通过

InkUnprocessedInput.PointerLost 事件

  • 参考

定义

命名空间:
Windows.UI.Input.Inking
编辑

在 InkCanvas 控件的命中测试或边界区域不再检测到指针时发生。

通常，如果触点移动到 InkCanvas 控件之外，或者由另一个元素捕获该触点，指针将丢失。

// Register
event_token PointerLost(TypedEventHandler<InkUnprocessedInput, PointerEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
InkUnprocessedInput::PointerLost_revoker PointerLost(auto_revoke_t, TypedEventHandler<InkUnprocessedInput, PointerEventArgs const&> const& handler) const;
public event TypedEventHandler<InkUnprocessedInput,PointerEventArgs> PointerLost;
function onPointerLost(eventArgs) { /* Your code */ }
inkUnprocessedInput.addEventListener("pointerlost", onPointerLost);
inkUnprocessedInput.removeEventListener("pointerlost", onPointerLost);
- or -
inkUnprocessedInput.onpointerlost = onPointerLost;
Public Custom Event PointerLost As TypedEventHandler(Of InkUnprocessedInput, PointerEventArgs)

事件类型

TypedEventHandler<InkUnprocessedInput,PointerEventArgs>

适用于

另请参阅