Declare mailslot functions.

include/winbase.h

@@ -1248,6 +1248,9 @@ HANDLE      WINAPI CreateFileW(LPCWSTR,DWORD,DWORD,LPSECURITY_ATTRIBUTES,DWORD,D
 HANDLE      WINAPI CreateFileMappingA(HANDLE,LPSECURITY_ATTRIBUTES,DWORD,DWORD,DWORD,LPCSTR);
 HANDLE      WINAPI CreateFileMappingW(HANDLE,LPSECURITY_ATTRIBUTES,DWORD,DWORD,DWORD,LPCWSTR);
 #define     CreateFileMapping WINELIB_NAME_AW(CreateFileMapping)
+HANDLE      WINAPI CreateMailslotA(LPCSTR,DWORD,DWORD,LPSECURITY_ATTRIBUTES);
+HANDLE      WINAPI CreateMailslotW(LPCWSTR,DWORD,DWORD,LPSECURITY_ATTRIBUTES);
+#define     CreateMailslot WINELIB_NAME_AW(CreateMailslot)
 HANDLE      WINAPI CreateMutexA(LPSECURITY_ATTRIBUTES,BOOL,LPCSTR);
 HANDLE      WINAPI CreateMutexW(LPSECURITY_ATTRIBUTES,BOOL,LPCWSTR);
 #define     CreateMutex WINELIB_NAME_AW(CreateMutex)
@@ -1379,6 +1382,7 @@ DWORD       WINAPI GetLogicalDrives(void);
 DWORD       WINAPI GetLongPathNameA(LPCSTR,LPSTR,DWORD);
 DWORD       WINAPI GetLongPathNameW(LPCWSTR,LPWSTR,DWORD);
 #define     GetLongPathName WINELIB_NAME_AW(GetLongPathName)
+BOOL        WINAPI GetMailslotInfo(HANDLE,LPDWORD,LPDWORD,LPDWORD,LPDWORD);
 BOOL        WINAPI GetNumberOfEventLogRecords(HANDLE,PDWORD);
 BOOL        WINAPI GetOldestEventLogRecord(HANDLE,PDWORD);
 DWORD       WINAPI GetPriorityClass(HANDLE);
@@ -1543,6 +1547,7 @@ BOOL        WINAPI SetFileTime(HANDLE,const FILETIME*,const FILETIME*,const FILE
 BOOL        WINAPI SetHandleInformation(HANDLE,DWORD,DWORD);
 BOOL        WINAPI SetKernelObjectSecurity(HANDLE,SECURITY_INFORMATION,PSECURITY_DESCRIPTOR);
 BOOL        WINAPI SetLocalTime(const SYSTEMTIME*);
+BOOL        WINAPI SetMailslotInfo(HANDLE,DWORD);
 BOOL        WINAPI SetNamedPipeHandleState(HANDLE,LPDWORD,LPDWORD,LPDWORD);
 BOOL        WINAPI SetPriorityClass(HANDLE,DWORD);
 BOOL        WINAPI SetProcessAffinityMask(HANDLE,DWORD_PTR);