glutin 0.29.1

Cross-platform OpenGL context provider.
Documentation 
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//! Contains traits with platform-specific methods in them.
//!
//! Contains the following modules:
//!
//!  - `android`
//!  - `ios`
//!  - `macos`
//!  - `unix`
//!  - `windows`

/// Platform-specific methods for android.
pub mod android;
/// Platform-specific methods for iOS.
pub mod ios;
/// Platform-specific methods for macOS.
pub mod macos;
/// Platform-specific methods for unix operating systems.
pub mod unix;
/// Platform-specific methods for Windows.
pub mod windows;
/// Platform-specific methods for event loops independent from the application
/// lifetime.
pub mod run_return {
    #![cfg(any(
        target_os = "windows",
        target_os = "macos",
        target_os = "linux",
        target_os = "dragonfly",
        target_os = "freebsd",
        target_os = "netbsd",
        target_os = "openbsd",
        target_os = "android",
    ))]
    pub use winit::platform::run_return::*;
}

use std::os::raw;

/// Platform-specific extensions for OpenGL [`Context`][crate::Context]s.
pub trait ContextTraitExt {
    /// Raw context handle.
    type Handle;

    /// Returns the raw context handle.
    unsafe fn raw_handle(&self) -> Self::Handle;

    /// Returns a pointer to the `EGLDisplay` object of EGL that is used by this
    /// context.
    ///
    /// Return [`None`] if the context doesn't use EGL.
    // The pointer will become invalid when the context is destroyed.
    unsafe fn get_egl_display(&self) -> Option<*const raw::c_void>;
}