Wrox Programmer Forums
Beginning VB 6 For coders who are new to Visual Basic, working in VB version 6 (not .NET).
Welcome to the p2p.wrox.com Forums.

You are currently viewing the Beginning VB 6 section of the Wrox Programmer to Programmer discussions. This is a community of software programmers and website developers including Wrox book authors and readers. New member registration was closed in 2019. New posts were shut off and the site was archived into this static format as of October 1, 2020. If you require technical support for a Wrox book please contact http://hub.wiley.com
Old February 12th, 2006, 11:03 PM
Registered User
Join Date: Jan 2006
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via Yahoo to kevsboy
Default how about cancel a process

I am currently working on an application where it converts a CSV infile into another format of CSV outfile. In a nutshell, the application reads#12288;from the infile, then process (around 10thousand records), then writes to an outfile. The routine process the input line by line.

Private Sub convertFile(textBoxNumber As String)
   Do Until EOF(1)
     'read the file, then process, then write
end sub

What if during the process, the user wants to cancel the job? I tried putting a DoEvent with a GetInputState inside the Loop:

Private Sub convertFile(textBoxNumber As String)
   Do Until EOF(1)

     If GetInputState() <> 0 Then
       If MsgBox("Conversion Completed upto routine " & i & ". Cancel the rest?", vbQuestion + vbYesNo) = vbYes Then EXIT SUB
     End If

     'read the file, then process, then write
end sub

It did catch the key press event, but the problem is, it catches the key pressed after the loop was done. Defeats the purpose because what if the infile is really big. What I am hoping for is some what a real time action on the key press.

Thanks for the advice. If my approach seems to be wrong or absurd, that's because I am a new user of VB. Please excuse me. Thanks guys!

Similar Threads
Thread Thread Starter Forum Replies Last Post
process.startinfo opens new instance of process Anypond General .NET 0 August 28th, 2008 05:35 AM
cancel appointment jeanhl BOOK: ASP.NET 2.0 Instant Results ISBN: 978-0-471-74951-6 3 March 25th, 2008 03:55 AM
How can I cancel deleting ? ALGNET ADO.NET 1 March 22nd, 2006 01:55 PM
Cancel a keystroke Kenny Alligood Access 4 June 12th, 2003 10:02 AM

Powered by vBulletin®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright (c) 2020 John Wiley & Sons, Inc.