windows 0.19.0

Rust for Windows
Documentation 
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use super::*;

/// A trait for retrieving the implementation behind a COM or WinRT interface.
///
/// This trait is automatically implemented when using the [`implement`] macro but
/// is considered unsafe since different implementations of the `from` interface
// may exist.
pub trait ToImpl<T: Interface> {
    /// # Safety
    #[allow(clippy::mut_from_ref)]
    unsafe fn to_impl(from: &T) -> &mut Self;
}