I have no answer for you (or rather, others here will have better
answers), but I can tell you that this question did in fact come to the
list yesterday.
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From: Bart Smissaert <bart.smissaert at gmail.com>
To: General Discussion of SQLite Database
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Subject: [sqlite] How to code this Std_Call?
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On 2015-03-15 03:17 PM, Bart Smissaert wrote:
> Been working with this project:
> https://sqliteforexcel.codeplex.com/
> and further enhanced that SQLite3_StdCall.dll with more SQLite functions.
> As said before I don't know C, but can work things out by looking at other
> functions.
> Now stuck though on a complex one, sqlite3_create_function.
>
> In the SQLite3_StdCall project, loaded in MS Visual Studio 2013 there is a
> file sqlite3.h, which has this:
>
> int sqlite3_create_function(
> sqlite3 *db,
> const char *zFunctionName,
> int nArg,
> int eTextRep,
> void *pApp,
> void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
> void (*xStep)(sqlite3_context*,int,sqlite3_value**),
> void (*xFinal)(sqlite3_context*)
> );
>
> Then there is the file SQLite3_StdCall.c, which should have something like
> this:
>
> SQLITE3_STDCALL_API int __stdcall sqlite3_create_function(
> sqlite3 *pDb,
> const char *zFunctionName,
> int nArg,
> int eTextRep,
> void *pApp,
> void(*xFunc)(sqlite3_context*, int, sqlite3_value**),
> void(*xStep)(sqlite3_context*, int, sqlite3_value**),
> void(*xFinal)(sqlite3_context*)
> )
> {
> return sqlite3_create_function(
> pDb,
> zFunctionName,
> nArg,
> eTextRep,
> pApp,
> xFunc,
> xStep,
> xFinal);
> }
>
> The problem is with the last 3 void arguments. I don't know how to code
> this in the return section.
> I know this is off-topic, but maybe somebody can shed some light on this.
>
>
> RBS
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> sqlite-users at mailinglists.sqlite.org
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