/* * DDEML library * * Copyright 1997 Alexandre Julliard * Copyright 1997 Len White * Copyright 1999 Keith Matthews */ /* Only empty stubs for now */ #include #include #include "winbase.h" #include "winuser.h" #include "ddeml.h" #include "winerror.h" #include "heap.h" #include "shm_semaph.h" #include "debugtools.h" #include "tchar.h" #include "winnt.h" DEFAULT_DEBUG_CHANNEL(ddeml) /* Has defined in atom.c file. */ #define MAX_ATOM_LEN 255 /* Maximum buffer size ( including the '\0' ). */ #define MAX_BUFFER_LEN (MAX_ATOM_LEN + 1) /* typedef struct { DWORD nLength; LPVOID lpSecurityDescriptor; BOOL bInheritHandle; } SECURITY_ATTRIBUTES; */ /* This is a simple list to keep track of the strings created * by DdeCreateStringHandle. The list is used to free * the strings whenever DdeUninitialize is called. * This mechanism is not complete and does not handle multiple instances. * Most of the DDE API use a DWORD parameter indicating which instance * of a given program is calling them. The API are supposed to * associate the data to the instance that created it. */ typedef struct tagHSZNode HSZNode; struct tagHSZNode { HSZNode* next; HSZ hsz; }; typedef struct tagServiceNode ServiceNode; struct tagServiceNode { ServiceNode* next; HSZ hsz; BOOL16 FilterOn; }; typedef struct DDE_HANDLE_ENTRY { BOOL16 Monitor; /* have these two as full Booleans cos they'll be tested frequently */ BOOL16 Client_only; /* bit wasteful of space but it will be faster */ BOOL16 Unicode; /* Flag to indicate Win32 API used to initialise */ BOOL16 Win16; /* flag to indicate Win16 API used to initialize */ DWORD Instance_id; /* needed to track monitor usage */ struct DDE_HANDLE_ENTRY *Next_Entry; HSZNode *Node_list; PFNCALLBACK CallBack; DWORD CBF_Flags; DWORD Monitor_flags; UINT Txn_count; /* count transactions open to simplify closure */ DWORD Last_Error; ServiceNode* ServiceNames; } DDE_HANDLE_ENTRY; static DDE_HANDLE_ENTRY *DDE_Handle_Table_Base = NULL; static DWORD DDE_Max_Assigned_Instance = 0; /* OK for present, may have to worry about wrap-around later */ static const char inst_string[]= "DDEMaxInstance"; static LPCWSTR DDEInstanceAccess = (LPCWSTR)&inst_string; static const char handle_string[] = "DDEHandleAccess"; static LPCWSTR DDEHandleAccess = (LPCWSTR)&handle_string; static HANDLE inst_count_mutex = 0; static HANDLE handle_mutex = 0; DDE_HANDLE_ENTRY *this_instance; SECURITY_ATTRIBUTES *s_att= NULL; DWORD err_no = 0; DWORD prev_err = 0; DDE_HANDLE_ENTRY *reference_inst; #define TRUE 1 #define FALSE 0 /****************************************************************************** * RemoveHSZNodes (INTERNAL) * * Remove a node from the list of HSZ nodes. * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * 1.1 Mar 1999 Keith Matthews Added multiple instance handling * */ static void RemoveHSZNode( HSZ hsz ) { HSZNode* pPrev = NULL; HSZNode* pCurrent = NULL; /* Set the current node at the start of the list. */ pCurrent = reference_inst->Node_list; /* While we have more nodes. */ while( pCurrent != NULL ) { /* If we found the node we were looking for. */ if( pCurrent->hsz == hsz ) { /* Remove the node. */ /* If the first node in the list is to to be removed. * Set the global list pointer to the next node. */ if( pCurrent == reference_inst->Node_list ) { reference_inst->Node_list = pCurrent->next; } /* Just fix the pointers has to skip the current * node so we can delete it. */ else { pPrev->next = pCurrent->next; } /* Destroy this node. */ free( pCurrent ); break; } /* Save the previous node pointer. */ pPrev = pCurrent; /* Move on to the next node. */ pCurrent = pCurrent->next; } } /****************************************************************************** * FreeAndRemoveHSZNodes (INTERNAL) * * Frees up all the strings still allocated in the list and * remove all the nodes from the list of HSZ nodes. * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * 1.1 Mar 1999 Keith Matthews Added multiple instance handling * */ static void FreeAndRemoveHSZNodes( DWORD idInst ) { /* Free any strings created in this instance. */ while( reference_inst->Node_list != NULL ) { DdeFreeStringHandle( idInst, reference_inst->Node_list->hsz ); } } /****************************************************************************** * InsertHSZNode (INTERNAL) * * Insert a node to the head of the list. * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * 1.1 Mar 1999 Keith Matthews Added instance handling * 1.2 Jun 1999 Keith Matthews Added Usage count handling * */ static void InsertHSZNode( HSZ hsz ) { if( hsz != 0 ) { HSZNode* pNew = NULL; /* Create a new node for this HSZ. */ pNew = (HSZNode*) malloc( sizeof( HSZNode ) ); if( pNew != NULL ) { /* Set the handle value. */ pNew->hsz = hsz; /* Attach the node to the head of the list. i.e most recently added is first */ pNew->next = reference_inst->Node_list; /* The new node is now at the head of the list * so set the global list pointer to it. */ reference_inst->Node_list = pNew; TRACE("HSZ node list entry added\n"); } } } /***************************************************************************** * Find_Instance_Entry * * generic routine to return a pointer to the relevant DDE_HANDLE_ENTRY * for an instance Id, or NULL if the entry does not exist * * ASSUMES the mutex protecting the handle entry list is reserved before calling * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 March 1999 Keith Matthews 1st implementation */ DDE_HANDLE_ENTRY *Find_Instance_Entry (DWORD InstId) { reference_inst = DDE_Handle_Table_Base; while ( reference_inst != NULL ) { if ( reference_inst->Instance_id == InstId ) { TRACE("Instance entry found\n"); return reference_inst; } reference_inst = reference_inst->Next_Entry; } TRACE("Instance entry missing\n"); return NULL; } /***************************************************************************** * Find_Service_Name * * generic routine to return a pointer to the relevant ServiceNode * for a given service name, or NULL if the entry does not exist * * ASSUMES the mutex protecting the handle entry list is reserved before calling * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 May 1999 Keith Matthews 1st implementation */ ServiceNode *Find_Service_Name (HSZ Service_Name, DDE_HANDLE_ENTRY* this_instance) { ServiceNode * reference_name= this_instance->ServiceNames; while ( reference_name != NULL ) { if ( reference_name->hsz == Service_Name ) { TRACE("Service Name found\n"); return reference_name; } reference_name = reference_name->next; } TRACE("Service name missing\n"); return NULL; } /****************************************************************************** * Release_reserved_mutex * * generic routine to release a reserved mutex * * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Jan 1999 Keith Matthews Initial version * 1.1 Mar 1999 Keith Matthews Corrected Heap handling. Corrected re-initialisation handling * */ static DWORD Release_reserved_mutex (HANDLE mutex, LPSTR mutex_name, BOOL release_handle_m, BOOL release_this_i ) { ReleaseMutex(mutex); if ( (err_no=GetLastError()) != 0 ) { ERR("ReleaseMutex failed - %s mutex %li\n",mutex_name,err_no); HeapFree(SystemHeap, 0, this_instance); if ( release_handle_m ) { ReleaseMutex(handle_mutex); } return DMLERR_SYS_ERROR; } if ( release_this_i ) { HeapFree(SystemHeap, 0, this_instance); } return DMLERR_NO_ERROR; } /****************************************************************************** * IncrementInstanceId * * generic routine to increment the max instance Id and allocate a new application instance * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Jan 1999 Keith Matthews Initial version * */ DWORD IncrementInstanceId() { SECURITY_ATTRIBUTES s_attrib; /* Need to set up Mutex in case it is not already present */ /* increment handle count & get value */ if ( !inst_count_mutex ) { s_attrib.bInheritHandle = TRUE; s_attrib.lpSecurityDescriptor = NULL; s_attrib.nLength = sizeof(s_attrib); inst_count_mutex = CreateMutexW(&s_attrib,1,DDEInstanceAccess); /* 1st time through */ } else { WaitForSingleObject(inst_count_mutex,1000); /* subsequent calls */ /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ } if ( (err_no=GetLastError()) != 0 ) { ERR("CreateMutex failed - inst_count %li\n",err_no); err_no=Release_reserved_mutex (handle_mutex,"handle_mutex",0,1); return DMLERR_SYS_ERROR; } DDE_Max_Assigned_Instance++; this_instance->Instance_id = DDE_Max_Assigned_Instance; TRACE("New instance id %ld allocated\n",DDE_Max_Assigned_Instance); if (Release_reserved_mutex(inst_count_mutex,"instance_count",1,0)) return DMLERR_SYS_ERROR; return DMLERR_NO_ERROR; } /****************************************************************************** * FindNotifyMonitorCallbacks * * Routine to find instances that need to be notified via their callback * of some event they are monitoring * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 May 1999 Keith Matthews Initial Version * */ void FindNotifyMonitorCallbacks(DWORD ThisInstance, DWORD DdeEvent ) { DDE_HANDLE_ENTRY *InstanceHandle; InstanceHandle = DDE_Handle_Table_Base; while ( InstanceHandle != NULL ) { if ( (InstanceHandle->Monitor ) && InstanceHandle->Instance_id == ThisInstance ) { /* Found an instance registered as monitor and is not ourselves * use callback to notify where appropriate */ } InstanceHandle = InstanceHandle->Next_Entry; } } /****************************************************************************** * DdeReserveAtom * * Routine to make an extra Add on an atom to reserve it a bit longer * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Jun 1999 Keith Matthews Initial Version * */ void DdeReserveAtom( DDE_HANDLE_ENTRY * reference_inst,HSZ hsz) { CHAR SNameBuffer[MAX_BUFFER_LEN]; UINT rcode; if ( reference_inst->Unicode) { rcode=GlobalGetAtomNameW(hsz,(LPWSTR)&SNameBuffer,MAX_ATOM_LEN); GlobalAddAtomW((LPWSTR)SNameBuffer); } else { rcode=GlobalGetAtomNameA(hsz,SNameBuffer,MAX_ATOM_LEN); GlobalAddAtomA(SNameBuffer); } } /****************************************************************************** * DdeReleaseAtom * * Routine to make a delete on an atom to release it a bit sooner * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Jun 1999 Keith Matthews Initial Version * */ void DdeReleaseAtom( DDE_HANDLE_ENTRY * reference_inst,HSZ hsz) { CHAR SNameBuffer[MAX_BUFFER_LEN]; UINT rcode; if ( reference_inst->Unicode) { rcode=GlobalGetAtomNameW(hsz,(LPWSTR)&SNameBuffer,MAX_ATOM_LEN); GlobalAddAtomW((LPWSTR)SNameBuffer); } else { rcode=GlobalGetAtomNameA(hsz,SNameBuffer,MAX_ATOM_LEN); GlobalAddAtomA(SNameBuffer); } } /****************************************************************************** * DdeInitialize16 (DDEML.2) */ UINT16 WINAPI DdeInitialize16( LPDWORD pidInst, PFNCALLBACK16 pfnCallback, DWORD afCmd, DWORD ulRes) { TRACE("DdeInitialize16 called - calling DdeInitializeA\n"); return (UINT16)DdeInitializeA(pidInst,(PFNCALLBACK)pfnCallback, afCmd, ulRes); } /****************************************************************************** * DdeInitializeA (USER32.106) */ UINT WINAPI DdeInitializeA( LPDWORD pidInst, PFNCALLBACK pfnCallback, DWORD afCmd, DWORD ulRes ) { TRACE("DdeInitializeA called - calling DdeInitializeW\n"); return DdeInitializeW(pidInst,pfnCallback,afCmd,ulRes); } /****************************************************************************** * DdeInitializeW [USER32.107] * Registers an application with the DDEML * * PARAMS * pidInst [I] Pointer to instance identifier * pfnCallback [I] Pointer to callback function * afCmd [I] Set of command and filter flags * ulRes [I] Reserved * * RETURNS * Success: DMLERR_NO_ERROR * Failure: DMLERR_DLL_USAGE, DMLERR_INVALIDPARAMETER, DMLERR_SYS_ERROR * ****************************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Pre 1998 Alexandre/Len Initial Stub * 1.1 Jan 1999 Keith Matthews Initial (near-)complete version * 1.2 Mar 1999 Keith Matthews Corrected Heap handling, CreateMutex failure handling * */ UINT WINAPI DdeInitializeW( LPDWORD pidInst, PFNCALLBACK pfnCallback, DWORD afCmd, DWORD ulRes ) { /* probably not really capable of handling mutliple processes, but should handle * multiple instances within one process */ SECURITY_ATTRIBUTES s_attrib; s_att = &s_attrib; if( ulRes ) { ERR("Reserved value not zero? What does this mean?\n"); FIXME("(%p,%p,0x%lx,%ld): stub\n", pidInst, pfnCallback, afCmd,ulRes); /* trap this and no more until we know more */ return DMLERR_NO_ERROR; } if (!pfnCallback ) { /* this one may be wrong - MS dll seems to accept the condition, leave this until we find out more !! */ /* can't set up the instance with nothing to act as a callback */ TRACE("No callback provided\n"); return DMLERR_INVALIDPARAMETER; /* might be DMLERR_DLL_USAGE */ } /* grab enough heap for one control struct - not really necessary for re-initialise * but allows us to use same validation routines */ this_instance= (DDE_HANDLE_ENTRY*)HeapAlloc( SystemHeap, 0, sizeof(DDE_HANDLE_ENTRY) ); if ( this_instance == NULL ) { /* catastrophe !! warn user & abort */ ERR("Instance create failed - out of memory\n"); return DMLERR_SYS_ERROR; } this_instance->Next_Entry = NULL; this_instance->Monitor=(afCmd|APPCLASS_MONITOR); /* messy bit, spec implies that 'Client Only' can be set in 2 different ways, catch 1 here */ this_instance->Client_only=afCmd&APPCMD_CLIENTONLY; this_instance->Instance_id = *pidInst; /* May need to add calling proc Id */ this_instance->CallBack=*pfnCallback; this_instance->Txn_count=0; this_instance->Unicode = TRUE; this_instance->Win16 = FALSE; this_instance->Node_list = NULL; /* node will be added later */ this_instance->Monitor_flags = afCmd & MF_MASK; this_instance->ServiceNames = NULL; /* isolate CBF flags in one go, expect this will go the way of all attempts to be clever !! */ this_instance->CBF_Flags=afCmd^((afCmd&MF_MASK)|((afCmd&APPCMD_MASK)|(afCmd&APPCLASS_MASK))); if ( ! this_instance->Client_only ) { /* Check for other way of setting Client-only !! */ this_instance->Client_only=(this_instance->CBF_Flags&CBF_FAIL_ALLSVRXACTIONS) ==CBF_FAIL_ALLSVRXACTIONS; } TRACE("instance created - checking validity \n"); if( *pidInst == 0 ) { /* Initialisation of new Instance Identifier */ TRACE("new instance, callback %p flags %lX\n",pfnCallback,afCmd); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! can return TRUE since effect is the same */ /* Need to set up Mutex in case it is not already present */ s_att->bInheritHandle = TRUE; s_att->lpSecurityDescriptor = NULL; s_att->nLength = sizeof(s_att); handle_mutex = CreateMutexW(s_att,1,DDEHandleAccess); if ( (err_no=GetLastError()) != 0 ) { ERR("CreateMutex failed - handle list %li\n",err_no); HeapFree(SystemHeap, 0, this_instance); return DMLERR_SYS_ERROR; } } else { WaitForSingleObject(handle_mutex,1000); if ( (err_no=GetLastError()) != 0 ) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return DMLERR_SYS_ERROR; } } TRACE("Handle Mutex created/reserved\n"); if (DDE_Handle_Table_Base == NULL ) { /* can't be another instance in this case, assign to the base pointer */ DDE_Handle_Table_Base= this_instance; /* since first must force filter of XTYP_CONNECT and XTYP_WILDCONNECT for * present * ------------------------------- NOTE NOTE NOTE -------------------------- * * the manual is not clear if this condition * applies to the first call to DdeInitialize from an application, or the * first call for a given callback !!! */ this_instance->CBF_Flags=this_instance->CBF_Flags|APPCMD_FILTERINITS; TRACE("First application instance detected OK\n"); /* allocate new instance ID */ if ((err_no = IncrementInstanceId()) ) return err_no; } else { /* really need to chain the new one in to the latest here, but after checking conditions * such as trying to start a conversation from an application trying to monitor */ reference_inst = DDE_Handle_Table_Base; TRACE("Subsequent application instance - starting checks\n"); while ( reference_inst->Next_Entry != NULL ) { /* * This set of tests will work if application uses same instance Id * at application level once allocated - which is what manual implies * should happen. If someone tries to be * clever (lazy ?) it will fail to pick up that later calls are for * the same application - should we trust them ? */ if ( this_instance->Instance_id == reference_inst->Instance_id) { /* Check 1 - must be same Client-only state */ if ( this_instance->Client_only != reference_inst->Client_only) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_DLL_USAGE; } /* Check 2 - cannot use 'Monitor' with any non-monitor modes */ if ( this_instance->Monitor != reference_inst->Monitor) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_INVALIDPARAMETER; } /* Check 3 - must supply different callback address */ if ( this_instance->CallBack == reference_inst->CallBack) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_DLL_USAGE; } } reference_inst = reference_inst->Next_Entry; } /* All cleared, add to chain */ TRACE("Application Instance checks finished\n"); if ((err_no = IncrementInstanceId())) return err_no; if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,0)) return DMLERR_SYS_ERROR; reference_inst->Next_Entry = this_instance; } *pidInst = this_instance->Instance_id; TRACE("New application instance processing finished OK\n"); } else { /* Reinitialisation situation --- FIX */ TRACE("reinitialisation of (%p,%p,0x%lx,%ld): stub\n",pidInst,pfnCallback,afCmd,ulRes); WaitForSingleObject(handle_mutex,1000); if ( (err_no=GetLastError()) != 0 ) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); HeapFree(SystemHeap, 0, this_instance); return DMLERR_SYS_ERROR; } if (DDE_Handle_Table_Base == NULL ) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_DLL_USAGE; } HeapFree(SystemHeap, 0, this_instance); /* finished - release heap space used as work store */ /* can't reinitialise if we have initialised nothing !! */ reference_inst = DDE_Handle_Table_Base; /* must first check if we have been given a valid instance to re-initialise !! how do we do that ? */ /* * MS allows initialisation without specifying a callback, should we allow addition of the * callback by a later call to initialise ? - if so this lot will have to change */ while ( reference_inst->Next_Entry != NULL ) { if ( *pidInst == reference_inst->Instance_id && pfnCallback == reference_inst->CallBack ) { /* Check 1 - cannot change client-only mode if set via APPCMD_CLIENTONLY */ if ( reference_inst->Client_only ) { if ((reference_inst->CBF_Flags & CBF_FAIL_ALLSVRXACTIONS) != CBF_FAIL_ALLSVRXACTIONS) { /* i.e. Was set to Client-only and through APPCMD_CLIENTONLY */ if ( ! ( afCmd & APPCMD_CLIENTONLY)) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_DLL_USAGE; } } } /* Check 2 - cannot change monitor modes */ if ( this_instance->Monitor != reference_inst->Monitor) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_DLL_USAGE; } /* Check 3 - trying to set Client-only via APPCMD when not set so previously */ if (( afCmd&APPCMD_CLIENTONLY) && ! reference_inst->Client_only ) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_DLL_USAGE; } break; } reference_inst = reference_inst->Next_Entry; } if ( reference_inst->Next_Entry == NULL ) { /* Crazy situation - trying to re-initialize something that has not beeen initialized !! * * Manual does not say what we do, cannot return DMLERR_NOT_INITIALIZED so what ? */ if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; return DMLERR_INVALIDPARAMETER; } /* All checked - change relevant flags */ reference_inst->CBF_Flags = this_instance->CBF_Flags; reference_inst->Client_only = this_instance->Client_only; reference_inst->Monitor_flags = this_instance->Monitor_flags; if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR; } return DMLERR_NO_ERROR; } /***************************************************************** * DdeUninitialize16 (DDEML.3) */ BOOL16 WINAPI DdeUninitialize16( DWORD idInst ) { FIXME(" stub calling DdeUninitialize\n"); return (BOOL16)DdeUninitialize( idInst ); } /***************************************************************** * DdeUninitialize [USER32.119] Frees DDEML resources * * PARAMS * idInst [I] Instance identifier * * RETURNS * Success: TRUE * Failure: FALSE */ BOOL WINAPI DdeUninitialize( DWORD idInst ) { /* Stage one - check if we have a handle for this instance */ SECURITY_ATTRIBUTES s_attrib; s_att = &s_attrib; if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! can return TRUE since effect is the same */ return TRUE; } WaitForSingleObject(handle_mutex,1000); if ( (err_no=GetLastError()) != 0 ) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return DMLERR_SYS_ERROR; } TRACE("Handle Mutex created/reserved\n"); /* First check instance */ this_instance = Find_Instance_Entry(idInst); if ( this_instance == NULL ) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return FALSE; /* * Needs something here to record NOT_INITIALIZED ready for DdeGetLastError */ return FALSE; } FIXME("(%ld): partial stub\n", idInst); /* FIXME ++++++++++++++++++++++++++++++++++++++++++ * Needs to de-register all service names * */ /* Free the nodes that were not freed by this instance * and remove the nodes from the list of HSZ nodes. */ FreeAndRemoveHSZNodes( idInst ); /* OK now delete the instance handle itself */ if ( DDE_Handle_Table_Base == this_instance ) { /* special case - the first/only entry */ DDE_Handle_Table_Base = this_instance->Next_Entry; } else { /* general case */ reference_inst->Next_Entry = DDE_Handle_Table_Base; while ( reference_inst->Next_Entry != this_instance ) { reference_inst = this_instance->Next_Entry; } reference_inst->Next_Entry = this_instance->Next_Entry; } /* release the mutex and the heap entry */ if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,TRUE)) { /* should record something here, but nothing left to hang it from !! */ return FALSE; } return TRUE; } /***************************************************************** * DdeConnectList16 [DDEML.4] */ HCONVLIST WINAPI DdeConnectList16( DWORD idInst, HSZ hszService, HSZ hszTopic, HCONVLIST hConvList, LPCONVCONTEXT16 pCC ) { return DdeConnectList(idInst, hszService, hszTopic, hConvList, (LPCONVCONTEXT)pCC); } /****************************************************************************** * DdeConnectList [USER32.93] Establishes conversation with DDE servers * * PARAMS * idInst [I] Instance identifier * hszService [I] Handle to service name string * hszTopic [I] Handle to topic name string * hConvList [I] Handle to conversation list * pCC [I] Pointer to structure with context data * * RETURNS * Success: Handle to new conversation list * Failure: 0 */ HCONVLIST WINAPI DdeConnectList( DWORD idInst, HSZ hszService, HSZ hszTopic, HCONVLIST hConvList, LPCONVCONTEXT pCC ) { FIXME("(%ld,%ld,%ld,%ld,%p): stub\n", idInst, hszService, hszTopic, hConvList,pCC); return 1; } /***************************************************************** * DdeQueryNextServer16 [DDEML.5] */ HCONV WINAPI DdeQueryNextServer16( HCONVLIST hConvList, HCONV hConvPrev ) { return DdeQueryNextServer(hConvList, hConvPrev); } /***************************************************************** * DdeQueryNextServer [USER32.112] */ HCONV WINAPI DdeQueryNextServer( HCONVLIST hConvList, HCONV hConvPrev ) { FIXME("(%ld,%ld): stub\n",hConvList,hConvPrev); return 0; } /***************************************************************** * DdeQueryStringA [USER32.113] * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * 1.1 Mar 1999 Keith Matthews Added links to instance table and related processing * */ DWORD WINAPI DdeQueryStringA(DWORD idInst, HSZ hsz, LPSTR psz, DWORD cchMax, INT iCodePage) { DWORD ret = 0; CHAR pString[MAX_BUFFER_LEN]; FIXME( "(%ld, 0x%lx, %p, %ld, %d): partial stub\n", idInst, hsz, psz, cchMax, iCodePage); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! */ /* needs something for DdeGetLAstError even if the manual doesn't say so */ return FALSE; } WaitForSingleObject(handle_mutex,1000); if ( (err_no=GetLastError()) != 0 ) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); /* needs something for DdeGetLAstError even if the manual doesn't say so */ return FALSE; } TRACE("Handle Mutex created/reserved\n"); /* First check instance */ reference_inst = Find_Instance_Entry(idInst); if ( reference_inst == NULL ) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return FALSE; /* Needs something here to record NOT_INITIALIZED ready for DdeGetLastError */ return FALSE; } if( iCodePage == CP_WINANSI ) { /* If psz is null, we have to return only the length * of the string. */ if( psz == NULL ) { psz = pString; cchMax = MAX_BUFFER_LEN; } ret = GlobalGetAtomNameA( hsz, (LPSTR)psz, cchMax ); } else { Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); } TRACE("returning pointer\n"); return ret; } /***************************************************************** * DdeQueryStringW [USER32.114] * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * */ DWORD WINAPI DdeQueryStringW(DWORD idInst, HSZ hsz, LPWSTR psz, DWORD cchMax, INT iCodePage) { DWORD ret = 0; WCHAR pString[MAX_BUFFER_LEN]; int factor = 1; FIXME( "(%ld, 0x%lx, %p, %ld, %d): stub\n", idInst, hsz, psz, cchMax, iCodePage); if( iCodePage == CP_WINUNICODE ) { /* If psz is null, we have to return only the length * of the string. */ if( psz == NULL ) { psz = pString; cchMax = MAX_BUFFER_LEN; /* Note: According to documentation if the psz parameter * was NULL this API must return the length of the string in bytes. */ factor = (int) sizeof(WCHAR)/sizeof(BYTE); } ret = GlobalGetAtomNameW( hsz, (LPWSTR)psz, cchMax ) * factor; } return ret; } /***************************************************************** * * DdeQueryString16 (DDEML.23) * ****************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 March 1999 K Matthews stub only */ DWORD WINAPI DdeQueryString16(DWORD idInst, HSZ hsz, LPSTR lpsz, DWORD cchMax, int codepage) { FIXME("(%ld, 0x%lx, %p, %ld, %d): stub \n", idInst, hsz, lpsz, cchMax, codepage); return 0; } /***************************************************************** * DdeDisconnectList (DDEML.6) */ BOOL16 WINAPI DdeDisconnectList16( HCONVLIST hConvList ) { return (BOOL16)DdeDisconnectList(hConvList); } /****************************************************************************** * DdeDisconnectList [USER32.98] Destroys list and terminates conversations * * RETURNS * Success: TRUE * Failure: FALSE */ BOOL WINAPI DdeDisconnectList( HCONVLIST hConvList) /* [in] Handle to conversation list */ { FIXME("(%ld): stub\n", hConvList); return TRUE; } /***************************************************************** * DdeConnect16 (DDEML.7) */ HCONV WINAPI DdeConnect16( DWORD idInst, HSZ hszService, HSZ hszTopic, LPCONVCONTEXT16 pCC ) { FIXME("empty stub\n" ); return 0; } /***************************************************************** * DdeConnect (USER32.92) */ HCONV WINAPI DdeConnect( DWORD idInst, HSZ hszService, HSZ hszTopic, LPCONVCONTEXT pCC ) { FIXME("(0x%lx,%ld,%ld,%p): stub\n",idInst,hszService,hszTopic, pCC); return 0; } /***************************************************************** * DdeDisconnect16 (DDEML.8) */ BOOL16 WINAPI DdeDisconnect16( HCONV hConv ) { return (BOOL16)DdeDisconnect( hConv ); } /***************************************************************** * DdeSetUserHandle16 (DDEML.10) */ BOOL16 WINAPI DdeSetUserHandle16( HCONV hConv, DWORD id, DWORD hUser ) { FIXME("(%ld,%ld,%ld): stub\n",hConv,id, hUser ); return 0; } /***************************************************************** * DdeCreateDataHandle16 (DDEML.14) */ HDDEDATA WINAPI DdeCreateDataHandle16( DWORD idInst, LPBYTE pSrc, DWORD cb, DWORD cbOff, HSZ hszItem, UINT16 wFmt, UINT16 afCmd ) { return DdeCreateDataHandle(idInst, pSrc, cb, cbOff, hszItem, wFmt, afCmd); } /***************************************************************** * DdeCreateDataHandle (USER32.94) */ HDDEDATA WINAPI DdeCreateDataHandle( DWORD idInst, LPBYTE pSrc, DWORD cb, DWORD cbOff, HSZ hszItem, UINT wFmt, UINT afCmd ) { FIXME( "(%ld,%p,%ld,%ld,0x%lx,%d,%d): stub\n", idInst, pSrc, cb, cbOff, hszItem, wFmt, afCmd ); return 0; } /***************************************************************** * DdeDisconnect (USER32.97) */ BOOL WINAPI DdeDisconnect( HCONV hConv ) { FIXME("empty stub\n" ); return 0; } /***************************************************************** * DdeReconnect (DDEML.37) (USER32.115) */ HCONV WINAPI DdeReconnect( HCONV hConv ) { FIXME("empty stub\n" ); return 0; } /***************************************************************** * DdeCreateStringHandle16 (DDEML.21) * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 ? ? basic stub * 1.1 June 1999 Keith Matthews amended onward call to supply default * code page if none supplied by caller */ HSZ WINAPI DdeCreateStringHandle16( DWORD idInst, LPCSTR str, INT16 codepage ) { if ( codepage ) { return DdeCreateStringHandleA( idInst, str, codepage ); } else { TRACE("Default codepage supplied\n"); return DdeCreateStringHandleA( idInst, str, CP_WINANSI); } } /***************************************************************** * DdeCreateStringHandleA [USER32.95] * * RETURNS * Success: String handle * Failure: 0 * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * 1.1 Mar 1999 Keith Matthews Added links to instance table and related processing * */ HSZ WINAPI DdeCreateStringHandleA( DWORD idInst, LPCSTR psz, INT codepage ) { HSZ hsz = 0; TRACE("(%ld,%s,%d): partial stub\n",idInst,debugstr_a(psz),codepage); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! can return FALSE since effect is the same */ return FALSE; } WaitForSingleObject(handle_mutex,1000); if ( (err_no=GetLastError()) != 0 ) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return DMLERR_SYS_ERROR; } TRACE("Handle Mutex created/reserved\n"); /* First check instance */ reference_inst = Find_Instance_Entry(idInst); if ( reference_inst == NULL ) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return 0; /* Needs something here to record NOT_INITIALIZED ready for DdeGetLastError */ return 0; } if (codepage==CP_WINANSI) { hsz = GlobalAddAtomA (psz); /* Save the handle so we know to clean it when * uninitialize is called. */ TRACE("added atom %s with HSZ 0x%lx, \n",debugstr_a(psz),hsz); InsertHSZNode( hsz ); if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) { reference_inst->Last_Error = DMLERR_SYS_ERROR; return 0; } TRACE("Returning pointer\n"); return hsz; } else { Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); } TRACE("Returning error\n"); return 0; } /****************************************************************************** * DdeCreateStringHandleW [USER32.96] Creates handle to identify string * * RETURNS * Success: String handle * Failure: 0 * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * 1.1 Mar 1999 Keith Matthews Added links to instance table and related processing * */ HSZ WINAPI DdeCreateStringHandleW( DWORD idInst, /* [in] Instance identifier */ LPCWSTR psz, /* [in] Pointer to string */ INT codepage) /* [in] Code page identifier */ { HSZ hsz = 0; TRACE("(%ld,%s,%d): partial stub\n",idInst,debugstr_w(psz),codepage); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! can return FALSE since effect is the same */ return FALSE; } WaitForSingleObject(handle_mutex,1000); if ( (err_no=GetLastError()) != 0 ) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return DMLERR_SYS_ERROR; } TRACE("CreateString - Handle Mutex created/reserved\n"); /* First check instance */ reference_inst = Find_Instance_Entry(idInst); if ( reference_inst == NULL ) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return 0; /* Needs something here to record NOT_INITIALIZED ready for DdeGetLastError */ return 0; } FIXME("(%ld,%s,%d): partial stub\n",idInst,debugstr_w(psz),codepage); if (codepage==CP_WINUNICODE) /* Should we be checking this against the unicode/ascii nature of the call to DdeInitialize ? */ { hsz = GlobalAddAtomW (psz); /* Save the handle so we know to clean it when * uninitialize is called. */ InsertHSZNode( hsz ); if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) { reference_inst->Last_Error = DMLERR_SYS_ERROR; return 0; } TRACE("Returning pointer\n"); return hsz; } else { Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); } TRACE("Returning error\n"); return 0; } /***************************************************************** * DdeFreeStringHandle16 (DDEML.22) */ BOOL16 WINAPI DdeFreeStringHandle16( DWORD idInst, HSZ hsz ) { FIXME("idInst %ld hsz 0x%lx\n",idInst,hsz); return (BOOL)DdeFreeStringHandle( idInst, hsz ); } /***************************************************************** * DdeFreeStringHandle (USER32.101) * RETURNS: success: nonzero * fail: zero * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 Dec 1998 Corel/Macadamian Initial version * 1.1 Apr 1999 Keith Matthews Added links to instance table and related processing * */ BOOL WINAPI DdeFreeStringHandle( DWORD idInst, HSZ hsz ) { TRACE("(%ld,%ld): \n",idInst,hsz); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! can return TRUE since effect is the same */ return TRUE; } if ( ( prev_err = GetLastError()) != 0 ) { /* something earlier failed !! */ ERR("Error %li before WaitForSingleObject - trying to continue\n",prev_err); } WaitForSingleObject(handle_mutex,1000); if ( ((err_no=GetLastError()) != 0 ) && (err_no != prev_err )) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return DMLERR_SYS_ERROR; } TRACE("Handle Mutex created/reserved\n"); /* First check instance */ reference_inst = Find_Instance_Entry(idInst); if ( (reference_inst == NULL) || (reference_inst->Node_list == NULL)) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return TRUE; /* Nothing has been initialised - exit now ! can return TRUE since effect is the same */ return TRUE; } /* Remove the node associated with this HSZ. */ RemoveHSZNode( hsz ); /* Free the string associated with this HSZ. */ Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return GlobalDeleteAtom (hsz) ? 0 : hsz; } /***************************************************************** * DdeFreeDataHandle16 (DDEML.19) */ BOOL16 WINAPI DdeFreeDataHandle16( HDDEDATA hData ) { return (BOOL)DdeFreeDataHandle( hData ); } /***************************************************************** * DdeFreeDataHandle (USER32.100) */ BOOL WINAPI DdeFreeDataHandle( HDDEDATA hData ) { FIXME("empty stub\n" ); return TRUE; } /***************************************************************** * DdeKeepStringHandle16 (DDEML.24) */ BOOL16 WINAPI DdeKeepStringHandle16( DWORD idInst, HSZ hsz ) { return (BOOL)DdeKeepStringHandle( idInst, hsz ); } /***************************************************************** * DdeKeepStringHandle (USER32.108) * * RETURNS: success: nonzero * fail: zero * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 ? ? Stub only * 1.1 Jun 1999 Keith Matthews First cut implementation * */ BOOL WINAPI DdeKeepStringHandle( DWORD idInst, HSZ hsz ) { TRACE("(%ld,%ld): \n",idInst,hsz); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! can return FALSE since effect is the same */ return FALSE; } if ( ( prev_err = GetLastError()) != 0 ) { /* something earlier failed !! */ ERR("Error %li before WaitForSingleObject - trying to continue\n",prev_err); } WaitForSingleObject(handle_mutex,1000); if ( ((err_no=GetLastError()) != 0 ) && (err_no != prev_err )) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return FALSE; } TRACE("Handle Mutex created/reserved\n"); /* First check instance */ reference_inst = Find_Instance_Entry(idInst); if ( (reference_inst == NULL) || (reference_inst->Node_list == NULL)) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return FALSE; /* Nothing has been initialised - exit now ! can return FALSE since effect is the same */ return FALSE; return FALSE; } DdeReserveAtom(reference_inst,hsz); Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return TRUE; } /***************************************************************** * DdeClientTransaction16 (DDEML.11) */ HDDEDATA WINAPI DdeClientTransaction16( LPVOID pData, DWORD cbData, HCONV hConv, HSZ hszItem, UINT16 wFmt, UINT16 wType, DWORD dwTimeout, LPDWORD pdwResult ) { return DdeClientTransaction( (LPBYTE)pData, cbData, hConv, hszItem, wFmt, wType, dwTimeout, pdwResult ); } /***************************************************************** * DdeClientTransaction (USER32.90) */ HDDEDATA WINAPI DdeClientTransaction( LPBYTE pData, DWORD cbData, HCONV hConv, HSZ hszItem, UINT wFmt, UINT wType, DWORD dwTimeout, LPDWORD pdwResult ) { FIXME("empty stub\n" ); return 0; } /***************************************************************** * * DdeAbandonTransaction16 (DDEML.12) * */ BOOL16 WINAPI DdeAbandonTransaction16( DWORD idInst, HCONV hConv, DWORD idTransaction ) { FIXME("empty stub\n" ); return TRUE; } /***************************************************************** * * DdeAbandonTransaction (USER32.87) * ****************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 March 1999 K Matthews stub only */ BOOL WINAPI DdeAbandonTransaction( DWORD idInst, HCONV hConv, DWORD idTransaction ) { FIXME("empty stub\n" ); return TRUE; } /***************************************************************** * DdePostAdvise16 [DDEML.13] */ BOOL16 WINAPI DdePostAdvise16( DWORD idInst, HSZ hszTopic, HSZ hszItem ) { return (BOOL16)DdePostAdvise(idInst, hszTopic, hszItem); } /****************************************************************************** * DdePostAdvise [USER32.110] Send transaction to DDE callback function. * * RETURNS * Success: TRUE * Failure: FALSE */ BOOL WINAPI DdePostAdvise( DWORD idInst, /* [in] Instance identifier */ HSZ hszTopic, /* [in] Handle to topic name string */ HSZ hszItem) /* [in] Handle to item name string */ { FIXME("(%ld,%ld,%ld): stub\n",idInst,hszTopic,hszItem); return TRUE; } /***************************************************************** * DdeAddData16 (DDEML.15) */ HDDEDATA WINAPI DdeAddData16( HDDEDATA hData, LPBYTE pSrc, DWORD cb, DWORD cbOff ) { FIXME("empty stub\n" ); return 0; } /***************************************************************** * * DdeAddData (USER32.89) * ****************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 March 1999 K Matthews stub only */ HDDEDATA WINAPI DdeAddData( HDDEDATA hData, LPBYTE pSrc, DWORD cb, DWORD cbOff ) { FIXME("empty stub\n" ); return 0; } /***************************************************************** * * DdeImpersonateClient (USER32.105) * ****************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 March 1999 K Matthews stub only */ BOOL WINAPI DdeImpersonateClient( HCONV hConv) { FIXME("empty stub\n" ); return TRUE; } /***************************************************************** * * DdeSetQualityOfService (USER32.116) * ****************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 March 1999 K Matthews stub only */ BOOL WINAPI DdeSetQualityOfService( HWND hwndClient, CONST SECURITY_QUALITY_OF_SERVICE *pqosNew, PSECURITY_QUALITY_OF_SERVICE pqosPrev) { FIXME("empty stub\n" ); return TRUE; } /***************************************************************** * * DdeSetUserHandle (USER32.117) * ****************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 March 1999 K Matthews stub only */ BOOL WINAPI DdeSetUserHandle( HCONV hConv, DWORD id, DWORD hUser) { FIXME("empty stub\n" ); return TRUE; } /****************************************************************************** * DdeGetData [USER32.102] Copies data from DDE object ot local buffer * * RETURNS * Size of memory object associated with handle */ DWORD WINAPI DdeGetData( HDDEDATA hData, /* [in] Handle to DDE object */ LPBYTE pDst, /* [in] Pointer to destination buffer */ DWORD cbMax, /* [in] Amount of data to copy */ DWORD cbOff) /* [in] Offset to beginning of data */ { FIXME("(%ld,%p,%ld,%ld): stub\n",hData,pDst,cbMax,cbOff); return cbMax; } /***************************************************************** * DdeGetData16 [DDEML.16] */ DWORD WINAPI DdeGetData16( HDDEDATA hData, LPBYTE pDst, DWORD cbMax, DWORD cbOff) { return DdeGetData(hData, pDst, cbMax, cbOff); } /***************************************************************** * DdeAccessData16 (DDEML.17) */ LPBYTE WINAPI DdeAccessData16( HDDEDATA hData, LPDWORD pcbDataSize ) { return DdeAccessData(hData, pcbDataSize); } /***************************************************************** * DdeAccessData (USER32.88) */ LPBYTE WINAPI DdeAccessData( HDDEDATA hData, LPDWORD pcbDataSize ) { FIXME("(%ld,%p): stub\n", hData, pcbDataSize); return 0; } /***************************************************************** * DdeUnaccessData16 (DDEML.18) */ BOOL16 WINAPI DdeUnaccessData16( HDDEDATA hData ) { return DdeUnaccessData(hData); } /***************************************************************** * DdeUnaccessData (USER32.118) */ BOOL WINAPI DdeUnaccessData( HDDEDATA hData ) { FIXME("(0x%lx): stub\n", hData); return 0; } /***************************************************************** * DdeEnableCallback16 (DDEML.26) */ BOOL16 WINAPI DdeEnableCallback16( DWORD idInst, HCONV hConv, UINT16 wCmd ) { return DdeEnableCallback(idInst, hConv, wCmd); } /***************************************************************** * DdeEnableCallback (USER32.99) */ BOOL WINAPI DdeEnableCallback( DWORD idInst, HCONV hConv, UINT wCmd ) { FIXME("(%ld, 0x%lx, %d) stub\n", idInst, hConv, wCmd); return 0; } /***************************************************************** * DdeNameService16 (DDEML.27) */ HDDEDATA WINAPI DdeNameService16( DWORD idInst, HSZ hsz1, HSZ hsz2, UINT16 afCmd ) { return DdeNameService( idInst, hsz1, hsz2, afCmd ); } /****************************************************************************** * DdeNameService [USER32.109] {Un}registers service name of DDE server * * PARAMS * idInst [I] Instance identifier * hsz1 [I] Handle to service name string * hsz2 [I] Reserved * afCmd [I] Service name flags * * RETURNS * Success: Non-zero * Failure: 0 * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 ? ? Stub * 1.1 Apr 1999 Keith Matthews Added trap for non-existent instance (uninitialised instance 0 * used by some MS programs for unfathomable reasons) * 1.2 May 1999 Keith Matthews Added parameter validation and basic service name handling. * Still needs callback parts * */ HDDEDATA WINAPI DdeNameService( DWORD idInst, HSZ hsz1, HSZ hsz2, UINT afCmd ) { UINT Cmd_flags = afCmd; ServiceNode* this_service, *reference_service ; CHAR SNameBuffer[MAX_BUFFER_LEN]; UINT rcode; this_service = NULL; FIXME("(%ld,%ld,%ld,%d): stub\n",idInst,hsz1,hsz2,afCmd); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! * needs something for DdeGetLastError */ return 0L; } WaitForSingleObject(handle_mutex,1000); if ( ((err_no=GetLastError()) != 0 ) && (err_no != prev_err )) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return DMLERR_SYS_ERROR; } TRACE("Handle Mutex created/reserved\n"); /* First check instance */ reference_inst = Find_Instance_Entry(idInst); this_instance = reference_inst; if (reference_inst == NULL) { TRACE("Instance not found as initialised\n"); if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return TRUE; /* Nothing has been initialised - exit now ! can return TRUE since effect is the same */ return FALSE; } if ( hsz2 != 0L ) { /* Illegal, reserved parameter */ reference_inst->Last_Error = DMLERR_INVALIDPARAMETER; Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); FIXME("Reserved parameter no-zero !!\n"); return FALSE; } if ( hsz1 == 0L ) { /* * General unregister situation */ if ( afCmd != DNS_UNREGISTER ) { /* don't know if we should check this but it makes sense * why supply REGISTER or filter flags if de-registering all */ TRACE("General unregister unexpected flags\n"); reference_inst->Last_Error = DMLERR_DLL_USAGE; Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return FALSE; } /* Loop to find all registered service and de-register them */ if ( reference_inst->ServiceNames == NULL ) { /* None to unregister !! */ TRACE("General de-register - nothing registered\n"); reference_inst->Last_Error = DMLERR_DLL_USAGE; Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return FALSE; } else { this_service = reference_inst->ServiceNames; while ( this_service->next != NULL) { reference_service = this_service; this_service = this_service->next; DdeReleaseAtom(reference_inst,reference_service->hsz); HeapFree(SystemHeap, 0, this_service); /* finished - release heap space used as work store */ } HeapFree(SystemHeap, 0, this_service); /* finished - release heap space used as work store */ TRACE("General de-register - finished\n"); } Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return TRUE; } TRACE("Specific name action detected\n"); reference_service = Find_Service_Name(hsz1,reference_inst); if (( Cmd_flags && DNS_REGISTER ) == DNS_REGISTER ) { /* Register new service name */ rcode=GlobalGetAtomNameA(hsz1,SNameBuffer,MAX_ATOM_LEN); Cmd_flags = Cmd_flags ^ DNS_REGISTER; this_service= (ServiceNode*)HeapAlloc( SystemHeap, 0, sizeof(ServiceNode) ); this_service->next = NULL; this_service->hsz = hsz1; this_service->FilterOn = TRUE; if ( reference_inst->ServiceNames == NULL ) { /* easy one - nothing else there */ TRACE("Adding 1st service name\n"); reference_inst->ServiceNames = this_service; GlobalAddAtomA(SNameBuffer); } else { /* more difficult - may have also been registered */ if (reference_service != NULL ) { /* Service name already registered !! * what do we do ? */ HeapFree(SystemHeap, 0, this_service); /* finished - release heap space used as work store */ FIXME("Trying to register already registered service !!\n"); } else { /* Add this one into the chain */ TRACE("Adding subsequent service name\n"); this_service->next = reference_inst->ServiceNames; reference_inst->ServiceNames = this_service; GlobalAddAtomA(SNameBuffer); } } } if ( (Cmd_flags && DNS_UNREGISTER ) == DNS_UNREGISTER ) { /* De-register service name */ Cmd_flags = Cmd_flags ^ DNS_UNREGISTER; if ( reference_inst->ServiceNames == NULL ) { /* easy one - already done */ } else { /* more difficult - must hook out of sequence */ this_instance = reference_inst; if (this_service == NULL ) { /* Service name not registered !! * what do we do ? */ FIXME("Trying to de-register unregistered service !!\n"); } else { /* Delete this one from the chain */ if ( reference_inst->ServiceNames == this_service ) { /* special case - the first/only entry */ reference_inst->ServiceNames = this_service->next; } else { /* general case */ reference_service->next= reference_inst->ServiceNames; while ( reference_service->next!= this_service ) { reference_service = reference_service->next; } reference_service->next= this_service->next; } DdeReleaseAtom(reference_inst,this_service->hsz); HeapFree(SystemHeap, 0, this_service); /* finished - release heap space */ } } } if ( ( Cmd_flags && DNS_FILTEROFF ) != DNS_FILTEROFF ) { /* Set filter flags on to hold notifications of connection * * test coded this way as this is the default setting */ Cmd_flags = Cmd_flags ^ DNS_FILTERON; if ( ( reference_inst->ServiceNames == NULL ) || ( this_service == NULL) ) { /* trying to filter where no service names !! */ reference_inst->Last_Error = DMLERR_DLL_USAGE; Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return FALSE; } else { this_service->FilterOn = TRUE; } } if ( ( Cmd_flags && DNS_FILTEROFF ) == DNS_FILTEROFF ) { /* Set filter flags on to hold notifications of connection */ Cmd_flags = Cmd_flags ^ DNS_FILTEROFF; if ( ( reference_inst->ServiceNames == NULL ) || ( this_service == NULL) ) { /* trying to filter where no service names !! */ reference_inst->Last_Error = DMLERR_DLL_USAGE; Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return FALSE; } else { this_service->FilterOn = FALSE; } } Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return TRUE; } /***************************************************************** * DdeGetLastError16 (DDEML.20) */ UINT16 WINAPI DdeGetLastError16( DWORD idInst ) { return (UINT16)DdeGetLastError( idInst ); } /****************************************************************************** * DdeGetLastError [USER32.103] Gets most recent error code * * PARAMS * idInst [I] Instance identifier * * RETURNS * Last error code * ***************************************************************** * * Change History * * Vn Date Author Comment * * 1.0 ? ? Stub * 1.1 Apr 1999 Keith Matthews Added response for non-existent instance (uninitialised instance 0 * used by some MS programs for unfathomable reasons) * 1.2 May 1999 Keith Matthews Added interrogation of Last_Error for instance handle where found. * */ UINT WINAPI DdeGetLastError( DWORD idInst ) { DWORD error_code; FIXME("(%ld): stub\n",idInst); if ( DDE_Max_Assigned_Instance == 0 ) { /* Nothing has been initialised - exit now ! */ return DMLERR_DLL_NOT_INITIALIZED; } if ( ( prev_err = GetLastError()) != 0 ) { /* something earlier failed !! */ ERR("Error %li before WaitForSingleObject - trying to continue\n",prev_err); } WaitForSingleObject(handle_mutex,1000); if ( ((err_no=GetLastError()) != 0 ) && (err_no != prev_err )) { /* FIXME - needs refinement with popup for timeout, also is timeout interval OK */ ERR("WaitForSingleObject failed - handle list %li\n",err_no); return DMLERR_SYS_ERROR; } TRACE("Handle Mutex created/reserved\n"); /* First check instance */ reference_inst = Find_Instance_Entry(idInst); if (reference_inst == NULL) { if ( Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE)) return TRUE; /* Nothing has been initialised - exit now ! can return TRUE since effect is the same */ return DMLERR_DLL_NOT_INITIALIZED; } error_code = this_instance->Last_Error; this_instance->Last_Error = 0; Release_reserved_mutex(handle_mutex,"handle_mutex",FALSE,FALSE); return error_code; } /***************************************************************** * DdeCmpStringHandles16 (DDEML.36) */ int WINAPI DdeCmpStringHandles16( HSZ hsz1, HSZ hsz2 ) { return DdeCmpStringHandles(hsz1, hsz2); } /***************************************************************** * DdeCmpStringHandles (USER32.91) * * Compares the value of two string handles. This comparison is * not case sensitive. * * Returns: * -1 The value of hsz1 is zero or less than hsz2 * 0 The values of hsz 1 and 2 are the same or both zero. * 1 The value of hsz2 is zero of less than hsz1 */ int WINAPI DdeCmpStringHandles( HSZ hsz1, HSZ hsz2 ) { CHAR psz1[MAX_BUFFER_LEN]; CHAR psz2[MAX_BUFFER_LEN]; int ret = 0; int ret1, ret2; TRACE("handle 1, handle 2\n" ); ret1 = GlobalGetAtomNameA( hsz1, psz1, MAX_BUFFER_LEN ); ret2 = GlobalGetAtomNameA( hsz2, psz2, MAX_BUFFER_LEN ); /* Make sure we found both strings. */ if( ret1 == 0 && ret2 == 0 ) { /* If both are not found, return both "zero strings". */ ret = 0; } else if( ret1 == 0 ) { /* If hsz1 is a not found, return hsz1 is "zero string". */ ret = -1; } else if( ret2 == 0 ) { /* If hsz2 is a not found, return hsz2 is "zero string". */ ret = 1; } else { /* Compare the two strings we got ( case insensitive ). */ ret = strcasecmp( psz1, psz2 ); /* Since strcmp returns any number smaller than * 0 when the first string is found to be less than * the second one we must make sure we are returning * the proper values. */ if( ret < 0 ) { ret = -1; } else if( ret > 0 ) { ret = 1; } } return ret; } /***************************************************************** * PackDDElParam (USER32.414) * * RETURNS * success: nonzero * failure: zero */ UINT WINAPI PackDDElParam(UINT msg, UINT uiLo, UINT uiHi) { FIXME("stub.\n"); return 0; } /***************************************************************** * UnpackDDElParam (USER32.562) * * RETURNS * success: nonzero * failure: zero */ UINT WINAPI UnpackDDElParam(UINT msg, UINT lParam, UINT *uiLo, UINT *uiHi) { FIXME("stub.\n"); return 0; } /***************************************************************** * FreeDDElParam (USER32.204) * * RETURNS * success: nonzero * failure: zero */ UINT WINAPI FreeDDElParam(UINT msg, UINT lParam) { FIXME("stub.\n"); return 0; } /***************************************************************** * ReuseDDElParam (USER32.446) * */ UINT WINAPI ReuseDDElParam(UINT lParam, UINT msgIn, UINT msgOut, UINT uiLi, UINT uiHi) { FIXME("stub.\n"); return 0; } /****************************************************************** * DdeQueryConvInfo16 (DDEML.9) * */ UINT16 WINAPI DdeQueryConvInfo16( HCONV hconv, DWORD idTransaction , LPCONVINFO16 lpConvInfo) { FIXME("stub.\n"); return 0; } /****************************************************************** * DdeQueryConvInfo (USER32.111) * */ UINT WINAPI DdeQueryConvInfo( HCONV hconv, DWORD idTransaction , LPCONVINFO lpConvInfo) { FIXME("stub.\n"); return 0; }