Conference bulova::decw_jan-89_to_nov-90

It may be that the correct term for what I want is the "Client Name". I want
it so that I can set up the Motif window manager to have the correct Icons
for all the applications that don't conform the the ICCCM standard, and thus
end up with no icon pixmap under mwm.

Trevor

	What you're looking for is actually the client "class" - since
	the class is used to construct resource file names to be read
	in auto-magically by XtInitialize, $DIR DECW$SYSTEM_DEFAULTS:*.DAT
	should give you a few clues.

	Mike

    
    What about those applications that don't have a .DAT file ? I was
    wondering if there was a program that would, for example, print out the
    class names of all the current clients connected to a server.
    
    Trevor

	I use a program that produces output like that below.
	It is in the next reply (72 lines).  According to its
	initial comment it

/*
   Walk the window tree.  For every window with any of
   a class hints application class, class hints application
   name, or name, write the window id and the data found
   to the standard output.
*/

	I use the window id in another program to change the
	title, icon, or position, and the class hints application
	class or name for the defaults file.

	Dan

	P.s. sample output:

$ run findappls.exe
window: 9437200
   res_class: DECW$BANNER
   res_name: Banner
   name: Banner
window: 2097173
   res_class: DECW$TERMINAL
   res_name: decw$terminal
   name: ZFC
window: 13631490
   res_class: emacs
   res_name: 
   name: GNU Emacs
window: 11534415
   res_class: DECW$MAIL
   res_name: Mail
   name: Mail
window: 3145755
   res_class: Decw$Session
   res_name: Session Manager
   name: Daniel V. D'Eramo
	.
	.
	.

/*
   Walk the window tree.  For every window with any of
   a class hints application class, class hints application
   name, or name, write the window id and the data found
   to the standard output.
*/

/*
   Thanks to Dave Burleigh (TBD1::BURLEIGH) for his XTREE.C
   which provided the skeleton for this program.
*/

#include <stdio.h>
#include <decw$include/Xlib.h>
#include <decw$include/Xutil.h>

static void WalkWindowTree();   /* recursive */

main(argc, argv)
   unsigned int argc;
   char *argv[];
{
   Display *display;

   if (!(display = XOpenDisplay(NULL))) {
      fprintf(stderr, "Can't open display\n");
      exit(0);
   }

   WalkWindowTree(display, RootWindow(display, DefaultScreen(display)));
   exit(1);
}

static void WalkWindowTree(display, window)
   Display *display;
   Window window;
{
   Window root, parent, *children;
   int nchildren;
   XClassHint ch;
   char *name;

   ch.res_name = NULL;
   ch.res_class = NULL;
   name = NULL;
   XGetClassHint(display, window, &ch);
   XFetchName(display, window, &name);
   if (ch.res_class || ch.res_name || name) {
     printf("window: %d\n", window);
     if (ch.res_class)
       printf("   res_class: %s\n", ch.res_class);
     if (ch.res_name)
       printf("   res_name: %s\n", ch.res_name);
     if (name)
       printf("   name: %s\n", name);
     if (ch.res_name) XFree(ch.res_name);
     if (ch.res_class) XFree(ch.res_class);
     if (name) XFree(name);
   }

   XQueryTree(display, window, &root, &parent, &children, &nchildren);
   if (nchildren) {
      register int i;
      register Window *child;

      for (i = 0, child = children; i < nchildren; ++i, ++child)
         WalkWindowTree(display, *child);
      XFree(children);
   }

   return;
}

     change the two #include statements to replace decw$include with X11
     and it compiles and runs just fine on Ultrix/RISC.

>>     change the two #include statements to replace decw$include with X11
>>     and it compiles and runs just fine on Ultrix/RISC.
        
        Right ... use <X11/...> in the C file and you don't need
        those #ifdef VMS's ... just do a "define/user X11 decw$include"
        before compiling on VMS.
        
        Dan