按住C#WPF密钥 | btnIsRepeat

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问题描述

我在按住键时遇到问题.只需按下按键，一切都会起作用，但是按住按键又如何呢?代码如下:

I have a problem with key held. Everything works when it's just key down but what about key holding? The code looks like this:

private void Window_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Left || e.Key == Key.Right || e.Key == Key.Up || e.Key == Key.Down)
    {
       moveBall(3);
    }
}

感谢您的答复.

推荐答案

WPF KeyEventArgs类具有IsRepeat属性，如果按住该键，则为true.

The WPF KeyEventArgs class has an IsRepeat property which will be true if the key is being held down.

文章示例:

// e is an instance of KeyEventArgs.
// btnIsRepeat is a Button.
if (e.IsRepeat)
{
    btnIsRepeat.Background = Brushes.AliceBlue;
}

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