BUG: Handler Function Prototypes Incorrect for C++ |
Q104715
The information in this article applies to:
- Microsoft SQL Server Programmer's Toolkit, version 4.2
BUG# 9383 (4.2.5)
SYMPTOMS
Attempting to compile a C++ DB-Library application for Microsoft Windows NT generates the following compiler errors when either the Win32 SDK or Visual C++ for Windows NT is used:
error C2664: 'dberrhandle' : cannot convert parameter 1 from
'int (void *,int ,int ,int ,char *,char *)' to
'int (__cdecl *)(void )'
error C2664: 'dbmsghandle' : cannot convert parameter 1 from
'int (void *,long ,int ,int ,char *)' to
'int (__cdecl *)(void )'
CAUSE
The DBNTWIN32 section of the SQLDB.H header file declares the dberrhandle and dbmsghandle functions improperly for C++.
WORKAROUND
In the DBNTWIN32 section of SQLDB.H, change the following line (line 628 in the SQLDB.H file dated 8/24/93) from:
typedef int (SQLAPI *SQLFARPROC)();
to the following:
typedef int (SQLAPI *SQLERRPROC)(DBPROCESS *,INT,INT,INT,CHAR *,CHAR *); typedef int (SQLAPI *SQLMSGPROC)(DBPROCESS *,DBINT,INT,INT,CHAR *);
Also in the DBNTWIN32 section of SQLDB.H, change the following lines (lines 633 and 634 in the SQLDB.H file dated 8/24/93) from:
SQLAPI dberrhandle(SQLFARPROC); SQLAPI dbmsghandle(SQLFARPROC);
to the following:
SQLAPI dberrhandle(SQLERRPROC); SQLAPI dbmsghandle(SQLMSGPROC);
STATUS
Microsoft has confirmed this to be a problem in DB-Library version 4.20.50. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.
Additional query words: dblib
Keywords : kbprogramming
Issue type :
Technology : kbSQLServSearch kbAudDeveloper kbSQLServPTK420
Last Reviewed: March 18, 1999 |