mirror of
https://github.com/reactos/wine.git
synced 2024-12-05 02:07:16 +00:00
269 lines
12 KiB
C
269 lines
12 KiB
C
/* -*- tab-width: 8; c-basic-offset: 4 -*- */
|
|
|
|
/*
|
|
* DDEML library
|
|
*
|
|
* Copyright 1997 Alexandre Julliard
|
|
* Copyright 1997 Len White
|
|
* Copyright 1999 Keith Matthews
|
|
* Copyright 2000 Corel
|
|
* Copyright 2001 Eric Pouech
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __WINE_DDEML_PRIVATE_H
|
|
#define __WINE_DDEML_PRIVATE_H
|
|
|
|
/* defined in atom.c file.
|
|
*/
|
|
#define MAX_ATOM_LEN 255
|
|
|
|
/* Maximum buffer size ( including the '\0' ).
|
|
*/
|
|
#define MAX_BUFFER_LEN (MAX_ATOM_LEN + 1)
|
|
|
|
/* The internal structures (prefixed by WDML) are used as follows:
|
|
* + a WDML_INSTANCE is created for each instance creation (DdeInitialize)
|
|
* - a popup window (InstanceClass) is created for each instance.
|
|
* - this window is used to receive all the DDEML events (server registration,
|
|
* conversation confirmation...). See the WM_WDML_???? messages for details
|
|
* + when registring a server (DdeNameService) a WDML_SERVER is created
|
|
* - a popup window (ServerNameClass) is created
|
|
* + a conversation is represented by two WDML_CONV structures:
|
|
* - one on the client side, the other one on the server side
|
|
* - this is needed because the address spaces may be different
|
|
* - therefore, two lists of links are kept for each instance
|
|
* - two windows are created for a conversation:
|
|
* o a popup window on client side (ClientConvClass)
|
|
* o a child window (of the ServerName) on the server side
|
|
* (ServerConvClass)
|
|
* - all the exchanges then take place between those two windows
|
|
* - windows for the conversation exist in two forms (Ansi & Unicode). This
|
|
* is only needed when a partner in a conv is not handled by DDEML. The
|
|
* type (A/W) of the window is used to handle the ansi <=> unicode
|
|
* transformations
|
|
* - two handles are created for a conversation (on each side). Each handle
|
|
* is linked to a structure. To help differentiate those handles, the
|
|
* local one has an even value, whereas the remote one has an odd value.
|
|
* + a (warm or link) is represented by two WDML_LINK structures:
|
|
* - one on client side, the other one on server side
|
|
* - therefore, two lists of links are kept for each instance
|
|
*
|
|
* To help getting back to data, WDML windows store information:
|
|
* - offset 0: the DDE instance
|
|
* - offset 4: the current conversation (for ClientConv and ServerConv only)
|
|
*
|
|
* All the implementation (client & server) makes the assumption that the other side
|
|
* is not always a DDEML partner. However, if it's the case, supplementary services
|
|
* are available (most notably the REGISTER/UNREGISTER and CONNECT_CONFIRM messages
|
|
* to the callback function). To be correct in every situation, all the basic
|
|
* exchanges are made using the 'pure' DDE protocol. A (future !) enhancement would
|
|
* be to provide a new protocol in the case were both partners are handled by DDEML.
|
|
*
|
|
* The StringHandles are in fact stored as local atoms. So an HSZ and a (local) atom
|
|
* can be used interchangably. However, in order to keep track of the allocated HSZ,
|
|
* and to free them upon instance termination, all HSZ are stored in a link list.
|
|
* When the HSZ need to be passed thru DDE messages, we need to convert them back and
|
|
* forth to global atoms.
|
|
*/
|
|
|
|
/* this struct has the same mapping as all the DDE??? structures */
|
|
typedef struct {
|
|
unsigned short unused:12,
|
|
fResponse:1,
|
|
fRelease:1,
|
|
fDeferUpd:1,
|
|
fAckReq:1;
|
|
short cfFormat;
|
|
} WINE_DDEHEAD;
|
|
|
|
typedef struct tagHSZNode
|
|
{
|
|
struct tagHSZNode* next;
|
|
HSZ hsz;
|
|
unsigned refCount;
|
|
} HSZNode;
|
|
|
|
typedef struct tagWDML_SERVER
|
|
{
|
|
struct tagWDML_SERVER* next;
|
|
HSZ hszService;
|
|
HSZ hszServiceSpec;
|
|
ATOM atomService;
|
|
ATOM atomServiceSpec;
|
|
BOOL filterOn;
|
|
HWND hwndServer;
|
|
} WDML_SERVER;
|
|
|
|
typedef struct tagWDML_XACT {
|
|
struct tagWDML_XACT* next; /* list of transactions in conversation */
|
|
DWORD xActID;
|
|
UINT ddeMsg;
|
|
HDDEDATA hDdeData;
|
|
DWORD dwTimeout;
|
|
DWORD hUser;
|
|
UINT wType;
|
|
UINT wFmt;
|
|
HSZ hszItem;
|
|
ATOM atom; /* as converted from or to hszItem */
|
|
HGLOBAL hMem;
|
|
LPARAM lParam; /* useful for reusing */
|
|
} WDML_XACT;
|
|
|
|
typedef struct tagWDML_CONV
|
|
{
|
|
struct tagWDML_CONV* next; /* to link all the conversations */
|
|
struct tagWDML_INSTANCE* instance;
|
|
HSZ hszService; /* pmt used for connection */
|
|
HSZ hszTopic; /* pmt used for connection */
|
|
UINT afCmd; /* service name flag */
|
|
CONVCONTEXT convContext;
|
|
HWND hwndClient; /* source of conversation (ClientConvClass) */
|
|
HWND hwndServer; /* destination of conversation (ServerConvClass) */
|
|
WDML_XACT* transactions; /* pending transactions */
|
|
DWORD hUser; /* user defined value */
|
|
DWORD wStatus; /* same bits as convinfo.wStatus */
|
|
DWORD wConvst; /* same values as convinfo.wConvst */
|
|
} WDML_CONV;
|
|
|
|
/* DDE_LINK struct defines hot, warm, and cold links */
|
|
typedef struct tagWDML_LINK {
|
|
struct tagWDML_LINK* next; /* to link all the active links */
|
|
HCONV hConv; /* to get back to the converstaion */
|
|
UINT transactionType;/* 0 for no link */
|
|
HSZ hszItem; /* item targetted for (hot/warm) link */
|
|
UINT uFmt; /* format for data */
|
|
} WDML_LINK;
|
|
|
|
typedef struct tagWDML_INSTANCE
|
|
{
|
|
struct tagWDML_INSTANCE* next;
|
|
DWORD instanceID; /* needed to track monitor usage */
|
|
DWORD threadID; /* needed to keep instance linked to a unique thread */
|
|
BOOL monitor; /* have these two as full Booleans cos they'll be tested frequently */
|
|
BOOL clientOnly; /* bit wasteful of space but it will be faster */
|
|
BOOL unicode; /* Flag to indicate Win32 API used to initialise */
|
|
BOOL win16; /* flag to indicate Win16 API used to initialize */
|
|
HSZNode* nodeList; /* for cleaning upon exit */
|
|
PFNCALLBACK callback;
|
|
DWORD CBFflags;
|
|
DWORD monitorFlags;
|
|
DWORD lastError;
|
|
HWND hwndEvent;
|
|
WDML_SERVER* servers; /* list of registered servers */
|
|
WDML_CONV* convs[2]; /* active conversations for this instance (client and server) */
|
|
WDML_LINK* links[2]; /* active links for this instance (client and server) */
|
|
} WDML_INSTANCE;
|
|
|
|
extern CRITICAL_SECTION WDML_CritSect; /* protection for instance list */
|
|
|
|
/* header for the DDE Data objects */
|
|
typedef struct tagDDE_DATAHANDLE_HEAD
|
|
{
|
|
short cfFormat;
|
|
WORD bAppOwned;
|
|
} DDE_DATAHANDLE_HEAD;
|
|
|
|
typedef enum tagWDML_SIDE
|
|
{
|
|
WDML_CLIENT_SIDE = 0, WDML_SERVER_SIDE = 1
|
|
} WDML_SIDE;
|
|
|
|
typedef enum {
|
|
WDML_QS_ERROR, WDML_QS_HANDLED, WDML_QS_PASS, WDML_QS_SWALLOWED, WDML_QS_BLOCK,
|
|
} WDML_QUEUE_STATE;
|
|
|
|
extern HDDEDATA WDML_InvokeCallback(WDML_INSTANCE* pInst, UINT uType, UINT uFmt, HCONV hConv,
|
|
HSZ hsz1, HSZ hsz2, HDDEDATA hdata,
|
|
ULONG_PTR dwData1, ULONG_PTR dwData2);
|
|
extern HDDEDATA WDML_InvokeCallback16(PFNCALLBACK pfn, UINT uType, UINT uFmt, HCONV hConv,
|
|
HSZ hsz1, HSZ hsz2, HDDEDATA hdata,
|
|
DWORD dwData1, DWORD dwData2);
|
|
extern WDML_SERVER* WDML_AddServer(WDML_INSTANCE* pInstance, HSZ hszService, HSZ hszTopic);
|
|
extern void WDML_RemoveServer(WDML_INSTANCE* pInstance, HSZ hszService, HSZ hszTopic);
|
|
extern WDML_SERVER* WDML_FindServer(WDML_INSTANCE* pInstance, HSZ hszService, HSZ hszTopic);
|
|
/* transaction handler on the server side */
|
|
extern WDML_QUEUE_STATE WDML_ServerHandle(WDML_CONV* pConv, WDML_XACT* pXAct);
|
|
/* called both in DdeClientTransaction and server side. */
|
|
extern UINT WDML_Initialize(LPDWORD pidInst, PFNCALLBACK pfnCallback,
|
|
DWORD afCmd, DWORD ulRes, BOOL bUnicode, BOOL b16);
|
|
extern WDML_CONV* WDML_AddConv(WDML_INSTANCE* pInstance, WDML_SIDE side,
|
|
HSZ hszService, HSZ hszTopic, HWND hwndClient, HWND hwndServer);
|
|
extern void WDML_RemoveConv(WDML_CONV* pConv, WDML_SIDE side);
|
|
extern WDML_CONV* WDML_GetConv(HCONV hConv, BOOL checkConnected);
|
|
extern WDML_CONV* WDML_GetConvFromWnd(HWND hWnd);
|
|
extern WDML_CONV* WDML_FindConv(WDML_INSTANCE* pInstance, WDML_SIDE side,
|
|
HSZ hszService, HSZ hszTopic);
|
|
extern BOOL WDML_PostAck(WDML_CONV* pConv, WDML_SIDE side, WORD appRetCode,
|
|
BOOL fBusy, BOOL fAck, UINT pmt, LPARAM lParam, UINT oldMsg);
|
|
extern void WDML_AddLink(WDML_INSTANCE* pInstance, HCONV hConv, WDML_SIDE side,
|
|
UINT wType, HSZ hszItem, UINT wFmt);
|
|
extern WDML_LINK* WDML_FindLink(WDML_INSTANCE* pInstance, HCONV hConv, WDML_SIDE side,
|
|
HSZ hszItem, BOOL use_fmt, UINT uFmt);
|
|
extern void WDML_RemoveLink(WDML_INSTANCE* pInstance, HCONV hConv, WDML_SIDE side,
|
|
HSZ hszItem, UINT wFmt);
|
|
extern void WDML_RemoveAllLinks(WDML_INSTANCE* pInstance, WDML_CONV* pConv, WDML_SIDE side);
|
|
/* string internals */
|
|
extern void WDML_FreeAllHSZ(WDML_INSTANCE* pInstance);
|
|
extern BOOL WDML_DecHSZ(WDML_INSTANCE* pInstance, HSZ hsz);
|
|
extern BOOL WDML_IncHSZ(WDML_INSTANCE* pInstance, HSZ hsz);
|
|
extern ATOM WDML_MakeAtomFromHsz(HSZ hsz);
|
|
extern HSZ WDML_MakeHszFromAtom(WDML_INSTANCE* pInstance, ATOM atom);
|
|
/* client calls these */
|
|
extern WDML_XACT* WDML_AllocTransaction(WDML_INSTANCE* pInstance, UINT ddeMsg, UINT wFmt, HSZ hszItem);
|
|
extern void WDML_QueueTransaction(WDML_CONV* pConv, WDML_XACT* pXAct);
|
|
extern BOOL WDML_UnQueueTransaction(WDML_CONV* pConv, WDML_XACT* pXAct);
|
|
extern void WDML_FreeTransaction(WDML_INSTANCE* pInstance, WDML_XACT* pXAct, BOOL doFreePmt);
|
|
extern WDML_XACT* WDML_FindTransaction(WDML_CONV* pConv, DWORD tid);
|
|
extern HGLOBAL WDML_DataHandle2Global(HDDEDATA hDdeData, BOOL fResponse, BOOL fRelease,
|
|
BOOL fDeferUpd, BOOL dAckReq);
|
|
extern HDDEDATA WDML_Global2DataHandle(HGLOBAL hMem, WINE_DDEHEAD* da);
|
|
extern BOOL WDML_IsAppOwned(HDDEDATA hDdeData);
|
|
extern WDML_INSTANCE* WDML_GetInstance(DWORD InstId);
|
|
extern WDML_INSTANCE* WDML_GetInstanceFromWnd(HWND hWnd);
|
|
/* broadcasting to DDE windows */
|
|
extern void WDML_BroadcastDDEWindows(const char* clsName, UINT uMsg,
|
|
WPARAM wParam, LPARAM lParam);
|
|
extern void WDML_NotifyThreadExit(DWORD tid);
|
|
|
|
static inline void WDML_ExtractAck(WORD status, DDEACK* da)
|
|
{
|
|
*da = *((DDEACK*)&status);
|
|
}
|
|
|
|
extern const char WDML_szEventClass[]; /* class of window for events (aka instance) */
|
|
extern const char WDML_szServerConvClassA[]; /* class of window for server side conv (ansi) */
|
|
extern const WCHAR WDML_szServerConvClassW[]; /* class of window for server side conv (unicode) */
|
|
extern const char WDML_szClientConvClassA[]; /* class of window for client side conv (ansi) */
|
|
extern const WCHAR WDML_szClientConvClassW[]; /* class of window for client side conv (unicode) */
|
|
|
|
#define WM_WDML_REGISTER (WM_USER + 0x200)
|
|
#define WM_WDML_UNREGISTER (WM_USER + 0x201)
|
|
#define WM_WDML_CONNECT_CONFIRM (WM_USER + 0x202)
|
|
|
|
/* parameters for messages:
|
|
* wParam lParam
|
|
* Register atom for service name atom for service spec
|
|
* Unregister atom for service name atom for service spec
|
|
* ConnectConfirm client window handle server window handle
|
|
*/
|
|
|
|
#define GWL_WDML_INSTANCE (0)
|
|
#define GWL_WDML_CONVERSATION (4)
|
|
#define GWL_WDML_SERVER (4)
|
|
|
|
#endif /* __WINE_DDEML_PRIVATE_H */
|