通过

CoreComponentInputSource.KeyDown 事件

  • 参考

定义

命名空间:
Windows.UI.Core
编辑

为当前活动托管的 XAML 元素按下某个键时引发。

// Register
event_token KeyDown(TypedEventHandler<IInspectable, KeyEventArgs const&> const& handler) const;

// Revoke with event_token
void KeyDown(event_token const* cookie) const;

// Revoke with event_revoker
CoreComponentInputSource::KeyDown_revoker KeyDown(auto_revoke_t, TypedEventHandler<IInspectable, KeyEventArgs const&> const& handler) const;
public event TypedEventHandler<object,KeyEventArgs> KeyDown;
function onKeyDown(eventArgs) { /* Your code */ }
coreComponentInputSource.addEventListener("keydown", onKeyDown);
coreComponentInputSource.removeEventListener("keydown", onKeyDown);
- or -
coreComponentInputSource.onkeydown = onKeyDown;
Public Custom Event KeyDown As TypedEventHandler(Of Object, KeyEventArgs)

事件类型

TypedEventHandler<Object,KeyEventArgs>

TypedEventHandler<IInspectable,KeyEventArgs>

适用于