CoreIndependentInputSource クラス

定義

public ref class CoreIndependentInputSource sealed : ICoreInputSourceBase, ICorePointerInputSource

public ref class CoreIndependentInputSource sealed : ICoreInputSourceBase, ICorePointerInputSource2

public ref class CoreIndependentInputSource sealed : ICoreInputSourceBase, ICorePointerInputSource2, ICorePointerRedirector

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class CoreIndependentInputSource final : ICoreInputSourceBase, ICorePointerInputSource

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class CoreIndependentInputSource final : ICoreInputSourceBase, ICorePointerInputSource2

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class CoreIndependentInputSource final : ICoreInputSourceBase, ICorePointerInputSource2, ICorePointerRedirector

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class CoreIndependentInputSource : ICoreInputSourceBase, ICorePointerInputSource

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class CoreIndependentInputSource : ICoreInputSourceBase, ICorePointerInputSource2

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class CoreIndependentInputSource : ICoreInputSourceBase, ICorePointerInputSource2, ICorePointerRedirector

Public NotInheritable Class CoreIndependentInputSource
Implements ICoreInputSourceBase, ICorePointerInputSource

Public NotInheritable Class CoreIndependentInputSource
Implements ICoreInputSourceBase, ICorePointerInputSource2

Public NotInheritable Class CoreIndependentInputSource
Implements ICoreInputSourceBase, ICorePointerInputSource2, ICorePointerRedirector

継承

Object Platform::Object IInspectable CoreIndependentInputSource

属性

ContractVersionAttribute MarshalingBehaviorAttribute

実装

ICoreInputSourceBase ICorePointerInputSource ICorePointerInputSource2 ICorePointerRedirector

Windows の要件

例

独立した入力を初期化しています。

// MainPage.cpp
#include "pch.h"
#include "MainPage.h"
#include <winrt/Windows.System.Threading.h>
#include <winrt/Windows.UI.Core.h>
#include <winrt/Windows.UI.Xaml.Controls.h>

using namespace winrt;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Controls;

Windows::Foundation::IAsyncAction m_inputLoopWorker;
...
    // Create a task to register for independent input and begin processing input messages.
    Windows::System::Threading::WorkItemHandler workItemHandler([this](Windows::Foundation::IAsyncAction const& /* action */)
    {
        // The CoreIndependentInputSource will raise pointer events for the specified device types on whichever thread it's created on.
        Windows::UI::Core::CoreIndependentInputSource coreInput{
            MySwapChainPanel().CreateCoreIndependentInputSource(
                Windows::UI::Core::CoreInputDeviceTypes::Mouse |
                Windows::UI::Core::CoreInputDeviceTypes::Touch |
                Windows::UI::Core::CoreInputDeviceTypes::Pen)
        };

        // Register for pointer events, which will be raised on the background thread.
        coreInput.PointerPressed({ this, &MainPage::SCP_OnPointerPressed });
        coreInput.PointerMoved({ this, &MainPage::SCP_OnPointerMoved });
        coreInput.PointerReleased({ this, &MainPage::SCP_OnPointerReleased });

        // Begin processing input messages as they're delivered.
        coreInput.Dispatcher().ProcessEvents(Windows::UI::Core::CoreProcessEventsOption::ProcessUntilQuit);
    });

    // Run task on a dedicated high priority background thread.
    m_inputLoopWorker = Windows::System::Threading::ThreadPool::RunAsync(
        workItemHandler, Windows::System::Threading::WorkItemPriority::High,
        Windows::System::Threading::WorkItemOptions::TimeSliced);
...
void MainPage::SCP_OnPointerPressed(Windows::Foundation::IInspectable const& /* sender */,
    Windows::UI::Core::PointerEventArgs const& /* args */) {}
void MainPage::SCP_OnPointerMoved(Windows::Foundation::IInspectable const& /* sender */,
    Windows::UI::Core::PointerEventArgs const& /* args */) {}
void MainPage::SCP_OnPointerReleased(Windows::Foundation::IInspectable const& /* sender */,
    Windows::UI::Core::PointerEventArgs const& /* args */) {}

// Create a task to register for independent input and begin processing input messages.
auto workItemHandler = ref new WorkItemHandler([this] (IAsyncAction ^)
{
   // The CoreIndependentInputSource will raise pointer events for the specified device types on whichever thread it's created on.
   CoreIndependentInputSource^ coreInput = CreateCoreIndependentInputSource(
      Windows::UI::Core::CoreInputDeviceTypes::Mouse |
      Windows::UI::Core::CoreInputDeviceTypes::Touch |
      Windows::UI::Core::CoreInputDeviceTypes::Pen
   );

   // Register for pointer events, which will be raised on the background thread.
   coreInput->PointerPressed += ref new TypedEventHandler<Object^, PointerEventArgs^>(this, &MyClass::OnPointerPressed);
   coreInput->PointerMoved += ref new TypedEventHandler<Object^, PointerEventArgs^>(this, &MyClass::OnPointerMoved);
   coreInput->PointerReleased += ref new TypedEventHandler<Object^, PointerEventArgs^>(this, &MyClass::OnPointerReleased);

   // Begin processing input messages as they're delivered.
   coreInput->Dispatcher->ProcessEvents(CoreProcessEventsOption::ProcessUntilQuit);
});

// Run task on a dedicated high priority background thread.
m_inputLoopWorker = ThreadPool::RunAsync(workItemHandler, WorkItemPriority::High, WorkItemOptions::TimeSliced);

CreateCoreIndependentInputSource と CoreIndependentInputSource を使用する方法のコード例については、XAML SwapChainPanel DirectX 相互運用サンプルの一部であるクラス定義を参照してくださいDrawingPanel。

注釈

SwapChainBackgroundPanel.CreateCoreIndependentInputSource または SwapChainPanel.CreateCoreIndependentInputSource を呼び出して、このクラスのインスタンスを作成します。

CoreIndependentInputSource クラスを使用すると、バックグラウンド スレッドで入力処理ロジックを意図的に提供しているため、アプリは XAML UI スレッドとは無関係に入力とレンダリングを処理できます。 UI 以外のスレッドから CreateCoreIndependentInputSource を呼び出す必要があります。そうしないと、 CreateCoreIndependentInputSource メソッドの呼び出しは失敗します。

バージョン履歴

プロパティ

メソッド

イベント

適用対象

こちらもご覧ください

• ICoreInputSourceBase
• ICorePointerInputSource
• SwapChainPanel
• スレッド化と非同期プログラミング