Demo License not working for Borland C++ Builder 4.0

[Boom]

Can anyone tell me why the demo liscense for GDTwain will not work for Borland C++ builder 4.0? I ran the sample code for VB and it worked fine for it. I tried using the function mbstowcs to convert a string of characters to a wide string but still not working?????

Thanks,
Boom

[Loïc]

Hi,

The SetLicenseNumber() method are waiting for an unicode string parameter.
Check you are passing the string key into Unicode format.

IE:

Code: Select all

this->GdViewer1->SetLicenseNumber( (wchar_t *) "LicenseKey");

Best regards,

Loïc Carrère

[Boom]

Hi,

I tried the line of code you recommended but when executing it an exception was raised "External exception C0000029". Any ideas why this exception would be raised?

Thanks,
Boom

[Loïc]

Hi Boom,

This this instead. It is working in BC++ 5, I suggest it will be ok for BC++ 4 too...

Code: Select all

WideString LicenseKey = "YourLicenseKEY";
this->GdViewer1->SetLicenseNumber(LicenseKey);

Best regards,

Loïc Carrère