?
Solved

VB6 multithread?

Posted on 1998-12-17
2
Medium Priority
?
1,050 Views
Last Modified: 2012-05-04
Can VB6 produce truly multithread programming? If so, any examples?
Thanks
0
Comment
Question by:Torus
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 3

Expert Comment

by:Sendoh
ID: 1451176
Hi !
Why don't you use timer control ??
0
 
LVL 13

Accepted Solution

by:
Mirkwood earned 150 total points
ID: 1451177
Here is an example from http://www.hilonet.com/vbthread/
The code
1.Assuming that we have an application that among other things can copy a file on the click of a button.

2.The copy button could have code like this:

Private Sub cmdCopyFile_Click()
Dim lpThreadID As Long
Dim hThread As Long

'spawn a new thread of execution starting with the AsyncFileCopy function
hThread = CreateThread(ByVal 0&, ByVal 0&, AddressOf AsyncFileCopy, ByVal 0&, ByVal 0&, lpThreadID)
CloseHandle hThread 'clean up after ourselves
End Sub


3.Code this for you module:

Option Explicit

Public gsOriginalFile As String
Public gsDuplicateFile As String
Declare Function CreateThread Lib "kernel32" (lpThreadAttributes As Any, ByVal dwStackSize As Long, ByVal lpStartAddress As Long, lpParameter As Any, ByVal dwCreationFlags As Long, lpThreadID As Long) As Long
Declare Function CloseHandle Lib "kernel32" (ByVal hHandle As Long) As Long

Public Function AsyncFileCopy() As Long
'Assuming that gsOriginalFile & gsDuplicateFile
'are valid path/file names set elsewhere.

FileCopy gsOriginalFile, gsDuplicateFile
End Function

See also
http://www.microsoft.com/msj/0897/multithreading.htm
0

Featured Post

Want to be a Web Developer? Get Certified Today!

Enroll in the Certified Web Development Professional course package to learn HTML, Javascript, and PHP. Build a solid foundation to work toward your dream job!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Background What I'm presenting in this article is the result of 2 conditions in my work area: We have a SQL Server production environment but no development or test environment; andWe have an MS Access front end using tables in SQL Server but we a…
I was working on a PowerPoint add-in the other day and a client asked me "can you implement a feature which processes a chart when it's pasted into a slide from another deck?". It got me wondering how to hook into built-in ribbon events in Office.
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
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…
Suggested Courses
Course of the Month10 days, 14 hours left to enroll

770 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