PutScrapFlavor while
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handling a suspend event; suspend events under Carbon
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simply don't work the way they do under Mac OS 8.
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The method for setting Scrap Manager promises differs from that for Drag Manger promises.
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This chart describes the method for setting scrap promises via PutScrapFlavor().
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dataPtr dataSize result
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pointer value actual data size The data of size dataSize pointed to by dataPtr is added to the scrap.
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0 actual data size A promise for data of size dataSize is placed on the scrap.
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0 -1 A promise for data of an undetermined size is placed on the scrap.
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ignored 0 A flavor with no data expected is placed on the scrap. This is not a promise.
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*/
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/*
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* PutScrapFlavor()
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*
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* Availability:
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* Non-Carbon CFM: not available
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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PutScrapFlavor(
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ScrapRef scrap,
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ScrapFlavorType flavorType,
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ScrapFlavorFlags flavorFlags,
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Size flavorSize,
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const void * flavorData); /* can be NULL */
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/*
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ScrapPromiseKeeper is a function you write which is called by
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Scrap Manager as needed to keep your earlier promise of a
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particular scrap flavor. When your function is called, deliver
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the requested data by calling PutScrapFlavor.
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*/
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typedef CALLBACK_API( OSStatus , ScrapPromiseKeeperProcPtr )(ScrapRef scrap, ScrapFlavorType flavorType, void *userData);
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typedef STACK_UPP_TYPE(ScrapPromiseKeeperProcPtr) ScrapPromiseKeeperUPP;
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/*
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* NewScrapPromiseKeeperUPP()
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*
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* Availability:
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* Non-Carbon CFM: available as macro/inline
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( ScrapPromiseKeeperUPP )
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NewScrapPromiseKeeperUPP(ScrapPromiseKeeperProcPtr userRoutine);
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#if !OPAQUE_UPP_TYPES
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enum { uppScrapPromiseKeeperProcInfo = 0x00000FF0 }; /* pascal 4_bytes Func(4_bytes, 4_bytes, 4_bytes) */
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#ifdef __cplusplus
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inline DEFINE_API_C(ScrapPromiseKeeperUPP) NewScrapPromiseKeeperUPP(ScrapPromiseKeeperProcPtr userRoutine) { return (ScrapPromiseKeeperUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), uppScrapPromiseKeeperProcInfo, GetCurrentArchitecture()); }
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#else
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#define NewScrapPromiseKeeperUPP(userRoutine) (ScrapPromiseKeeperUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), uppScrapPromiseKeeperProcInfo, GetCurrentArchitecture())
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#endif
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#endif
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/*
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* DisposeScrapPromiseKeeperUPP()
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*
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* Availability:
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* Non-Carbon CFM: available as macro/inline
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( void )
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DisposeScrapPromiseKeeperUPP(ScrapPromiseKeeperUPP userUPP);
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#if !OPAQUE_UPP_TYPES
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#ifdef __cplusplus
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inline DEFINE_API_C(void) DisposeScrapPromiseKeeperUPP(ScrapPromiseKeeperUPP userUPP) { DisposeRoutineDescriptor((UniversalProcPtr)userUPP); }
|
|
#else
|
|
#define DisposeScrapPromiseKeeperUPP(userUPP) DisposeRoutineDescriptor(userUPP)
|
|
#endif
|
|
#endif
|
|
|
|
/*
|
|
* InvokeScrapPromiseKeeperUPP()
|
|
*
|
|
* Availability:
|
|
* Non-Carbon CFM: available as macro/inline
|
|
* CarbonLib: in CarbonLib 1.0 and later
|
|
* Mac OS X: in version 10.0 and later
|
|
*/
|
|
EXTERN_API_C( OSStatus )
|
|
InvokeScrapPromiseKeeperUPP(
|
|
ScrapRef scrap,
|
|
ScrapFlavorType flavorType,
|
|
void * userData,
|
|
ScrapPromiseKeeperUPP userUPP);
|
|
#if !OPAQUE_UPP_TYPES
|
|
#ifdef __cplusplus
|
|
inline DEFINE_API_C(OSStatus) InvokeScrapPromiseKeeperUPP(ScrapRef scrap, ScrapFlavorType flavorType, void * userData, ScrapPromiseKeeperUPP userUPP) { return (OSStatus)CALL_THREE_PARAMETER_UPP(userUPP, uppScrapPromiseKeeperProcInfo, scrap, flavorType, userData); }
|
|
#else
|
|
#define InvokeScrapPromiseKeeperUPP(scrap, flavorType, userData, userUPP) (OSStatus)CALL_THREE_PARAMETER_UPP((userUPP), uppScrapPromiseKeeperProcInfo, (scrap), (flavorType), (userData))
|
|
#endif
|
|
#endif
|
|
|
|
#if CALL_NOT_IN_CARBON || OLDROUTINENAMES
|
|
/* support for pre-Carbon UPP routines: New...Proc and Call...Proc */
|
|
#define NewScrapPromiseKeeperProc(userRoutine) NewScrapPromiseKeeperUPP(userRoutine)
|
|
#define CallScrapPromiseKeeperProc(userRoutine, scrap, flavorType, userData) InvokeScrapPromiseKeeperUPP(scrap, flavorType, userData, userRoutine)
|
|
#endif /* CALL_NOT_IN_CARBON */
|
|
|
|
/*
|
|
SetScrapPromiseKeeper associates a ScrapPromiseKeeper with a
|
|
scrap. You can remove a ScrapPromiseKeeper from a scrap by
|
|
passing a NIL ScrapPromiseKeeper to SetScrapPromiseKeeper.
|
|
Pass whatever you like in the last parameter; its value will
|
|
be passed to your ScrapPromiseKeeper, which can do whatever
|
|
it likes with the value. You might choose to pass a pointer
|
|
or handle to some private scrap data which the
|
|
ScrapPromiseKeeper could use in fabricating one or more
|
|
promised flavors.
|
|
*/
|
|
/*
|
|
* SetScrapPromiseKeeper()
|
|
*
|
|
* Availability:
|
|
* Non-Carbon CFM: not available
|
|
* CarbonLib: in CarbonLib 1.0 and later
|
|
* Mac OS X: in version 10.0 and later
|
|
*/
|
|
EXTERN_API( OSStatus )
|
|
SetScrapPromiseKeeper(
|
|
ScrapRef scrap,
|
|
ScrapPromiseKeeperUPP upp,
|
|
const void * userData);
|
|
|
|
|
|
/*
|
|
GetScrapFlavorCount produces the number of
|
|
items which can be obtained by GetScrapFlavorInfoList.
|
|
*/
|
|
|
|
/*
|
|
* GetScrapFlavorCount()
|
|
*
|
|
* Availability:
|
|
* Non-Carbon CFM: not available
|
|
* CarbonLib: in CarbonLib 1.0 and later
|
|
* Mac OS X: in version 10.0 and later
|
|
*/
|
|
EXTERN_API( OSStatus )
|
|
GetScrapFlavorCount(
|
|
ScrapRef scrap,
|
|
UInt32 * infoCount);
|
|
|
|
|
|
/*
|
|
GetScrapFlavorInfoList fills a list (array)
|
|
of items which each describe the corresponding
|
|
flavor in the scrap. It fills no more array
|
|
elements as are specified. On exit, it produces
|
|
the count of elements it filled (which may be
|
|
smaller than the count requested). Yes, YOU
|
|
must provide the memory for the array.
|
|
*/
|
|
|
|
/*
|
|
* GetScrapFlavorInfoList()
|
|
*
|
|
* Availability:
|
|
* Non-Carbon CFM: not available
|
|
* CarbonLib: in CarbonLib 1.0 and later
|
|
* Mac OS X: in version 10.0 and later
|
|
*/
|
|
EXTERN_API( OSStatus )
|
|
GetScrapFlavorInfoList(
|
|
ScrapRef scrap,
|
|
UInt32 * infoCount,
|
|
ScrapFlavorInfo info[]);
|
|
|
|
|
|
|
|
/*
|
|
CallInScrapPromises forces all promises to be kept.
|
|
If your application promises at least one flavor
|
|
AND it does NOT adopt the new event model, you
|
|
should call this function when your application
|
|
is about to quit. If your app promises no flavors,
|
|
there is no need to call this function, and if
|
|
your app adopts the new event model, this function
|
|
will be called automagically for you. It doesn't
|
|
hurt to call this function more than once, though
|
|
promise keepers may be asked to keep promises
|
|
they already tried and failed.
|
|
*/
|
|
|
|
/*
|
|
* CallInScrapPromises()
|
|
*
|
|
* Availability:
|
|
* Non-Carbon CFM: not available
|
|
* CarbonLib: in CarbonLib 1.0 and later
|
|
* Mac OS X: in version 10.0 and later
|
|
*/
|
|
EXTERN_API( OSStatus )
|
|
CallInScrapPromises(void);
|
|
|
|
|
|
|
|
#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 /* __SCRAP__ */
|
|
|