Have you set ExactSpelling? EntryPointNotFound doesn't have to do with CallingConvention. Are you sure that your sqlite.dll exports its API?
Like I said in my previous mail, I'd suggest using one of the already available and well-tested .NET wrappers. Mike > -----Ursprüngliche Nachricht----- > Von: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Im Auftrag von Ti Ny > Gesendet: Freitag, 28. November 2008 09:54 > An: sqlite-users@sqlite.org > Betreff: Re: [sqlite] sqlite3_open16 fails on Windows Vista 64b > > > It doesn't work even if I set CallingConvention. It fails on > EntryPointNotFound exception. > > Ti Ny > > > From: [EMAIL PROTECTED] > > To: sqlite-users@sqlite.org > > Date: Thu, 27 Nov 2008 19:57:30 +0100 > > Subject: Re: [sqlite] sqlite3_open16 fails on Windows Vista 64b > > > > The given code is correct. The lower-case string is a C# > alias for the > > System.String class. System.Int64 is an opaque 64-bit pointer value. > > > > The code so far is correct. What is missing though is the calling > > convention, which by default is cdecl, but .NET doesn't use > that one > > by default for P/Invoke. It uses stdcall/winapi as the > default calling > > convention. Change the CallingConvention in the DllImport line. > > > > Additionally using CharSet=CharSet.Unicode adds an implicit W as per > > Win32 calling conventions to the function name. Since the > > sqlite3_open16 doesn't have that you need to use ExactSpelling to > > prevent it from adding that W. > > > > Instead of rolling your own P/Invoke wrapper I'd suggest > using one of > > the available .NET wrappers for SQLite. > > > > Mike > > > > > -----Ursprüngliche Nachricht----- > > > Von: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] Im Auftrag von > Sherief N. > > > Farouk > > > Gesendet: Donnerstag, 27. November 2008 18:26 > > > An: 'General Discussion of SQLite Database' > > > Betreff: Re: [sqlite] sqlite3_open16 fails on Windows Vista 64b > > > > > > > I am calling now this: > > > > > > > > [DllImport("sqlite3.dll", CharSet = CharSet.Unicode)] > > > > internal static extern System.Int64 > sqlite3_open16(string > > > > filename, out IntPtr handle); > > > > > > > > I now finds an entry point, but i returned to the > previous error: > > > > An attempt was made to read program in invalid format. > > > > > > > > But now everything is 64bit. > > > > > > > > Ti Ny > > > > > > > > > > No offense, but I'm beginning to believe you don't fully > grasp what > > > you're trying to do. First of all, if DW can't find the > entry point > > > then it's not there. Second, I don't think the CLR type > > > corresponding to the return value of > > > sqlite3_open16 is System.Int64, and I'm not sure what string is > > > (CLR's string type is String, capital S). How about you > upload that > > > DLL of your somewhere, send a link and I wouldn't mind > checking it > > > for you. > > > > > > - Sherief > > > > > > _______________________________________________ > > > sqlite-users mailing list > > > sqlite-users@sqlite.org > > > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > > > > > > _______________________________________________ > > sqlite-users mailing list > > sqlite-users@sqlite.org > > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > _________________________________________________________________ > Explore the seven wonders of the world > http://search.msn.com/results.aspx?q=7+wonders+world&mkt=en-US > &form=QBRE > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
