Re: COM library corrupting c++ exception mechanism

Hi,

I have a COM library which I want to use in a WTL project. My program is
working just fine, but when I create a COM object, my c++ exceptions stop
working. As long as no exceptions are thrown the program keeps running but
when an exception is thrown, it doesn't get caught and my application
closes in no time.

Here's the piece of code I wrote to use the COM object. I'm fairly new to
c++ COM programming so I guess I'm doing something wrong.

IicgenPtr pcg5( __uuidof(icgen) );

pcg5->PutSiteCode( sitecode );
pcg5->PutProgramID( progid );
pcg5->PutFeatures( features );

if( !pcg5->V5_CalculateActivationCode() ) {
   _bstr_t act = pcg5->GetActivationCode();
   if( (char*) act != NULL) {
       strcpy( unlock, (char*) act );
   }
   else {
       strcpy( unlock, "" );
   }
}

IicgenPtr is autogenerated by Visual Studio 2005's #import. All variables
are array's of appropriate length. All strings are NULL-terminated.The
result I'm getting in unlock is correct.

Is there anybody who can point me in the right direction?
Thanks in advance,

Merijn Vandenabeele