如果按下空格鍵，將觸發WPF MouseEnter事件

Question

我想處理僅用於鼠標操作的按鈕MouseEnter事件。所以我必須檢測是否鼠標或鍵盤觸發MouseEnter。

private void button_onMouseEnter(object sender, MouseEventArgs e) 
{ 
    Button button = (Button)sender; 

    if (!button.IsMouseOver)   return; // not working 
    if (!button.IsMouseDirectlyOver) return; // not working 
    ... 
} 

Answer 1

你可以檢查最新的輸入設備

if (InputManager.Current.MostRecentInputDevice is KeyboardDevice); 

如在這裏討論：

How to tell if a button click event was triggered by keyboard or mouse in WPF?