Kyle Burmark wrote:
> I don't think there is a UIntegerin vb.net is there? If so try that for the
> unsigned c++ params. And also try using a StringBuilder for the strings. And
> allocate there space to 260. Do a combo of those things and see what happens.
>
> "JimmyD" wrote:
>
> > Hello,
> > I'm having problems calling a function in an unmanaged C dll using
> > VB.net. The program runs, then tries to execute the following function,
> > and just dies, no error message, even when I use a try/catch. I've used
> > the following two methods:
> >
> > <DllImport("myDLL.DLL")> _
> > Public Shared Function GetSiteKeyAddV2(ByVal easyLicense As Integer,
> > ByVal addOn As Integer, ByVal userpassword As String, ByVal site_code
> > As String, ByVal level As Integer, ByVal options As Integer, ByVal
> > restriction_type As Object, ByVal num_days_or_runs As Object, ByVal
> > license_type As Object, ByVal copies As Integer, ByVal site_key as
> > string) As Integer
> > End Function
> >
> > And
> >
> > Private Declare Function GetSiteKeyAddV2 Lib "myDLL.DLL" ByVal
> > easyLicense As Integer, ByVal addOn As Integer, ByVal userpassword As
> > String, ByVal site_code As String, ByVal level As Integer, ByVal
> > options As Integer, ByVal restriction_type As Object, ByVal
> > num_days_or_runs As Object, ByVal license_type As Object, ByVal copies
> > As Integer, ByVal site_key as string) As Integer
> >
> > Here's the C function definition:
> > int FUNCTYPE GetSiteKeyAddV2(int easyLicense, int addOn, char
> > *userpassword, char *site_code,
> > unsigned long level, unsigned long options,
> > unsigned restriction_type, unsigned num_days_or_runs,
> > unsigned license_type, int copies,
> > char *site_key);
> >
> > Some things I'm concerned about are the unsigned c data types (which
> > I've mapped to vb.net object data types, though I don't know if this is
> > correct), and the fact that site_key returns a string.
> >
> > Any help would be much appreciated, I'm very new to the interop stuff.
> >
> > Thanks -
> > J
> >
> >