检查何时按下箭头键? [英] Check when arrow keys are pressed?

问题描述

如何检查是否按下了箭头键(不知道，例如右键)?

How can I check if an arrow key (dunno, the right key for example) is pressed?

推荐答案

只需在表单加载时将 KeyPreview 属性设置为 true

Just set the KeyPreview Property to true on Form load

之后您可以使用 KeyDown/KeyPress 事件.

after that you can use the KeyDown / KeyPress event.

    Private Sub main_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyUp
    '40 = ArrowkeyDown 38= ArrowKeyUp
    If Not e.KeyValue = 40 AndAlso Not e.KeyValue = 38 Then Exit Sub
    'Key Down / Up Code
End Sub

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