Hi!

I was using a standard windows timer, but it gave an error over 9% on
a win 98 machine with no other programs running!

Bacause of this, I decided to implement windows MultiMedia timer, and
used code examples from msdn and this group. Everything works fine
when I run it from VB, but if I complie and run, I get an error (and
program termination) at the first timer event. (The .exe is ofcause
runned from the same machine as VB.)

I get the error message that '[some memory addresses] memory could not
be "read".'

My code is very, very short. Only the very nessecary rows are left and
still the error occures. (I'm quite new to work with dll's outside
VB.)

This is my code:


========Module1======
Option Explicit

Public Declare Function timeSetEvent Lib "winmm.dll" _
(ByVal uDelay As Long, _
ByVal uResolution As Long, _
ByVal lpTimeProc As Long, _
ByVal dwUser As Long, _
ByVal fuEvent As Long) As Long

Public Declare Function timeKillEvent Lib "winmm.dll" _
(ByVal uTimerID As Long) As Long

Public Const TIME_PERIODIC = 1
Public Const TIME_CALLBACK_FUNCTION = &H0

Public Sub Main()
Form1.Show
End Sub

Public Function TimerProc(ByVal uID As Long, _
ByVal uMsg As Long, _
ByVal dwUser As Long, _
ByVal dw1 As Long, _
ByVal dw2 As Long) As Long
Form1.Print uID, uMsg, dwUser, dw1, dw2
End Function

========Form1========
Option Explicit
Dim hTimerID

Private Sub Form_Load()
hTimerID = timeSetEvent(1000, _
10, _
AddressOf Module1.TimerProc, _
1, _
TIME_PERIODIC Or TIME_CALLBACK_FUNCTION)
End Sub

Private Sub Form_Unload(Cancel As Integer)
If hTimerID <> 0 Then
timeKillEvent hTimerID
hTimerID = 0
End If
End Sub

best regards,
Andreas Lundgren