感谢您的回答
那个之前用过了，但点击up键后button的KEYDOWN事件根本不响应。现在就是不知道有什么方法捕获到up键的动作

[解决办法]
Private Sub Button1_PreviewKeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.PreviewKeyDownEventArgs) Handles Button1.PreviewKeyDown
If e.KeyData = Keys.Up Then
e.IsInputKey = True

'OnFunctionKeyPressed(New FKeyEventArgs(FKeys.ShiftDel))
Exit Sub

End If
End Sub

这样，再不好使我就没办法了
记得formload里一定要有 Me.KeyPreview = True