1st cut implementation of DdeInitialize32W and supporting code.

include/ddeml.h

diff --git a/include/ddeml.h b/include/ddeml.h
index dfb08ee..cf76a8d 100644
--- a/include/ddeml.h
+++ b/include/ddeml.h
@@ -16,11 +16,119 @@
 #define CP_WINUNICODE   1200
 
 #define MSGF_DDEMGR 0x8001
+/***************************************************
+
+      FLAGS Section - copied from Microsoft SDK as must be standard, probably Copyright Microsoft Corporation
+
+***************************************************/
+
+/*
+ * Callback filter flags for use with standard apps.
+ */
+
+#define     CBF_FAIL_SELFCONNECTIONS     0x00001000
+#define     CBF_FAIL_CONNECTIONS         0x00002000
+#define     CBF_FAIL_ADVISES             0x00004000
+#define     CBF_FAIL_EXECUTES            0x00008000
+#define     CBF_FAIL_POKES               0x00010000
+#define     CBF_FAIL_REQUESTS            0x00020000
+#define     CBF_FAIL_ALLSVRXACTIONS      0x0003f000
+
+#define     CBF_SKIP_CONNECT_CONFIRMS    0x00040000
+#define     CBF_SKIP_REGISTRATIONS       0x00080000
+#define     CBF_SKIP_UNREGISTRATIONS     0x00100000
+#define     CBF_SKIP_DISCONNECTS         0x00200000
+#define     CBF_SKIP_ALLNOTIFICATIONS    0x003c0000
+
+/*
+ * Application command flags
+ */
+#define     APPCMD_CLIENTONLY            0x00000010L
+#define     APPCMD_FILTERINITS           0x00000020L
+#define     APPCMD_MASK                  0x00000FF0L
+
+/*
+ * Application classification flags
+ */
+
+#define     APPCLASS_STANDARD            0x00000000L
+#define     APPCLASS_MONITOR             0x00000001L
+#define     APPCLASS_MASK                0x0000000FL
+
+/*
+ * Callback filter flags for use with MONITOR apps - 0 implies no monitor
+ * callbacks.
+ */
+#define     MF_HSZ_INFO                  0x01000000
+#define     MF_SENDMSGS                  0x02000000
+#define     MF_POSTMSGS                  0x04000000
+#define     MF_CALLBACKS                 0x08000000
+#define     MF_ERRORS                    0x10000000
+#define     MF_LINKS                     0x20000000
+#define     MF_CONV                      0x40000000
+
+#define     MF_MASK                      0xFF000000
+
+/*
+ *	DdeNameService service name flags
+ */
+
+#define     DNS_REGISTER		 0x0001
+#define     DNS_UNREGISTER		 0x0002
+#define     DNS_FILTERON		 0x0004
+#define     DNS_FILTEROFF         	 0x0008
+
+
+/****************************************************
+
+      End of Flags section
+
+****************************************************/
+
+/****************************************************
+
+      Return Codes section again copied from SDK as must be same
+
+*****************************************************/
+
+#define     DMLERR_NO_ERROR                    0       /* must be 0 */
+
+#define     DMLERR_FIRST                       0x4000
+
+#define     DMLERR_ADVACKTIMEOUT               0x4000
+#define     DMLERR_BUSY                        0x4001
+#define     DMLERR_DATAACKTIMEOUT              0x4002
+#define     DMLERR_DLL_NOT_INITIALIZED         0x4003
+#define     DMLERR_DLL_USAGE                   0x4004
+#define     DMLERR_EXECACKTIMEOUT              0x4005
+#define     DMLERR_INVALIDPARAMETER            0x4006
+#define     DMLERR_LOW_MEMORY                  0x4007
+#define     DMLERR_MEMORY_ERROR                0x4008
+#define     DMLERR_NOTPROCESSED                0x4009
+#define     DMLERR_NO_CONV_ESTABLISHED         0x400a
+#define     DMLERR_POKEACKTIMEOUT              0x400b
+#define     DMLERR_POSTMSG_FAILED              0x400c
+#define     DMLERR_REENTRANCY                  0x400d
+#define     DMLERR_SERVER_DIED                 0x400e
+#define     DMLERR_SYS_ERROR                   0x400f
+#define     DMLERR_UNADVACKTIMEOUT             0x4010
+#define     DMLERR_UNFOUND_QUEUE_ID            0x4011
+
+#define     DMLERR_LAST                        0x4011
+
+/*****************************************************
+
+      End of Return Codes and Microsoft section
+
+******************************************************/
+
+
 
 typedef DWORD HCONVLIST;
 typedef DWORD HCONV;
 typedef DWORD HSZ;
 typedef DWORD HDDEDATA;
+typedef CHAR *LPTSTR;
 
 typedef HDDEDATA (CALLBACK *PFNCALLBACK16)(UINT16,UINT16,HCONV,HSZ,HSZ,
                                            HDDEDATA,DWORD,DWORD);
@@ -28,6 +136,12 @@
                                            HDDEDATA,DWORD,DWORD);
 DECL_WINELIB_TYPE(PFNCALLBACK)
 
+/***************************************************
+
+	Externally visible data structures
+
+***************************************************/
+
 typedef struct
 {
     UINT16  cb;
@@ -48,6 +162,24 @@
     DWORD   dwSecurity;
 } CONVCONTEXT32, *LPCONVCONTEXT32;
 
+//  Internal data structures
+
+      /*  entry for handle table     */
+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 */
+    LPDWORD            	Instance_id;  // needed to track monitor usage
+    struct DDE_HANDLE_ENTRY    *Next_Entry;
+    PFNCALLBACK32	CallBack;
+    DWORD               CBF_Flags;
+    DWORD               Monitor_flags;
+    UINT32              Txn_count;      // count transactions open to simplify closure
+} DDE_HANDLE_ENTRY;
+
+//            Interface Definitions
+
 DECL_WINELIB_TYPE(CONVCONTEXT)
 DECL_WINELIB_TYPE(LPCONVCONTEXT)