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winrt::get_activation_factory function template (C++/WinRT)

  • Článek

A helper function that retrieves the activation factory for a specified Windows Runtime class type.

Syntax

template <typename Class, typename Interface = winrt::Windows::Foundation::IActivationFactory>
auto get_activation_factory();

Template parameters

typename Class A Windows Runtime class type whose activation factory to retrieve.

typename Interface An interface implemented by the activation factory.

Return value

A reference to the specified interface of the activation factory for the specified Windows Runtime class type.

Example

auto factory = winrt::get_activation_factory<BankAccountWRC::BankAccount>();
BankAccountWRC::BankAccount account = factory.ActivateInstance<BankAccountWRC::BankAccount>();

using namespace winrt::Windows::Foundation;
...
auto factory = winrt::get_activation_factory<Uri, IUriRuntimeClassFactory>();
Uri account = factory.CreateUri(L"https://www.contoso.com");

using namespace winrt::Windows::Globalization::NumberFormatting;
...
auto factory = winrt::get_activation_factory<CurrencyFormatter, ICurrencyFormatterFactory>();
CurrencyFormatter currency = factory.CreateCurrencyFormatterCode(L"USD");

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