In which directory is your UDF-Library located? Which version of IB do you
use?

Thomas

> -----Ursprungliche Nachricht-----
> Von: Chris Hulsey [mailto:chulsey@...]
> Gesendet: Freitag, 02. Februar 2001 23:58
> An: ibObjects@yahoogroups.com
> Betreff: [IBO] C++ with IBObjects and Interbase UDF's
>
>
> Hello,
>
> I created a DLL with C++ Builder, and I included VCL and IBObjects within
> the DLL project. After successfully creating the DLL I then
> copied the file
> over to the station where the Interbase Server resides. I believe that I
> created the DLL properly with respect to external calls from other
> applications.
>
> Next using ISQL I created the UDF to point to this new DLL. I
> believe that
> the path and syntax for the UDF were correct and that there was no problem
> at this point. Later I tried to test the UDF using a simple SELECT
> statement but all I get is the following message:
>
> "Function APP_IMAGE is not defined (but it is). entry_ point or
> module_name could not be found."
>
> Is this a problem because I created the DLL with C++ rather than using the
> API and regular old "C". When creating the project I used the "C"
> conventions though. What in the world is going on here?? HELP???
>
> Here is sample code of my DLL project for file SalonDll.dll:
>
> //----------------------------------------------------------------
> ----------
>
> #include <vcl.h>
> #include <windows.h>
> #pragma hdrstop
>
> #include <Classes.hpp>
> #include <Controls.hpp>
> #include <StdCtrls.hpp>
> #include <Forms.hpp>
> #include "IB_Components.hpp"
>
> #pragma package(smart_init)
> #pragma link "IB_Components"
>
> extern "C" __declspec(dllexport) long UpdateImageFile(long *,long *,long
> *,long *,long *,long *,long *,long *);
>
> #pragma argsused
> int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void*
> lpReserved)
> {
> return 1;
> }
>
> // Update Appointment Image File
> long UpdateImageFile(long *Employee ,long *Elapsed_Days,long *Client_ID
> ,long *Service_ID,
> long *Client_Type,long *Start_Time ,long
> *Process_Time,long *Internet)
> {
> TIB_Database *IB_Database;
> TIB_Query *IB_Query;
> long Britney_Spears_Age=19;
> ...
> ...
> ...
> ...
> ...
>
> return Britney_Spears_Age;
> }
> //------------------------------------------------------------------------
>
> Here is a sample of my UDF when declaring in ISQL on Interbase Server:
>
> DECLARE EXTERNAL FUNCTION APP_IMAGE
> INTEGER, INTEGER, INTEGER, INTEGER, INTEGER, INTEGER,
> INTEGER, INTEGER
> RETURNS INTEGER BY VALUE
> ENTRY_POINT 'UpdateImageFile' MODULE_NAME 'SalonDll';
>
> Here is a sample of my SELECT statement:
>
> SELECT * FROM APP_REL_FILE WHERE ID > APP_IMAGE(1,2,3,4,5,6,7,8)
>
> This is the Error:
>
> "Function APP_IMAGE is not defined"
> "- entry_ point or module_name could not be found."
>
> I would appreciate any response. Thank you for your time.
>
> Chris Hulsey
> Visible Changes, Inc.
> chris@...
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
>