Can someone point me in the right direction for a routine or vbx that can
allow me to time with millisecond accuracy?  I have C routines that won't
go into a DLL nicely.  Too many GPF's.

send to mail box please,

will be very grateful for help!

If you want really high-resolution timing (and you have a Pentium) you can
 use the semi-undocumented RDTSC instruction to get an 8-byte count that
increments at the processor's internal clock rate.  For example, on a P100 the
count is in increments of 10 ns.  You need a DLL to execute the instruction,
but it's very simple.  Here's the procedure I use, in 16-bit Borland Pascal:

procedure RDTSC(var t:Comp); export;  {Comp is the same as VB Currency }
begin
 asm
  DB    $0F,$31         {RDTSC}

  LES   BX,t            {Address of 8-byte area}
  DB    $66             {Make next instruction 32-bit}
  MOV   ES:[BX],AX      {Store EAX}
  DB    $66             {Make next instruction 32-bit}
  MOV   ES:[BX+4],DX    {Store EDX}
 end
end;

Someone else posted this a while back:

   '1ms resolution timer

   'declare
   Declare Function timeGetTime Lib "MMSYSTEM" () As Long

   'example
   oldtime& = timeGetTime()

    'code in here

   deltamillisec& = timeGetTime() - oldtime&

Bryan Miller

If you're looking for a control that can cause events every
millisecond, the Waite Group's Visual Basic 4 How To book has one
called HiTime...

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