Solved

DOevents question

Posted on 1998-09-16
1
199 Views
Last Modified: 2010-04-30
I am writing a serial interface program and use the loop to poll the data from buffer. In the loop there is a Doevents to return the control to the OS. If during the Doevents period the user press stop button, can I get out of the loop that I was running and do something else?
0
Comment
Question by:Overflow
1 Comment
 
LVL 4

Accepted Solution

by:
trkcorp earned 50 total points
ID: 1435339
Yes. That is the purpose of DoEvents, to allow a break in a hard loop. In order to make this work though you will have to be able to detect that the button was clicked from within your hard loop and then take appropriate action.  For example:

Option Explicit
Dim bStop as Boolean

Private Sub cmdStop_Click()
bStop = True
End Sub

Sub HardLoop()
Do
  DoEvents
  If bStop then Exit Do 'or maybe Exit Sub?
Loop
End Sub

0

Featured Post

What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

Join & Write a Comment

I’ve seen a number of people looking for examples of how to access web services from VB6.  I’ve been using a test harness I built in VB6 (using many resources I found online) that I use for small projects to work out how to communicate with web serv…
Introduction While answering a recent question (http://www.experts-exchange.com/Q_27402310.html) in the VB classic zone, I wrote some VB code in the (Office) VBA environment, rather than fire up my older PC.  I didn't post completely correct code o…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…

706 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now