HoldingRoutedEventArgs 类

  • 参考

定义

命名空间:
Microsoft.UI.Xaml.Input
编辑

为 Holding 事件提供事件数据。

public ref class HoldingRoutedEventArgs sealed : RoutedEventArgs
/// [Windows.Foundation.Metadata.Activatable(65536, "Microsoft.UI.Xaml.WinUIContract")]
/// [Windows.Foundation.Metadata.ContractVersion(Microsoft.UI.Xaml.WinUIContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class HoldingRoutedEventArgs final : RoutedEventArgs
[Windows.Foundation.Metadata.Activatable(65536, "Microsoft.UI.Xaml.WinUIContract")]
[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.WinUIContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class HoldingRoutedEventArgs : RoutedEventArgs
Public NotInheritable Class HoldingRoutedEventArgs
Inherits RoutedEventArgs
继承
Object Platform::Object IInspectable RoutedEventArgs HoldingRoutedEventArgs
属性
ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

示例

以下代码片段来自基本输入示例的方案 1 - 输入事件。

Scenario1::Scenario1()
{
    InitializeComponent();

    // pointer press/release handlers
    pressedTarget.PointerPressed(this, &Scenario1::target_PointerPressed);
    pressedTarget.PointerReleased(this, &Scenario1::target_PointerReleased);

    // pointer enter/exit handlers
    enterExitTarget.PointerEntered(this, &Scenario1::target_PointerEntered);
    enterExitTarget.PointerExited(this, &Scenario1::target_PointerExited);

    // gesture handlers
    tapTarget.Tapped(this, &Scenario1::target_Tapped);
    tapTarget.DoubleTapped(this, &Scenario1::target_DoubleTapped);

    holdTarget.Holding(this, &Scenario1::target_Holding);
    holdTarget.RightTapped(this, &Scenario1::target_RightTapped);
}

void Scenario1::target_Holding(Windows::Foundation::IInspectable const&, Windows::UI::Xaml::Input::HoldingRoutedEventArgs const& args)
{
    if (args.HoldingState() == Windows::UI::Input::HoldingState::Started)
    {
        holdTarget.Background(Windows::UI::Xaml::Media::SolidColorBrush(Windows::UI::Colors::DeepSkyBlue()));
        holdTargetText.Text(L"Holding");
    }
    else if (args.HoldingState() == Windows::UI::Input::HoldingState::Completed)
    {
        holdTarget.Background(Windows::UI::Xaml::Media::SolidColorBrush(Windows::UI::Colors::LightGray()));
        holdTargetText.Text(L"Held");
    }
    else
    {
        holdTarget.Background(Windows::UI::Xaml::Media::SolidColorBrush(Windows::UI::Colors::LightGray()));
        holdTargetText.Text(L"Hold Canceled");
    }
}

Scenario1::Scenario1()
{
    InitializeComponent();

    // pointer press/release handlers
    pressedTarget->PointerPressed += ref new PointerEventHandler(this, &Scenario1::target_PointerPressed);
    pressedTarget->PointerReleased += ref new PointerEventHandler(this, &Scenario1::target_PointerReleased);

    // pointer enter/exit handlers
    enterExitTarget->PointerEntered += ref new PointerEventHandler(this, &Scenario1::target_PointerEntered);
    enterExitTarget->PointerExited += ref new PointerEventHandler(this, &Scenario1::target_PointerExited);

    // gesture handlers
    tapTarget->Tapped += ref new TappedEventHandler(this, &Scenario1::target_Tapped);
    tapTarget->DoubleTapped += ref new DoubleTappedEventHandler(this, &Scenario1::target_DoubleTapped);

    holdTarget->Holding += ref new HoldingEventHandler(this, &Scenario1::target_Holding);
    holdTarget->RightTapped += ref new RightTappedEventHandler(this, &Scenario1::target_RightTapped);
}

void Scenario1::target_Holding(Object^ sender, HoldingRoutedEventArgs^ e)
{
    if (e->HoldingState == Windows::UI::Input::HoldingState::Started)
    {
        holdTarget->Background = ref new SolidColorBrush(Windows::UI::Colors::DeepSkyBlue);
        holdTargetText->Text = "Holding";
    }
    else if (e->HoldingState == Windows::UI::Input::HoldingState::Completed)
    {
        holdTarget->Background = ref new SolidColorBrush(Windows::UI::Colors::LightGray);
        holdTargetText->Text = "Held";
    }
    else
    {
        holdTarget->Background = ref new SolidColorBrush(Windows::UI::Colors::LightGray);
        holdTargetText->Text = "Hold Canceled";
    }
}

public Scenario1()
{
    this.InitializeComponent();

    // pointer press/release handlers
    pressedTarget.PointerPressed += new PointerEventHandler(target_PointerPressed);
    pressedTarget.PointerReleased += new PointerEventHandler(target_PointerReleased);

    // pointer enter/exit handlers
    enterExitTarget.PointerEntered += new PointerEventHandler(target_PointerEntered);
    enterExitTarget.PointerExited += new PointerEventHandler(target_PointerExited);

    // gesture handlers
    tapTarget.Tapped += new TappedEventHandler(target_Tapped);
    tapTarget.DoubleTapped += new DoubleTappedEventHandler(target_DoubleTapped);
    holdTarget.Holding += new HoldingEventHandler(target_Holding);
    holdTarget.RightTapped += new RightTappedEventHandler(target_RightTapped);
}

void target_Holding(object sender, HoldingRoutedEventArgs e)
{
    if (e.HoldingState == Windows.UI.Input.HoldingState.Started)
    {
        holdTarget.Background = new SolidColorBrush(Windows.UI.Colors.DeepSkyBlue);
        holdTargetText.Text = "Holding";
    }
    else if (e.HoldingState == Windows.UI.Input.HoldingState.Completed)
    {
        holdTarget.Background = new SolidColorBrush(Windows.UI.Colors.LightGray);
        holdTargetText.Text = "Held";
    }
    else
    {
        holdTarget.Background = new SolidColorBrush(Windows.UI.Colors.LightGray);
        holdTargetText.Text = "Hold Canceled";
    }
}

注解

每当在对象上按下并按住手指、笔或类似的指针设备时，将发送 Holding 事件。

经过短时间阈值后，事件将发送 Started 类型的 HoldingState。

当设备在保持事件) 后 (提升时，另一个 Holding 事件将发送类型为 Completed 的 HoldingState。

如果用户在启动后、完成之前取消了保留，则会发送 Hold 事件，并发送类型为 Canceled 的 HoldingState。

构造函数

HoldingRoutedEventArgs()

初始化 HoldingRoutedEventArgs 类的新实例。

属性

Handled

获取或设置一个值，该值将路由事件标记为已处理。 true的值Handled阻止事件路由中的大多数处理程序再次处理同一事件。
HoldingState

获取交互的基础 HoldingState 。
OriginalSource

获取对引发事件的 对象的引用。 这通常是控件的模板部分，而不是在应用 UI 中声明的元素。

(继承自 RoutedEventArgs)
PointerDeviceType

获取启动关联输入事件的指针设备的 PointerDeviceType 。

方法

GetPosition(UIElement)

返回指针位置的 x 坐标和 y 坐标，可以选择根据提供的 UIElement 的坐标原点计算。

适用于

另请参阅