/* Miranda NG: the free IM client for Microsoft* Windows* Copyright (ñ) 2012-17 Miranda NG project (http://miranda-ng.org) Copyright (c) 2000-08 Miranda ICQ/IM project, all portions of this codebase are copyrighted to the people listed in contributors.txt. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef M_DATABASE_H__ #define M_DATABASE_H__ 1 ///////////////////////////////////////////////////////////////////////////////////////// // GENERALLY USEFUL STUFF #if !defined(M_SYSTEM_H__) #include "m_system.h" #endif #if !defined(M_UTILS_H__) #include "m_utils.h" #endif #ifdef _MSC_VER #pragma warning(disable:4201 4204) #endif ///////////////////////////////////////////////////////////////////////////////////////// // database functions // Switches safety settings on or off // newSetting is TRUE initially. // Miranda's database is normally protected against corruption by agressively // flushing data to the disk on writes. If you're doing a lot of writes (eg in // an import plugin) it can sometimes be desirable to switch this feature off to // speed up the process. If you do switch it off, you must remember that crashes // are far more likely to be catastrophic, so switch it back on at the earliest // possible opportunity. // Note that if you're doing a lot of setting writes, the flush is already delayed // so you need not use this service for that purpose. EXTERN_C MIR_CORE_DLL(void) db_set_safety_mode(BOOL bNewMode); // Gets the number of contacts in the database, which does not count the user // Returns the number of contacts. They can be retrieved using contact/findfirst and contact/findnext EXTERN_C MIR_CORE_DLL(int) db_get_contact_count(void); // Removes all settings for the specified module. // hContact is 0 for global settings or matches the concrete contact EXTERN_C MIR_CORE_DLL(int) db_delete_module(MCONTACT hContact, const char *szModuleName); ///////////////////////////////////////////////////////////////////////////////////////// // contact functions // Adds a new contact to the database. New contacts initially have no settings // whatsoever, they must all be added with db/contacts/writesetting. // Returns a handle to the newly created contact on success, or NULL otherwise. // Triggers a db/contact/added event just before it returns. EXTERN_C MIR_CORE_DLL(MCONTACT) db_add_contact(void); // Deletes the contact hContact from the database and all events and settings associated with it. // Returns 0 on success or nonzero if hContact was invalid // Please don't try to delete the user contact (hContact = NULL) // Triggers a db/contact/deleted event just *before* it removes anything // Because all events are deleted, lots of people may end up with invalid event // handles from this operation, which they should be prepared for. EXTERN_C MIR_CORE_DLL(int) db_delete_contact(MCONTACT hContact); // Checks if a given value is a valid contact handle, note that due // to the nature of multiple threading, a valid contact can still become // invalid after a call to this service. // Returns 1 if the contact is a contact, or 0 if the contact is not valid. EXTERN_C MIR_CORE_DLL(int) db_is_contact(MCONTACT hContact); ///////////////////////////////////////////////////////////////////////////////////////// // enumerators // Enumerates the names of all modules that have stored or requested information from the database. // Returns the value returned by the last call to dbmep // This service is only really useful for debugging, in conjunction with db/contact/enumsettings // dbmep should return 0 to continue enumeration, or nonzero to stop. // ofsModuleName is the offset of the module name from the start of the profile // database, and is only useful for really heavyweight debugging // Modules names will be enumerated in no particular order // Writing to the database while module names are being enumerated will cause // unpredictable results in the enumeration, but the write will work. // szModuleName is only guaranteed to be valid for the duration of the callback. // If you want to keep it for longer you must allocation your own storage. typedef int(*DBMODULEENUMPROC)(const char *szModuleName, DWORD ofsModuleName, LPARAM lParam); EXTERN_C MIR_CORE_DLL(int) db_enum_modules(DBMODULEENUMPROC dbmep, const void *param = NULL); // Lists all resident settings EXTERN_C MIR_CORE_DLL(int) db_enum_residents(DBMODULEENUMPROC pFunc, const void *param = NULL); // Lists all the settings a specific modules has stored in the database for a specific contact. // Returns the return value of the last call to pfnEnumProc, or -1 if there are // no settings for that module/contact pair // Writing to or deleting from the database while enumerating will have // unpredictable results for the enumeration, but the write will succeed. // Use db/modules/enum to get a complete list of module names // szSetting is only guaranteed to be valid for the duration of the callback. If // you want to keep it for longer you must allocation your own storage. typedef int (*DBSETTINGENUMPROC)(const char *szSetting, LPARAM lParam); EXTERN_C MIR_CORE_DLL(int) db_enum_settings(MCONTACT hContact, DBSETTINGENUMPROC pfnEnumProc, const char *szModule, const void *param = NULL); ///////////////////////////////////////////////////////////////////////////////////////// // DBVARIANT: used by db/contact/getsetting and db/contact/writesetting #define DBVT_DELETED 0 // this setting just got deleted, no other values are valid #define DBVT_BYTE 1 // bVal and cVal are valid #define DBVT_WORD 2 // wVal and sVal are valid #define DBVT_DWORD 4 // dVal and lVal are valid #define DBVT_ASCIIZ 255 // pszVal is valid #define DBVT_BLOB 254 // cpbVal and pbVal are valid #define DBVT_UTF8 253 // pszVal is valid #define DBVT_WCHAR 252 // pwszVal is valid #define DBVTF_VARIABLELENGTH 0x80 typedef struct { BYTE type; union { BYTE bVal; char cVal; WORD wVal; short sVal; DWORD dVal; long lVal; struct { union { char *pszVal; wchar_t *ptszVal; wchar_t *pwszVal; }; WORD cchVal; //only used for db/contact/getsettingstatic }; struct { WORD cpbVal; BYTE *pbVal; }; }; } DBVARIANT; #define DBEF_SENT 2 // this event was sent by the user. If not set this event was received. #define DBEF_READ 4 // event has been read by the user. It does not need to be processed any more except for history. #define DBEF_RTL 8 // event contains the right-to-left aligned text #define DBEF_UTF 16 // event contains a text in utf-8 #define DBEF_ENCRYPTED 32 // event is encrypted (never reported outside a driver) typedef struct { int cbSize; // size of the structure in bytes char *szModule; // pointer to name of the module that 'owns' this // event, ie the one that is in control of the data format DWORD timestamp; // seconds since 00:00, 01/01/1970. Gives us times until // 2106 unless you use the standard C library which is // signed and can only do until 2038. In GMT. DWORD flags; // the omnipresent flags WORD eventType; // module-defined event type field DWORD cbBlob; // size of pBlob in bytes PBYTE pBlob; // pointer to buffer containing module-defined event data #if defined(__cplusplus) bool __forceinline markedRead() const { return (flags & (DBEF_SENT | DBEF_READ)) != 0; } #endif } DBEVENTINFO; EXTERN_C MIR_CORE_DLL(INT_PTR) db_free(DBVARIANT *dbv); ///////////////////////////////////////////////////////////////////////////////////////// // Database contacts /* Gets the handle of the first contact in the database. This handle can be used with loads of functions. It does not need to be closed. You can specify szProto to find only its contacts Returns a handle to the first contact in the db on success, or NULL if there are no contacts in the db. */ #if defined(__cplusplus) EXTERN_C MIR_CORE_DLL(MCONTACT) db_find_first(const char *szProto = NULL); #else EXTERN_C MIR_CORE_DLL(MCONTACT) db_find_first(const char *szProto); #endif /* Gets the handle of the next contact after hContact in the database. This handle can be used with loads of functions. It does not need to be closed. You can specify szProto to find only its contacts Returns a handle to the contact after hContact in the db on success or NULL if hContact was the last contact in the db or hContact was invalid. */ #if defined(__cplusplus) EXTERN_C MIR_CORE_DLL(MCONTACT) db_find_next(MCONTACT hContact, const char *szProto = NULL); #else EXTERN_C MIR_CORE_DLL(MCONTACT) db_find_next(MCONTACT hContact, const char *szProto); #endif ///////////////////////////////////////////////////////////////////////////////////////// // Database events /* Adds a new event to a contact's event list Returns a handle to the newly added event, or NULL on failure Triggers a db/event/added event just before it returns. Events are sorted chronologically as they are entered, so you cannot guarantee that the new hEvent is the last event in the chain, however if a new event is added that has a timestamp less than 90 seconds *before* the event that should be after it, it will be added afterwards, to allow for protocols that only store times to the nearest minute, and slight delays in transports. There are a few predefined eventTypes below for easier compatibility, but modules are free to define their own, beginning at 2000 DBEVENTINFO.timestamp is in GMT, as returned by time(). There are services db/time/x below with useful stuff for dealing with it. */ #define EVENTTYPE_MESSAGE 0 #define EVENTTYPE_URL 1 #define EVENTTYPE_CONTACTS 2 //v0.1.2.2+ #define EVENTTYPE_ADDED 1000 //v0.1.1.0+: these used to be module- #define EVENTTYPE_AUTHREQUEST 1001 //specific codes, hence the module- #define EVENTTYPE_FILE 1002 //specific limit has been raised to 2000 EXTERN_C MIR_CORE_DLL(MEVENT) db_event_add(MCONTACT hContact, DBEVENTINFO *dbei); /* Gets the number of events in the chain belonging to a contact in the database. Returns the number of events in the chain owned by hContact or -1 if hContact is invalid. They can be retrieved using the db_event_first/last() services. */ EXTERN_C MIR_CORE_DLL(int) db_event_count(MCONTACT hContact); /* Removes a single event from the database hDbEvent should have been returned by db_event_add/first/last/next/prev() Returns 0 on success, or nonzero if hDbEvent was invalid Triggers a db/event/deleted event just *before* the event is deleted */ EXTERN_C MIR_CORE_DLL(int) db_event_delete(MCONTACT hContact, MEVENT hDbEvent); /* Retrieves a handle to the first event in the chain for hContact Returns the handle, or NULL if hContact is invalid or has no events Events in a chain are sorted chronologically automatically */ EXTERN_C MIR_CORE_DLL(MEVENT) db_event_first(MCONTACT hContact); /* Retrieves a handle to the first unread event in the chain for hContact Returns the handle, or NULL if hContact is invalid or all its events have been read Events in a chain are sorted chronologically automatically, but this does not necessarily mean that all events after the first unread are unread too. They should be checked individually with db_event_next() and db_event_get() This service is designed for startup, reloading all the events that remained unread from last time */ EXTERN_C MIR_CORE_DLL(MEVENT) db_event_firstUnread(MCONTACT hContact); /* Retrieves all the information stored in hDbEvent hDbEvent should have been returned by db_event_add/first/last/next/prev() Returns 0 on success or nonzero if hDbEvent is invalid Don't forget to set dbe.cbSize, dbe.pBlob and dbe.cbBlob before calling this service The correct value dbe.cbBlob can be got using db/event/getblobsize If successful, all the fields of dbe are filled. dbe.cbBlob is set to the actual number of bytes retrieved and put in dbe.pBlob If dbe.cbBlob is too small, dbe.pBlob is filled up to the size of dbe.cbBlob and then dbe.cbBlob is set to the required size of data to go in dbe.pBlob On return, dbe.szModule is a pointer to the database module's own internal list of modules. Look but don't touch. */ EXTERN_C MIR_CORE_DLL(int) db_event_get(MEVENT hDbEvent, DBEVENTINFO *dbei); /* Retrieves the space in bytes required to store the blob in hDbEvent hDbEvent should have been returned by db_event_add/first/last/next/prev() Returns the space required in bytes, or -1 if hDbEvent is invalid */ EXTERN_C MIR_CORE_DLL(int) db_event_getBlobSize(MEVENT hDbEvent); /* Retrieves a handle to the contact that owns hDbEvent. hDbEvent should have been returned by db_event_add/first/last/next/prev() NULL is a valid return value, meaning, as usual, the user. Returns INVALID_CONTACT_ID if hDbEvent is invalid, or the handle to the contact on success */ EXTERN_C MIR_CORE_DLL(MCONTACT) db_event_getContact(MEVENT hDbEvent); /* Retrieves a handle to the last event in the chain for hContact Returns the handle, or NULL if hContact is invalid or has no events Events in a chain are sorted chronologically automatically */ EXTERN_C MIR_CORE_DLL(MEVENT) db_event_last(MCONTACT hContact); /* Changes the flags for an event to mark it as read. hDbEvent should have been returned by db_event_add/first/last/next/prev() Returns the entire flag DWORD for the event after the change, or -1 if hDbEvent is invalid. This is the one database write operation that does not trigger an event. Modules should not save flags states for any length of time. */ EXTERN_C MIR_CORE_DLL(int) db_event_markRead(MCONTACT hContact, MEVENT hDbEvent); /* Retrieves a handle to the next event in a chain after hDbEvent Returns the handle, or NULL if hDbEvent is invalid or is the last event Events in a chain are sorted chronologically automatically */ EXTERN_C MIR_CORE_DLL(MEVENT) db_event_next(MCONTACT hContact, MEVENT hDbEvent); /* Retrieves a handle to the previous event in a chain before hDbEvent Returns the handle, or NULL if hDbEvent is invalid or is the first event Events in a chain are sorted chronologically automatically */ EXTERN_C MIR_CORE_DLL(MEVENT) db_event_prev(MCONTACT hContact, MEVENT hDbEvent); ///////////////////////////////////////////////////////////////////////////////////////// // Database settings EXTERN_C MIR_CORE_DLL(INT_PTR) db_get(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv); EXTERN_C MIR_CORE_DLL(int) db_get_b(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, int errorValue = 0); EXTERN_C MIR_CORE_DLL(int) db_get_w(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, int errorValue = 0); EXTERN_C MIR_CORE_DLL(DWORD) db_get_dw(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, DWORD errorValue = 0); EXTERN_C MIR_CORE_DLL(char*) db_get_sa(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting); EXTERN_C MIR_CORE_DLL(wchar_t*) db_get_wsa(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting); EXTERN_C MIR_CORE_DLL(int) db_get_static(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, char *pDest, int cbDest); EXTERN_C MIR_CORE_DLL(int) db_get_static_utf(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, char *pDest, int cbDest); EXTERN_C MIR_CORE_DLL(int) db_get_wstatic(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, wchar_t *pDest, int cbDest); #if defined(__cplusplus) EXTERN_C MIR_CORE_DLL(INT_PTR) db_get_s(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv, const int nType = DBVT_ASCIIZ); #else EXTERN_C MIR_CORE_DLL(INT_PTR) db_get_s(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv, const int nType); #endif EXTERN_C MIR_CORE_DLL(INT_PTR) db_set(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv); EXTERN_C MIR_CORE_DLL(INT_PTR) db_set_b(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, BYTE val); EXTERN_C MIR_CORE_DLL(INT_PTR) db_set_w(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, WORD val); EXTERN_C MIR_CORE_DLL(INT_PTR) db_set_dw(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, DWORD val); EXTERN_C MIR_CORE_DLL(INT_PTR) db_set_s(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, LPCSTR val); EXTERN_C MIR_CORE_DLL(INT_PTR) db_set_ws(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, LPCWSTR val); EXTERN_C MIR_CORE_DLL(INT_PTR) db_set_utf(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, LPCSTR val); EXTERN_C MIR_CORE_DLL(INT_PTR) db_set_blob(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting, void *val, unsigned len); EXTERN_C MIR_CORE_DLL(INT_PTR) db_unset(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting); #if defined(__cplusplus) EXTERN_C MIR_CORE_DLL(BOOL) db_set_resident(LPCSTR szModule, const char *szService, BOOL bEnable = TRUE); #else EXTERN_C MIR_CORE_DLL(BOOL) db_set_resident(LPCSTR szModule, const char *szService, BOOL bEnable); #endif #define db_get_ws(a,b,c,d) db_get_s(a,b,c,d,DBVT_WCHAR) #define db_get_utf(a,b,c,d) db_get_s(a,b,c,d,DBVT_UTF8) ///////////////////////////////////////////////////////////////////////////////////////// // Profile services // Gets the name of the profile currently being used by the database module. // This is the same as the filename of the database // Returns 0 on success or nonzero otherwise EXTERN_C MIR_APP_DLL(int) Profile_GetNameA(size_t cbLen, char *pszDest); EXTERN_C MIR_APP_DLL(int) Profile_GetNameW(size_t cbLen, wchar_t *pwszDest); // Get the path of the base folder where Miranda will store all individual profiles // The returned path does NOT include a trailing backslash. // Essentially this is what has been set in mirandaboot.ini as ProfileDir. // For more options to retrieve profile paths check MS_UTILS_REPLACEVARS // Returns 0 on success or nonzero otherwise EXTERN_C MIR_APP_DLL(int) Profile_GetPathA(size_t cbLen, char *pszDest); EXTERN_C MIR_APP_DLL(int) Profile_GetPathW(size_t cbLen, wchar_t *pwszDest); // Sets the default profile name programmatically // Analog of Database/DefaultProfile in mirandaboot.ini EXTERN_C MIR_APP_DLL(void) Profile_SetDefault(const wchar_t *pwszPath); // Checks the specified profile like dbtool did. // Implemented in the dbchecker plugins, thus it might not exist // wParam = (WPARAM)(wchar_t*)ptszProfileName // lParam = (BOOL)bConversionMode #define MS_DB_CHECKPROFILE "DB/CheckProfile" ///////////////////////////////////////////////////////////////////////////////////////// // Contact services typedef struct { const char *szModule; // pointer to name of the module that wrote the // setting to get const char *szSetting; // pointer to name of the setting to get DBVARIANT *pValue; // pointer to variant to receive the value } DBCONTACTGETSETTING; typedef struct { const char *szModule; // pointer to name of the module that wrote the // setting to get const char *szSetting; // pointer to name of the setting to get DBVARIANT value; // variant containing the value to set } DBCONTACTWRITESETTING; ///////////////////////////////////////////////////////////////////////////////////////// // Event services // Registers the specified database event type, with module, id & description. // When someone needs to retrieve an event's text, a service named Module/GetEventText // will be called. For example, for module named 'foo' and event id 2000 a service // foo/GetEventText2000 should be defined to process this request. That handler should // decode a blob and return the event text in the required format, its prototype is identical // to a call of DbEvent_GetText (see below) // // Returns -1 on error (e.g., event type already registred), 0 on success typedef struct { int cbSize; // structure size in bytes LPSTR module; // event module name int eventType; // event id, unique for this module LPSTR descr; // event type description (i.e. "File Transfer") LPSTR textService; // service name for MS_DB_EVENT_GETTEXT (0.8+, default Module+'/GetEventText'+EvtID) LPSTR iconService; // service name for MS_DB_EVENT_GETICON (0.8+, default Module+'/GetEventIcon'+EvtID) HANDLE eventIcon; // icolib handle to eventicon (0.8+, default 'eventicon_'+Module+EvtID) DWORD flags; // flags, combination of the DETF_* } DBEVENTTYPEDESCR; // constants for default event behaviour #define DETF_HISTORY 1 // show event in history #define DETF_MSGWINDOW 2 // show event in message window #define DETF_NONOTIFY 4 // block event notify (e.g. Popups) EXTERN_C MIR_APP_DLL(int) DbEvent_RegisterType(DBEVENTTYPEDESCR*); ///////////////////////////////////////////////////////////////////////////////////////// // Retrieves the previously registered database event type, by module & id. // Returns DBEVENTTYPEDESCR* or NULL, if an event isn't found. EXTERN_C MIR_APP_DLL(DBEVENTTYPEDESCR*) DbEvent_GetType(const char *szModule, int eventType); ///////////////////////////////////////////////////////////////////////////////////////// // macro to extract MCONTACT from the auth blob __forceinline MCONTACT DbGetAuthEventContact(DBEVENTINFO *dbei) { return (MCONTACT)(*(DWORD*)&dbei->pBlob[sizeof(DWORD)]); } ///////////////////////////////////////////////////////////////////////////////////////// // Retrieves the event's text // * dbei should be the valid database event read via db_event_get() // * codepage is any valid codepage, CP_ACP by default. // // Function returns a pointer to a string in the required format. // This string should be freed by a call of mir_free EXTERN_C MIR_APP_DLL(char*) DbEvent_GetTextA(DBEVENTINFO *dbei, int codepage); EXTERN_C MIR_APP_DLL(wchar_t*) DbEvent_GetTextW(DBEVENTINFO *dbei, int codepage); ///////////////////////////////////////////////////////////////////////////////////////// // Retrieves the event's icon // * use LR_SHARED in flags for shared HICON // dbei should be a valid database event read via db_event_get() // // Function returns HICON (use DestroyIcon to release resources if not LR_SHARED) // // A plugin can register the standard event icon in IcoLib named // 'eventicon_'+Module+EvtID, like eventicon_ICQ2001. Otherwise, to declare an icon // with the non-standard name, you can declare the special service, Module/GetEventIcon, // which will retrieve the custom icon handle (HICON). This service function has the // same parameters MS_DB_EVENT_GETICON does. EXTERN_C MIR_APP_DLL(HICON) DbEvent_GetIcon(DBEVENTINFO *dbei, int flags); ///////////////////////////////////////////////////////////////////////////////////////// // Converts the event's string to wchar_t* depending on the event's format // returns wchar_t* - the converted string // Caller must free the result using mir_free EXTERN_C MIR_APP_DLL(wchar_t*) DbEvent_GetString(DBEVENTINFO *dbei, const char *str); ///////////////////////////////////////////////////////////////////////////////////////// // Database events /* DB/Event/Added event Called when a new event has been added to the event chain for a contact wParam = (MCONTACT)hContact lParam = (LPARAM)(HANDLE)hDbEvent hDbEvent is a valid handle to the event. hContact is a valid handle to the contact to which hDbEvent refers. Since events are sorted chronologically, you cannot guarantee that hDbEvent is at any particular position in the chain. */ #define ME_DB_EVENT_ADDED "DB/Event/Added" /* DB/Event/FilterAdd (NOTE: Added during 0.3.3+ development!) Called **before** a new event is made of a DBEVENTINFO structure, this hook is not SAFE unless you know what you're doing with it, the arguments are passed as-is (with errors, pointer problems, if any) from any arguments passed to db_event_add. The point of this hook is to stop any unwanted database events, to stop an event being added, return 1, to allow the event to pass through return 0. wParam = (MCONTACT)hContact lParam = (LPARAM)&DBEVENTINFO Any changed made to the said DBEVENTINFO are also passed along to the database, therefore it is possible to shape the data, however DO NOT DO THIS. */ #define ME_DB_EVENT_FILTER_ADD "DB/Event/FilterAdd" /* DB/Event/Marked/Read event Called when an event is marked read wParam = (MCONTACT)hContact lParam = (LPARAM)(HANDLE)hDbEvent hDbEvent is a valid handle to the event. hContact is a valid handle to the contact to which hDbEvent refers, and will remain valid. */ #define ME_DB_EVENT_MARKED_READ "DB/Event/Marked/Read" /* DB/Event/Deleted event Called when an event is about to be deleted from the event chain for a contact wParam = (MCONTACT)hContact lParam = (LPARAM)(HANDLE)hDbEvent hDbEvent is a valid handle to the event which is about to be deleted, but it won't be once your hook has returned. hContact is a valid handle to the contact to which hDbEvent refers, and will remain valid. Returning nonzero from your hook will not stop the deletion, but it will, as usual, stop other hooks from being called. */ #define ME_DB_EVENT_DELETED "DB/Event/Deleted" /* DB/Contact/Added event Called when a new contact has been added to the database wParam = (MCONTACT)hContact lParam = 0 hContact is a valid handle to the new contact. Contacts are initially created without any settings, so if you hook this event you will almost certainly also want to hook db/contact/settingchanged as well. */ #define ME_DB_CONTACT_ADDED "DB/Contact/Added" /* DB/Contact/Deleted event Called when an contact is about to be deleted wParam = (MCONTACT)hContact lParam = 0 hContact is a valid handle to the contact which is about to be deleted, but it won't be once your hook has returned. Returning nonzero from your hook will not stop the deletion, but it will, as usual, stop other hooks from being called. Deleting a contact invalidates all events in its chain. */ #define ME_DB_CONTACT_DELETED "DB/Contact/Deleted" /* DB/Contact/SettingChanged event Called when a contact has had one of its settings changed wParam = (MCONTACT)hContact lParam = (LPARAM)(DBCONTACTWRITESETTING*)&dbcws hContact is a valid handle to the contact that has changed. This event will be triggered many times rapidly when a whole bunch of values are set. Modules which hook this should be aware of this fact and quickly return if they are not interested in the value that has been changed. Careful not to get into infinite loops with this event. The structure dbcws is the same one as is passed to the original service, so don't change any of the members. */ #define ME_DB_CONTACT_SETTINGCHANGED "DB/Contact/SettingChanged" ///////////////////////////////////////////////////////////////////////////////////////// // Settings helper functions #ifndef DB_NOHELPERFUNCTIONS /* inlined range tolerate versions */ __inline BYTE DBGetContactSettingRangedByte(MCONTACT hContact, const char *szModule, const char *szSetting, BYTE errorValue, BYTE minValue, BYTE maxValue) { BYTE bVal = db_get_b(hContact, szModule, szSetting, errorValue); return (bVal < minValue || bVal > maxValue) ? errorValue : bVal; } __inline WORD DBGetContactSettingRangedWord(MCONTACT hContact, const char *szModule, const char *szSetting, WORD errorValue, WORD minValue, WORD maxValue) { WORD wVal = db_get_w(hContact, szModule, szSetting, errorValue); return (wVal < minValue || wVal > maxValue) ? errorValue : wVal; } __inline DWORD DBGetContactSettingRangedDword(MCONTACT hContact, const char *szModule, const char *szSetting, DWORD errorValue, DWORD minValue, DWORD maxValue) { DWORD dwVal = db_get_dw(hContact, szModule, szSetting, errorValue); return (dwVal < minValue || dwVal > maxValue) ? errorValue : dwVal; } #endif #endif // M_DATABASE_H__