/* File: PMPluginHeader.h Contains: Mac OS X Printing Manager Raster Definitions. Version: QuickTime 7.3 Copyright: (c) 2007 (c) 1999-2001 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 __MACTYPES__ #include #endif /* API Version is used for plugin object API compatibility check. */ #if PRAGMA_ONCE #pragma once #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 struct PMPlugInAPIVersion { /* API build version. */ /* This is the API version this object was compiled with. */ UInt32 buildVersionMajor; UInt32 buildVersionMinor; /* Base API version this object is upward compatible with. */ /* The object guarantees to be a super-set of said API. */ UInt32 baseVersionMajor; UInt32 baseVersionMinor; }; typedef struct PMPlugInAPIVersion PMPlugInAPIVersion; /* The plugin header interface, and its vtable. */ /* Plugin interface is an address of an object which contains a vtable pointer */ /* as its first member. Every plugin interface (except 'iunknown') must begin */ /* with PMPlugInHeader which must not change. */ typedef struct PMPlugInHeader PMPlugInHeader; struct PMPlugInHeaderInterface { const PMPlugInHeader * vtable; }; typedef struct PMPlugInHeaderInterface PMPlugInHeaderInterface; typedef CALLBACK_API_C( OSStatus , PMPluginRetain )(PMPlugInHeaderInterface * obj); typedef CALLBACK_API_C( OSStatus , PMPluginRelease )(PMPlugInHeaderInterface ** objPtr); typedef CALLBACK_API_C( OSStatus , PMPluginGetAPIVersion )(PMPlugInHeaderInterface *obj, PMPlugInAPIVersion *versionPtr); struct PMPlugInHeader { /* ---- API 'IMMUTABLE' Begin: ---- */ /* Retain an object.*/ PMPluginRetain Retain; /* Release an object. When reference count goes down to zero object*/ /* is deleted. The call clears caller's reference to the object.*/ PMPluginRelease Release; /* GetAPIVersion method is required with all plugin modules*/ /* to be able to get object's API build and compatibility version.*/ /* This version is used for plugin API compatibility check.*/ PMPluginGetAPIVersion GetAPIVersion; }; #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