Almost straightforward.
The only catches here are:
long becomes Int32 (or Integer)
char* needs to be passed as Byte() and you will have to convert strings
manually by using Encoding.ASCII.GetBytes(myString + Chr(0))
double* is Double()
short int * is Int16()
double cannot be passed down at all. you can only pass it ByRef and your c++
function will need to be modified or a wrapper written around it.
char as return value stays Char (or Byte can be used)
--
Alex Feinman
---
Visit
http://www.opennetcf.org
"Eric BOUXIROT" <(E-Mail Removed)> wrote in message
news:41494dd4$0$12042$(E-Mail Removed)...
> hi,
>
> i must convert all of these eVC++ prototypes to use with VB.NET....
>
> DLLEXPORT long F_BDO_MessageBoxOK(char *IN_title, char *IN_msg );
> DLLEXPORT long F_BDO_MessageBoxOUINON(char *IN_title, char *IN_msg );
> DLLEXPORT long F_BDO_CalculAXplusB(short int *IN_Tab_entree ,int IN_taille
> ,
> double *OUT_Tab_sortie_freq ,
> double *OUT_Tab_sortie, double IN_A,
> double IN_B, double IN_Te, double OUT_Elt_max[2],
> double OUT_Elt_min[2] );
> DLLEXPORT long F_BDO_determine_A_et_B(int IN_Point1[2] ,int IN_Point2[2]
> ,
> double *OUT_A, double *OUT_B );
> DLLEXPORT long F_BDO_trouve_maximum(short int *IN_Tab_entree ,int
> IN_taille ,
> short int IN_seuil, double IN_A,
> double IN_B, int *OUT_n_max,
> double *OUT_y_max );
> DLLEXPORT long F_BDO_trouve_max_et_min(double *IN_Tab_entree ,int
> IN_taille ,
> double *OUT_max, double *OUT_min);
> DLLEXPORT long F_BDO_conv_lineaire_dbl(double *IN_Tab_entree,int
> IN_taille,
> double *OUT_Tab_sortie);
> DLLEXPORT long F_BDO_conv_dbl_dba(double *IN_Tab_entree,int IN_taille,
> double *OUT_Tab_sortie);
> DLLEXPORT long F_BDO_conv_dbl_dba_bf(double *IN_Tab_entree,double
> *IN_Tab_freq,
> int IN_taille,double *OUT_Tab_sortie);
> DLLEXPORT long F_BDO_trouver_indice_harmonique_roue(double
> *IN_Tab_entree,double *IN_Tab_freq,
> int IN_taille,double freq_theorique,
> double seuil_freq,double seuil_ampl,
> unsigned short int *OUT_Tab_ind_harmonique);
> DLLEXPORT char F_BDO_init(void);
> DLLEXPORT void F_BDO_close(void);
> DLLEXPORT char F_BDO_start(void);
> DLLEXPORT char F_BDO_stop(void);
> DLLEXPORT char F_BDO_getSample(char *pBuf,long *cbDone);
>
> what rules i can apply to correctly convert datas type parameters ?
>
> thank a lot ...
>
>
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