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winrt::get_abi function (C++/WinRT)

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A helper function that retrieves a pointer to a C++/WinRT object's underlying IUnknown interface. For more info, and code examples, see Interop between C++/WinRT and the ABI.

Syntax

template <typename T, typename = std::enable_if_t<!std::is_base_of_v<winrt::Windows::Foundation::IUnknown, T>>>
auto get_abi(T const& object) noexcept;

inline void* get_abi(winrt::Windows::Foundation::IUnknown const& object) noexcept;

inline void* get_abi(winrt::hstring const& object) noexcept;

template <typename T>
static auto get_abi(winrt::array_view<T> object) noexcept;

template <typename T>
auto get_abi(winrt::param::async_iterable<T> const& object) noexcept;

template <typename K, typename V>
auto get_abi(winrt::param::async_map_view<K, V> const& object) noexcept;

template <typename T>
auto get_abi(winrt::param::async_vector_view<T> const& object) noexcept;

template <typename T>
auto get_abi(winrt::com_ptr<T> const& object) noexcept;

template <typename T>
auto get_abi(winrt::param::iterable<T> const& object) noexcept;

template <typename K, typename V>
auto get_abi(winrt::param::map<K, V> const& object) noexcept;

template <typename K, typename V>
auto get_abi(winrt::param::map_view<K, V> const& object) noexcept;

template <typename T>
auto get_abi(winrt::param::vector<T> const& object) noexcept;

template <typename T>
auto get_abi(winrt::param::vector_view<T> const& object) noexcept;

Parameters

object The C++/WinRT object whose IUnknown interface pointer to retrieve.

Return value

A pointer to the IUnknown interface of the C++/WinRT object.

Requirements

Minimum supported SDK: Windows SDK version 10.0.17134.0 (Windows 10, version 1803)

Namespace: winrt

Header: %WindowsSdkDir%Include<WindowsTargetPlatformVersion>\cppwinrt\winrt\base.h (included by default)

See also