Creating a DB_ENV environment/setting a directory path for db's in Windows

Question

I have a small visual studio 2005 c++ program where I am trying to specify which directory to open my database from. I use db_env_create to create my environment and then I try to use DB_ENV->set_data_dir to set my path but it keeps returning a non 0 number and not setting my path. Did I miss any steps?
Thanks

Answer 1

Here is an example that I tried and it is crashing at the set_cachesize.
I don't set the cachesize it then crashes at the dbenv->open. Any idea why I am crashing? I am using Berkeley version 4.6.21 with Windows xp and visual studio 2005.
Thanks.
int ret;
if ((ret = db_env_create(&dbenv, 0)) != 0)
     cout <<"Error Creating Database " << endl;
     return (1);
if ((ret = dbenv->set_cachesize(dbenv, 0, 64 * 1024, 0)) != 0)
        cout << "Cache size error " << endl;
     dbenv->close(dbenv, 0);
     return (1);
(void)dbenv->set_data_dir(dbenv, "C:\Documents and Settings");
if ((ret = dbenv->open(dbenv, "C:\Documents and Settings\champ\My Documents\Visual  
     Studio 2005\Projects",DB_CREATE | DB_INIT_LOCK | DB_INIT_LOG | 
     DB_INIT_MPOOL | DB_INIT_TXN,0)) != 0)
       cout << "Cache size error " << endl;
       dbenv->close(dbenv, 0);
       return (1);
}