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' defines and structures
Const JOY_BUTTON1 = &H1
Const JOY_BUTTON2 = &H2
Const JOY_BUTTON3 = &H4
Const JOY_BUTTON4 = &H8
Const JOYERR_BASE = 160
Const JOYERR_NOERROR = (0)
Const JOYERR_NOCANDO = (JOYERR_BASE + 6)
Const JOYERR_PARMS = (JOYERR_BASE + 5)
Const JOYERR_UNPLUGGED = (JOYERR_BASE + 7)
Const MAXPNAMELEN = 32
Const JOYSTICKID1 = 0
Const JOYSTICKID2 = 1

Private Type JOYINFO
X As Long
Y As Long
Z As Long
Buttons As Long
End Type
Private Type JOYCAPS
wMid As Integer
wPid As Integer
szPname As String * MAXPNAMELEN
wXmin As Long
wXmax As Long
wYmin As Long
wYmax As Long
wZmin As Long
wZmax As Long
wNumButtons As Long
wPeriodMin As Long
wPeriodMax As Long
End Type

Private Declare Function joyGetDevCaps Lib "winmm.dll" Alias "joyGetDevCapsA" (ByVal id As Long, lpCaps As JOYCAPS, ByVal uSize As Long) As Long
Private Declare Function joyGetNumDevs Lib "winmm.dll" () As Long
Private Declare Function joyGetPos Lib "winmm.dll" (ByVal uJoyID As Long, pji As JOYINFO) As Long
Private Function GetJoystick(ByVal joy As Integer, JI As JOYINFO) As Boolean
If joyGetPos(joy, JI) <> JOYERR_NOERROR Then
     GetJoystick = False
Else
     GetJoystick = True
End If
End Function
' If IsConnected is False then it returns the number of
' joysticks the driver supports. (But may not be connected)
'
' If IsConnected is True the it returns the number of
' joysticks present and connected.
'
' IsConnected is true by default.
Private Function IsJoyPresent(Optional IsConnected As Variant) As Long
Dim ic As Boolean
Dim i As Long
Dim j As Long
Dim ret As Long
Dim JI As JOYINFO

ic = IIf(IsMissing(IsConnected), True, CBool(IsConnected))

i = joyGetNumDevs

If ic Then
     j = 0
     Do While i > 0
         i = i - 1 'Joysticks id's are 0 and 1
         If joyGetPos(i, JI) = JOYERR_NOERROR Then
            j = j + 1
         End If
     Loop

     IsJoyPresent = j
Else
     IsJoyPresent = i
End If

End Function
' Fills the ji structure with the minimum x, y, and z
' coordinates. Buttons is filled with the number of
' buttons.
Private Function GetJoyMin(ByVal joy As Integer, JI As JOYINFO) As Boolean
Dim jc As JOYCAPS

If joyGetDevCaps(joy, jc, Len(jc)) <> JOYERR_NOERROR Then
     GetJoyMin = False
    
Else
     JI.X = jc.wXmin
     JI.Y = jc.wYmin
     JI.Z = jc.wZmin
     JI.Buttons = jc.wNumButtons

     GetJoyMin = True
End If
End Function
' Fills the ji structure with the maximum x, y, and z
' coordinates. Buttons is filled with the number of
' buttons.
Private Function GetJoyMax(ByVal joy As Integer, JI As JOYINFO) As Boolean
Dim jc As JOYCAPS
If joyGetDevCaps(joy, jc, Len(jc)) <> JOYERR_NOERROR Then
     GetJoyMax = False
Else
     JI.X = jc.wXmax
     JI.Y = jc.wYmax
     JI.Z = jc.wZmax
     JI.Buttons = jc.wNumButtons
     GetJoyMax = True
End If
End Function
Private Sub Form_Paint()
    'KPD-Team 1999
    'URL: http://www.allapi.net/
    'E-Mail: KPDTeam@Allapi.net
    Dim JInfo As JOYINFO
    'Clear the form
    Me.Cls
    'Print the information to the form
    Me.Print "Number of joysticks the driver supports:" + Str$(IsJoyPresent(False))
    Me.Print "Number of connected joysticks:" + Str$(IsJoyPresent(True))
    GetJoystick JOYSTICKID1, JInfo
    Me.Print "Number of buttons:" + Str$(JInfo.Buttons)
    GetJoyMax JOYSTICKID1, JInfo
    Me.Print "Max X:" + Str$(JInfo.X)
    Me.Print "Max Y:" + Str$(JInfo.Y)
    Me.Print "Max Z:" + Str$(JInfo.Z)
    GetJoyMin JOYSTICKID1, JInfo
    Me.Print "Min X:" + Str$(JInfo.X)
    Me.Print "Min Y:" + Str$(JInfo.Y)
    Me.Print "Min Z:" + Str$(JInfo.Z)
End Sub


 
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