1. What OS?
2. No matter the OS, SQLcipher requires its own dll/so/dylib file that replaces sqlite3.dll/so/dylib.
3. Does SQLiteStudio come with a copy of sqlcipher.dll/so/dylib? If yes, you can use it. If no, meaning SQLiteStudio linked SQLcipher statically, then you need to find a copy of sqlcipher.dll/so/dylib for your Pascal program to use. Being a crypto library, it is better to build it yourself.