Finds the active installation of the VR API and initializes it. The provided path must be absolute
or relative to the current working directory. These are the local install versions of the equivalent
functions in steamvr.h and will work without a local Steam install.
This path is to the "root" of the VR API install. That's the directory with
the "drivers" directory and a platform (i.e. "win32") directory in it, not the directory with the DLL itself.
Finds the active installation of the VR API and initializes it. The provided path must be absolute or relative to the current working directory. These are the local install versions of the equivalent functions in steamvr.h and will work without a local Steam install.
This path is to the "root" of the VR API install. That's the directory with the "drivers" directory and a platform (i.e. "win32") directory in it, not the directory with the DLL itself.
pStartupInfo is reserved for future use.