[fpc-pascal] Cannot use SQLite 64 bit dll
pascaldragon at googlemail.com
Sat Oct 20 13:19:53 CEST 2018
Am 19.10.2018 um 19:22 schrieb Dennis:
> Using Lazarus and FPC and sqlite3conn unit, I can use the sqlite3.dll
> on windows without problem.
> However, when I try to convert my project to win 64, it just fail
> without any warning.
> I am using
> FPC 3.1.1 Revision 63034
> Lazarus 1.9.0
> both are Win64
> I download the win 64 bit version of sqlite3.dll from
> and place it in the same folder as my exe.
> The project compiles without errors nor warning.
> But when I run the exe, it just waits a few seconds and then quits
> I tried debugging it and set breakpoints at all of the following in
> function TryInitializeSqlite(const LibraryName: UnicodeString): Integer;
> function InitialiseSQLite:integer;
> function InitializeSQLiteANSI(const LibraryName: AnsiString):integer;
> function InitializeSQLite(const LibraryName: UnicodeString) :integer;
> function InitialiseSQLite(const LibraryName: UnicodeString):integer;
> and the following in SQLite3Conn:
> class function TSQLite3ConnectionDef.DefaultLibraryName: string;
> class function TSQLite3ConnectionDef.LoadedLibraryName: string;
> class function TSQLite3ConnectionDef.LoadFunction: TLibraryLoadFunction;
> However, the debugger did not stop at all at any of them.
> What could possibly be the cause of the problem?
A simple test here with a SQLite3Connection works without problems.
Do you get an exception if the library is *not* located in the same
folder? In that case it loaded correctly and something else must be the
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