One convenience function is provided that will start the Memory Validator GUI (if it is not already running), then load the Memory Validator leak tracker into your process and start monitor memory usage.
extern "C" void loadValidatorIntoApplication();
To use this function #include loadValidatorIntoApplication.h into your code.
The source files can be found in the API directory in the Memory Validator install directory.
Just add these files to your project and build.