Solved

CREATE_SEPARATE_WOW_VDM Constant

Posted on 1998-06-08
2
402 Views
Last Modified: 2008-03-10
Hi there,

I want to use a CreateProcess API create a shelled process.  I can achieve this fine but also want to create the process in it's own WOW VDM - anyone know what the constant value of CREATE_SEPARATE_WOW_VDM is???  I've seen it mentioned all over the place and it's even documented in the Win32 API book - but unfortunately they don't tell you what the value actually is!!

Thanks

Pete
0
Comment
Question by:peterwest
2 Comments
 
LVL 4

Accepted Solution

by:
yowkee earned 100 total points
ID: 1462810
In win32 documentation, using CREATE_SEPARATE_WOW_VDM in API CreateProcess:

Windows NT only: This flag is valid only when starting a 16-bit Windows-based application. If set, the new process is run in a private Virtual DOS Machine (VDM). By default, all 16-bit Windows-based applications are run as threads in a single, shared VDM. The advantage of running separately is that a crash only kills the single VDM; any other programs running in distinct VDMs continue to function normally. Also, 16-bit Windows-based applications that are run in separate VDMs have separate input queues. That means that if one application hangs momentarily, applications in separate VDMs continue to receive input.

*** And its value is:
Const CREATE_SEPARATE_WOW_VDM = &H800

Note: you could find it in file winbase.h if you have VC installed.
0
 
LVL 2

Author Comment

by:peterwest
ID: 1462811
Thanks very much - just what I needed - my application no longer crashes with WOW error messages!!!

Cheers

Pete

0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
VB error "Type mismatch" 2 55
using Access 8 68
Adding to a VBA? 6 70
Sorting multiple rows and columns, and count duplicates in Excel 2013 4 80
The debugging module of the VB 6 IDE can be accessed by way of the Debug menu item. That menu item can normally be found in the IDE's main menu line as shown in this picture.   There is also a companion Debug Toolbar that looks like the followin…
Most everyone who has done any programming in VB6 knows that you can do something in code like Debug.Print MyVar and that when the program runs from the IDE, the value of MyVar will be displayed in the Immediate Window. Less well known is Debug.Asse…
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…

803 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