Retrieving Application Exit Code in MS-DOS Window (83301)
The information in this article applies to:
- Microsoft Windows Software Development Kit (SDK) 3.1
This article was previously published under Q83301 SUMMARY
Under Windows version 3.1, the value returned by an MS-DOS-based
application is available to other applications in the system. Under Windows
version 3.0, however, this value is not available; the exit code returned
is always zero.
MORE INFORMATION
Windows supports an MS-DOS window in which to run MS-DOS (non-Windows)
applications. The WINOLDAP module serves as an interface for the
application and the remainder of the Windows environment. When the
MS-DOS-based application terminates, WINOLDAP retrieves the application's
exit code. Then WINOLDAP itself terminates, using the retrieved exit
code as its own exit code.
An application developed for the Windows environment can retrieve the
exit code from WINOLDAP. The application defines a call-back function
and calls the NotifyRegister function in the tool helper library
(TOOLHELP.DLL). The call-back function will receive an NFY_EXITTASK
message containing the exit code each time a task terminates.
The Windows 3.1 WINOLDAP module can return a number of error codes
which are listed and explained in the "Microsoft Windows Software
Development Kit Programmer's Reference Volume 1," page 277.
| Modification Type: | Minor | Last Reviewed: | 4/6/2004 |
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| Keywords: | kb16bitonly KB83301 |
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