Access Violation

[simmeone]

Hi,

hmmmm ... so my english is so bad, but I try to explane my problem.

-------------------------------

I have write a console application in C++ and I want to import the functions in a Windows App. (I use Win32 API).

The following function works absolute correct in the console but don't works under Win32 API:

void LISTING::list ( char *f_name, char *l_name, char *strt, char *city )
{
if ( first == NULL )
{
first = new usersmatch;
last = first;
}
else
{
last->next = new usersmatch; //here comes the Access Violation from Windows
last = last->next;
}

strcpy ( last->firstname, f_name );
strcpy ( last->lastname, l_name );
strcpy ( last->street, strt );
strcpy ( last->city, city );

last->next = NULL;
}

With the following code I read the user-inputs from a Dialog-Window:

GetDlgItemText ( hwnd, IDC_MAIN_NAME, firstname, sizeof ( firstname ));
func.list ( firstname, ... );

And then, come a big ERROR, but I don't know, what I make wrong ...

Have anybody some ideas ?

ThX for helping

SiM
[sig][/sig]

 

[simmeone]

Sorry I forgot somethink;

here is my class-structure:

----------------------------------

class LISTING
{
struct usermatch
{
char firstname[20];
char lastname[20];
char street[20];
char city[20];

usermatch *next;
} *first, *last;

public:

listing ( );
void list ( char *, char *, char *, char * );
}

Greeting SiM [sig][/sig]