Can I Call a Class from my main form?

[Joacim Andersson]

It doesn't matter what you call the parameter in the PlaySound method. Since you have you're wave files as resources in your app I thought resourceName was a fitting name. But you need to use it, what you have is this:

Private Sub PlaySound(ByVal C As String)
  My.Computer.Audio.Play(My.Resources.C, AudioPlayMode.Background)
End Sub

That will play the C resource regardless what you pass in since you don't use the string you're passing in: My.Resources.C is only referring to the C resource. My.Resources.ResourceManager.GetStream is used so you can pass in a string with the name of the resource. So for your code to work you should use:

Private Sub PlaySound(ByVal C As String)
  My.Computer.Audio.Play(My.Resources.ResourceManager.GetStream(C), AudioPlayMode.Background)
End Sub

However now the name doesn't make sense. Since you could just as well call PlaySound like this:

PlaySound("D")

So why is the argument named C in this case when you ask it to play the "D"? If you like you can do this:

Private Sub PlaySound(ByVal tone As String)
  My.Computer.Audio.Play(My.Resources.ResourceManager.GetStream(tone), AudioPlayMode.Background)
End Sub

Just name the parameter whatever you like that fits.

[cazado24]

It doesn't matter what you call the parameter in the PlaySound method. Since you have you're wave files as resources in your app I thought resourceName was a fitting name. But you need to use it, what you have is this:

Private Sub PlaySound(ByVal C As String)
  My.Computer.Audio.Play(My.Resources.C, AudioPlayMode.Background)
End Sub

That will play the C resource regardless what you pass in since you don't use the string you're passing in: My.Resources.C is only referring to the C resource. My.Resources.ResourceManager.GetStream is used so you can pass in a string with the name of the resource. So for your code to work you should use:

Private Sub PlaySound(ByVal C As String)
  My.Computer.Audio.Play(My.Resources.ResourceManager.GetStream(C), AudioPlayMode.Background)
End Sub

However now the name doesn't make sense. Since you could just as well call PlaySound like this:

PlaySound("D")

So why is the argument named C in this case when you ask it to play the "D"? If you like you can do this:

Private Sub PlaySound(ByVal tone As String)
  My.Computer.Audio.Play(My.Resources.ResourceManager.GetStream(tone), AudioPlayMode.Background)
End Sub

Just name the parameter whatever you like that fits.

I suppose that the argument is named C because I want it to play the key of C? In my first post on this thread I said that I was trying to get just C to work first, not D.

I changed it back to GetStream and it fails to play C.wav when I click cButton.

Was the second part of the code correct?

Private Sub PlaySound(ByVal C As String)
        My.Computer.Audio.Play(My.Resources.ResourceManager.GetStream(C), AudioPlayMode.Background)
    End Sub

    Private Sub cButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
        PlaySound(CType(sender, Button).Tag.ToString)
    End Sub