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From: mikem@ibmpa.awdpa.ibm.com
Newsgroups: comp.os.os2.programmer
Subject: Re: Group Handles from .INI Files
Message-ID: <1991May7.202954.18438@ibmpa.awdpa.ibm.com>
Date: 7 May 91 20:29:54 GMT
References: <1991May1.202601.1272@terminator.cc.umich.edu>
Sender: news@ibmpa.awdpa.ibm.com (news ego)
Reply-To: mikem@ibmpa.awdpa.ibm.com (Michael MacFaden)
Distribution: na
Organization: IBM M&S Development, Palo Alto
Lines: 45

In article <1991May1.202601.1272@terminator.cc.umich.edu> jwh@bodwin.ifs.umich.edu (Jim Howe) writes:
>I've just started exploring the profile capabilities of OS/2 PM
>and I have a question that I hope someone can answer.  Several
>of the Prf... calls take a group handle as a parameter.  However,
>the only way I can find to get a group handle is to create a
>new group.  Is there a way to get the handle to an existing group?
>

The API isn't very straigt forward..but here is what I use in a routine
to locate a group handle. This code fragment enumerates all groups in the
desktop manager then goes on to get the titles.

len = PrfQueryProgramTitles(hini1, SGH_ROOT, (PPROGTITLE)NULL, 0, (PULONG)   
   &count);                                                                  
if (!len)                                                                    
  {                                                                          
  fprintf(stderr, "FindGroup: PrfQueryProgramTitles() returned 0\n");        
  return  NULL;                                                              
  }                                                                          
                                                                             
if (DosAllocSeg((USHORT)len+10, &sel1, SEG_GETTABLE))                        
  {                                                                          
  fprintf(stderr, "FindGroup: DosAllocSeg() failed!\n");                     
  return  NULL;                                                              
  }                                                                          
                                                                             
titleptr = (PROGTITLE *)MAKEP(sel1, 0);                                      
PrfQueryProgramTitles(hini1, SGH_ROOT, titleptr, len+9, &count);             
group = NULL;                                                                
for (x = 0; x < (USHORT)count; x++)                                          
  {                                                                          
  pgroup = PrfCreateGroup(hini1, (PVOID)titleptr[x].pszTitle, SHE_VISIBLE|   
     SHE_PROTECTED);                                                         
  if (!pgroup)                                                               
    continue;                                                                
  count1 = 0;                                                                
  len = PrfQueryProgramTitles(hini1, pgroup, pptitle, 0, &count1);           
  if (len <= 0)                      // no programs in the group             
.... and so on..
See MS V4 pg 264 for details.

Hope this helps you out.
Michael R. MacFaden    IBM Palo Alto     Marketing Systems
mikem@ibmpa.awdpa.ibm.com, macfaden@paloic1.vnet.ibm.com 
disclaimer:  what I write above is not necessarily my employer's opinion