VB数字信号处理

Question

有没有通过VB程序读取数字信号的方法?

遥控器通过USB连接到pc。当有人按下遥控器上的按钮时，USB将捕获信号，VB程序将读取该信号。换句话说，当按下远程键时，VB程序应该能够感应到USB记录的信号。

请让我知道是否有任何API或其他机制在Visual Basic实现这一点。

Answer 1

您可以使用服务器作为存储来保存机器的按键

按下按钮的机器:

Public Class Form1
    Private Sub Form1_KeyPress(sender As Object, e As KeyPressEventArgs) Handles From1.KeyPress
        Dim FS As New IO.FileStream("file", IO.Filemode.Create)
        Dim SW As New IO.StreamWriter(FS)
        SW.Write(e.keyCode)
        SW.Close()
        FS.Close()
        My.Computer.Network.UploadFile("file", "domain.com/file", "ftpusername", "ftppassword")
    End Sub
End Class

在其他机器上:

Public Class Form1
    Private Timer1 as New Timer
    Private Sub Form1_Load(sender As Object, e As Eventargs) Handles MyBase.Load
        Timer1.Interval = 1
        Timer1.Start()
    End Sub
    Private Sub Timer1_Tick(sender As Object, e As Eventargs)
        My.Computer.Network.DownloadFile("domain.com/file", "file", "ftpusername", "ftppassword")
        Dim KeyCode = IO.File.ReadAllText("file");
        'Do Stuff...
    End Sub
End Class

希望这对你有帮助!