Finds the active installation of vrclient.dll and initializes it */

unloads vrclient.dll. Any interface pointers from the interface are * invalid after this point */

@brief access specified array element with bounds checking @sa https://json.nlohmann.me/api/basic_json/at/

! @throw parse_error.106 if an array index begins with '0' @throw parse_error.109 if an array index was not a number */

@brief returns a const reverse iterator to the last element @sa https://json.nlohmann.me/api/basic_json/crbegin/

@brief returns a const reverse iterator to one before the first @sa https://json.nlohmann.me/api/basic_json/crend/

! @brief dump a floating-point number Dump a given floating-point number to output stream @a o. Works internally with @a number_buffer.

Enables autostart of OpenVR Advanced Settings.

! For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. For n == 0, returns 1 and sets pow10 := 1. */

Returns the location of the Qt bin directory. Precedence goes to the QT_LOC_VAR_NAME environment variable. If that is set and exists it

@brief getSubjectRate returns the amount of frames before a subject is run again. @param Subject @return Amount of frames before subject is r

! For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached power-of-ten c = f_c * 2^e_c, such that the exponent of the product

! Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. M- and M+ must be normalized and share the same exponent -60 <= e <= -32. */

Initializes OpenVR and calls the relevant manifest functions. The .vrmanifest is used by SteamVR however the exact functiontionality is not documented