windows 0.38.0

Rust for Windows
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

use super::*;
use bindings::*;
use core::marker::PhantomData;

/// A type representing an agile reference to a COM/WinRT object.
#[repr(transparent)]
#[derive(Clone, PartialEq, Eq)]
pub struct AgileReference<T>(IAgileReference, PhantomData<T>);

impl<T: Interface> AgileReference<T> {
    /// Creates an agile reference to the object.
    pub fn new(object: &T) -> Result<Self> {
        let unknown: &IUnknown = unsafe { std::mem::transmute(object) };
        unsafe { RoGetAgileReference(AGILEREFERENCE_DEFAULT, &T::IID, unknown).map(|reference| Self(reference, Default::default())) }
    }

    /// Retrieves a proxy to the target of the `AgileReference` object that may safely be used within any thread context in which get is called.
    pub fn resolve(&self) -> Result<T> {
        unsafe { self.0.Resolve() }
    }
}

unsafe impl<T: Interface> Send for AgileReference<T> {}
unsafe impl<T: Interface> Sync for AgileReference<T> {}