Buzzing in!!!!

[Kerlfop]

I am making a Jeopardy game for my VB class and was needing some basic code. I need to allow for multiple players to be able to buzz in to answer the question. I figure it could be by pressing one of three keys. Any suggestion?

Bob

[Sastraxi]

Okay... I will refer to these functions in my code:

PlaySnd - a function that plays a sound
HndBuzz - the function that handles the buzz (what happens when a player buzzes)

Okey! Lets see the code, it's commented so you can learn from it:

Const Player1=vbKeyA 'Player 1's buzz-in key
Const Player2=vbKeyB 'Player 2's buzz-in key
Const Player3=vbKeyC 'Player 3's buzz-in key

Dim PlayerBuzz as Long

Private Sub Form_KeyDown(vb declarations, just here to tell you which sub it's in)
   PlayerBuzz=keycode 'puts the keystoke into the variable so we can read it in another sub

End Sub

Sub SeeIfBuzz() 'user-sub: call it when you want to check if there's a buzz-in.

   If PlayerBuzz <> 0 Then
      If PlayerBuzz = Player1 Then
         HndBuzz 1 'call the handling funct. for buzzing for player 1
      ElseIf PlayerBuzz = Player2 Then
         HndBuzz 2 'call the funct. for p 2
      ElseIf PlayerBuzz = Player3 Then
         HndBuzz 3 'once again, call funct for p 3
   End If

End Sub

(here's an example of how to use this code:)

Private Sub Timer1_Timer()
   SeeIfBuzz
   '... other game code here...
End Sub

I can post more if you want, this is just to handle the buzz. I made it easy to change key configs, you just change the keys of player1, player2, and player3 consts accordingly.

Just some humor here, ya know what would be funny? Setting the keys to CTRL, ALT and DELETE.

-just a bit of my humor, DONT do that.

I'm only an email away - Sastraxi

[creamPuff]

knock, knock,... i just found this thread and im having same difficulties, can you please elaborate more so it would be easy for me to understand this code, thanks soo much!

[Sastraxi]

Wow... what an old thread. You're lucky I'm still around

Anyway, I wouldn't recommend this approach anymore; use the GetAsyncKeyState API instead. Here's some updated code

Private Declare Function GetAsyncKeyState Lib "user32" Alias "GetAsyncKeyState" (ByVal vKey As Long) As Integer
 
Private Const VK_CONTROL = &H11
Private Const VK_SPACE = &H20
Private Const VK_NUMPAD0 = &H60
 
Const Player1 = VK_CONTROL 'Player 1's buzz-in key
Const Player2 = VK_SPACE 'Player 2's buzz-in key
Const Player3 = VK_NUMPAD0 'Player 3's buzz-in key
 
Private bStop As Boolean 'Set this to True when the question has been answered
 
Private Sub QuestionAnswerPeriod()
'call this when you have asked a question
 
    bStop = False
    Do While Not bStop
        DoEvents
        If GetAsyncKeyState(Player1) And 1 Then
            ... what you want to do to ask them (for player #1)
        ElseIf GetAsyncKeyState(Player2) And 1 Then
            ... what you want to do to ask them (for player #2)
        ElseIf GetAsyncKeyState(Player3) And 1 Then
            ... what you want to do to ask them (for player #3)
        End If
    Loop
 
End Sub

Hope it helps...