// Example 1: Initializing an nsCOMPtr object with a XPCOM object nsCOMPtrIn the above examples, `nsIInterface` is an interface provided by XPCOM, and `myObject` is a XPCOM object that implements `nsIInterface`. The package library for nsCOMPtr would be the Mozilla toolkit, as it is a part of the toolkit's C++ code.myInterface = do_QueryInterface(myObject); // Example 2: Assigning an nsCOMPtr object to another nsCOMPtr object nsCOMPtr myInterfaceCopy = myInterface; // Example 3: Using an nsCOMPtr object to access a XPCOM object's functions myInterface->MyFunction();