rust-webvr 0.2.0

Safe rust API that provides a way to interact with Virtual Reality headsets and integration with vendor specific SDKs like OpenVR and Oculus. The API is inspired on the easy to use WebVR API but adapted to Rust design patterns
Documentation 
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use libloading as lib;
#[cfg(unix)]
use libloading::os::unix::Symbol as Symbol;
#[cfg(windows)]
use libloading::os::windows::Symbol as Symbol;

use super::binding as openvr;

// OpenVR_api.dll entry points
type VRInitInternal = unsafe extern fn(*mut openvr::EVRInitError, openvr::EVRApplicationType) -> isize;
type VRShutdownInternal = unsafe extern fn();
type VRIsHmdPresent = unsafe extern fn() -> bool;
type VRGetGenericInterface = unsafe extern fn(*const ::std::os::raw::c_char, *mut openvr::EVRInitError) -> isize;

pub struct OpenVRLibrary {
    _lib: lib::Library,
    pub init_internal: Symbol<VRInitInternal>,
    pub shutdown_internal: Symbol<VRShutdownInternal>,
    pub is_hmd_present: Symbol<VRIsHmdPresent>,
    pub get_interface: Symbol<VRGetGenericInterface>
}

impl OpenVRLibrary {
    pub unsafe fn new()-> lib::Result<OpenVRLibrary> {
        let lib = try!(lib::Library::new("openvr_api.dll"));
        let init_internal = try!(lib.get::<VRInitInternal>(b"VR_InitInternal\0")).into_raw();
        let shutdown_internal = try!(lib.get::<VRShutdownInternal>(b"VR_ShutdownInternal\0")).into_raw();
        let is_hmd_present = try!(lib.get::<VRIsHmdPresent>(b"VR_IsHmdPresent\0")).into_raw();
        let get_interface = try!(lib.get::<VRGetGenericInterface>(b"VR_GetGenericInterface\0")).into_raw();
        
        Ok(OpenVRLibrary {
            _lib: lib,
            init_internal: init_internal,
            shutdown_internal: shutdown_internal,
            is_hmd_present: is_hmd_present,
            get_interface: get_interface
        })
    }
}