RxSwitchQuery - REXX interface DLL for querying the WinSwitchList

Name     REXX interface DLL for querying the WinSwitchList 
Version  v1.00
Author   Mads Orbesen Troest & SIRIUS Cybernetics 
         (see EMail Addresses)
Distrib. Freeware (?)
Type     REXX DLL 
Price    -
Source   Internet 
         Name: rxswitchquery.* 

Description from the author: 

"Abstract Introduction 

RxSwitchQuery (RxIsRun.DLL) is a small OS/2 Dynamic Link Library (DLL) 
that interfaces routines for querying the OS/2 system WinSwitchList with 
REXX. 

Querying the WinSwitchList allows you to check if a certain program (OS/2, 
DOS or Windoze) is running. RxSwitchQuery also allows you to wait for a 
given application to appear in the WinSwitchList, or for an application to 
disappear; this is useful in situations where scripts have to be 
synchronised with running programs. 

These functions cannot be made from standard REXX, and resorting to 
tape-and-glue solutions of repeatedly calling external query programs is a 
very slow and computionally intensive task. With this easy-to-use and 
versatile DLL, you can easily and efficiently check for running OS/2, DOS 
or Windoze programs from your standard REXX programs."