PSN-L Email List Message

Subject: Re: Simple VB question ?
From: "Mauro Mariotti" mariotti@.........
Date: Sat, 30 Mar 2002 20:29:58 +0100

Hi Casey,
you can use the "Doevents" instruction.
This tell to VB to process the event in the FIFO queue of Windows.
You can place a "doevents" instruction where you think is better.
I suggest to don't perform a doevents as quick as possible but 
use it very rarely inside your loop. 

I worked a lot with "seismowin" to these problems.


----- Original Message ----- 
From: "Casey J Crane" 
Sent: Saturday, March 30, 2002 8:19 PM
Subject: Simple VB question ?

> Hi all,
>         I know this isn't the exact forum for this question but someone
> in the PSN always seems to have an answer.
>         I'm experimenting with a simple SG sensor and have built an 8 bit
> A/D convertor to interface through my Lpt port. I slapped together a
> Quick Basic program to run it and plot it. Works fine. Now I'm laboring
> with Visual Basic to achieve better results. But I've hit a snag to which
> the answer is probably simple though it eludes me.
>         How do I effect a button click while the program is in a loop
> type subroutine ?
>         Here's the scenario; one Form, two Buttons (Start/Stop) I click
> the Start button and this sends the program flow to a
> loop type subroutine. It's a long loop, counting to a few hundred K.
> While in the loop I cannot click any button. Only until the loop
> conditions are met and the sub ends. I can't even click the Form Close
> button.
>         How can I access buttons (or other objects) while the program is
> pre occupied with these other little tasks ?
>         Any Ideas ?
>         Thanx, Casey
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