Definition of vbHvsCodeTeze not included - this the only .h file ? Technically possible to define function signature in the same .c and not in a .h, but not in my best practices if somebody else is supposed to call it...
seems to be along option2 lines. But
http://www.news2news.com/vfp/?article=1#p43 might help you realize it in pure vfp without going to a C-fll.
HTH
thomas
>Here is the Code from the C-header
>maybe you can clear out what the dll expects from here.
>
>
>// hvscode.h
>// Interface fuer hvscode.c
>//
>
>
>#if !defined(HVSCODE_H)
>#define HVSCODE_H
>
>#include <cstdio>
>#include <assert.h>
>#include <malloc.h>
>
>//For VB sKopp 08Mar05
>#include <windows.h>
>
>#if !defined HVSCODEDLL_API
>#define HVSCODEDLL_API __declspec(dllexport)
>#endif
>
>
>/* ------------------------------------------------------------ */
>/* Lokale Definitionen: */
>
>#define HVS_MDB "\\hlg_zellko.mdb"
>
>#define LEN_HAUS_ZUSATZ 8
>
>
>#define MAX_FIELD_NUM 16
>#define MAX_FIELD_LEN 64
>#define MAX_TYPEN 30
>#define MAX_TYP_VERWEISE 200
>#define MAXLEVEL 8
>
>#define LEN_DEPOT_NBR 4
>
>#define FIELD_SEP '\t'
>#define FIELD_SEP_STR "\t"
>
>#define FIELD_EMPTY "_"
>
>#define OK 0
>#define NOK -1
>
>#define LAND_DEU "DEU"
>#define LAND_AUT "AUT"
>
>#define POSTF "POSTFACH"
>
>#define STRLEN(xxx) (sizeof(xxx)-1)
>#define STRSET(to, len, from) { strncpy(to, from, len); to[len] = '\0'; }
>
>
>/* ------------------------------------------------------------ */
>/* Definitions / PreProcessorMacros: */
>
>#ifndef NULL
># define NULL ((void *) 0)
>#endif
>
>#ifdef __STDC__
># define HvsConst const
>#else /*!__STDC__*/
># define HvsConst
>#endif /*!__STDC__*/
>
>/* ------------------------------------------------------------ */
>/* Datentypen: */
>
>/* ------------------------------------------------------------ */
>/* Lokale Datentypen: */
>
>typedef struct {
> int iLen;
> int iAlc;
> char * pszText;
> } String;
>
>#define STRING_INIT { 0, 0, NULL }
>
>//typedef char HvsStr2[2*sizeof(HvsStr)];
>
>typedef struct {
> char * pszLkz;
> char * pszPlz;
> char * pszOrt;
> char * pszStr;
> char * pszZlw;
> char * pszHaus1;
> char * pszZus1;
> char * pszHausN;
> char * pszZusN;
> } HvsKey;
>
>
>typedef unsigned char HvsChr;
>
>typedef enum {
> HvsFalse = 0,
> HvsTrue = 1
> } HvsBool;
>
>typedef enum {
> HvsRcOK = 0, /* Alles OK */
> HvsRcNoFind, /* TEZE nicht gefunden , PLZ o.k. */
> HvsRcNullPlz, /* Codierung KO wegen PLZ ,nächsthöhere PLZ verwendet */
> HvsRcLkzInval, /* Länderkennzeichen ungültig */
> HvsRcVersionError, /* Versionsfehler (PLZ ungleich STR oder leer) */
> HvsRcNYI, /* Funktion gibt's nicht */
> HvsRcPostfach, /* keine Teze wg. Postfach */
> HvsRcOutOfSpace, /* m(re)alloc hat ein Problem! */
> HvsRcOpenFailed, /* Datei nicht gefunden */
> HvsRcSqlError, /* allgemeiner SQL Fehler */
> HvsRcMax /* Kommt nicht vor. Anzahl RCs! */
> } HvsRc;
>
>typedef struct {
> long lRc[HvsRcMax];
> long lLoadStr;
> long lLoadPlz;
> double dLoadsPerSecond;
> long lCalls;
> long lHits;
> long lDupKey;
> long lStdOrt;
> long lStdStr;
> } HvsStats;
>
>typedef struct {
> HvsConst HvsChr * pszLkz;
> HvsConst HvsChr * pszPlz;
> HvsConst HvsChr * pszOrt;
> HvsConst HvsChr * pszStr;
> } HvsAdr;
>
>//sKopp 08Mar2005
>typedef struct {
> LPVOID vbLkz;
> LPVOID vbPlz;
> LPVOID vbOrt;
> LPVOID vbStr;
> } vbHvsAdr;
>
>//sKopp 19Apr2005
>typedef struct {
> char* vgLkz[1+1];
> char* vbPlz[1+1];
> char* vbOrt[1+1];
> char* vbStr[1+1];
> } glHvsAdr;
>
>typedef char HvsLkz[3+1]; // Länderkennzeichen
>typedef char HvsDepot[3+1];
>typedef char HvsStr[50+1];
>typedef char HvsPlz[10+1];
>typedef char HvsOrt[50+1]; //HvsOrt[24+1];
>typedef char HvsZlw[1+1]; /* Zaehlweise */
>typedef char HvsMKnz[1+1]; /* MehrfachKnz */
>typedef char HvsHaus[4+1];
>typedef char HvsZus[1+1];
>typedef char HvsTeze[4+1];
>typedef char HvsVon[6+1];
>typedef char HvsBis[6+1];
>typedef char HvsDepotName[20+1];
>typedef char HvsVersion[4+1];
>typedef char HvsRout[20+1];
>typedef char HvsLevel[5+1];
>typedef char HvsStelle[80+1];
>typedef char HvsKurzt[10+1];
>typedef char HvsStrtype[10+1];
>
>typedef char HvsErrMsg[255];
>typedef char HvsSqlstate[10];
>
>
>typedef struct {
> HvsZlw szZlw;
> HvsHaus szHaus1;
> HvsZus szZus1;
> HvsHaus szHausN;
> HvsZus szZusN;
> } HvsAbs;
>
>typedef struct {
> HvsDepot szDepot;
> HvsDepotName szDepotName;
> HvsTeze szTeze;
> HvsStr szStr;
> HvsHaus szHaus;
> HvsZus szZus;
> HvsPlz szPlz;
> HvsOrt szOrt;
> HvsVon szVon;
> HvsBis szBis;
> HvsZlw szTyp;
> HvsVersion szVersion;
> HvsLkz szLkz;
> HvsErrMsg szErrMsg;
> } HvsCode;
>
>typedef struct {
> HvsRout szRoutine;
> HvsLevel szLevel;
> HvsStelle szStelle;
> HvsKurzt szKurztyp;
> } HvsCodeErw;
>
>typedef struct {
> HvsLkz szLkz;
> HvsStrtype szStrassentyp;
> HvsKurzt szKurztyp;
> int szStrTypNr;
>} HvsTypverweis;
>
>typedef struct {
> int nr;
> HvsStrtype szStrassentyp;
>} HvsTypen;
>
>
>
>typedef struct {
> int iDepot;
> HvsPlz plz;
> HvsDepotName depotName;
> HvsVersion version;
>} HvsDepotItems;
>
>typedef struct {
> HvsSqlstate szSqlState;
> HvsErrMsg szErrMsg;
> int nativeError;
> int wErrMsg;
>} HvsErrorInfo;
>
>/* ------------------------------------------------------------ */
>/* Datentypen: */
>
>#ifdef __cplusplus
>extern "C" {
>#endif /*__cplusplus*/
>
>
>HVSCODEDLL_API HvsRc __stdcall HvsCodeOpen(HvsConst char * pszDir);
>
>HVSCODEDLL_API HvsRc __stdcall HvsCodeTeze(HvsCode * pCode, HvsConst HvsAdr * pAdr);
>
>HVSCODEDLL_API HvsRc __stdcall HvsCodeTezeAnalyze(HvsCode * pCode, HvsCodeErw * pCodeErw , HvsConst HvsAdr * pAdr, int * zugriffe, HvsErrorInfo *err);
>
>HVSCODEDLL_API void __stdcall HvsCodeClose();
>
>HvsRc HvsCodeTezeIntern (HvsCode * pCode, HvsConst HvsAdr * pAdr, HvsErrorInfo *err);
>
>
>#ifdef __cplusplus
>};
>#endif /*__cplusplus*/
>
>#endif
>
