Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!dimacs.rutgers.edu!bcm!convex!mdonahue
From: mdonahue@convex.com (Mike Donahue)
Newsgroups: comp.windows.x
Subject: Menus in Xview
Message-ID: <1991Feb04.205249.26761@convex.com>
Date: 4 Feb 91 20:52:49 GMT
Sender: news@convex.com (news access account)
Distribution: usa
Organization: Convex Computer Corporation, Richardson, Tx.
Lines: 75
Nntp-Posting-Host: neptune.convex.com


 I have been attempting to port some sunview programs to Xview and
 have had some mild success, however, I have a program which uses 
 several of the menu widgets from Xview and I cannot get it to work
 when I attempt to pop up the menu with a menu_show I get this 
 error message :

 XView warning: menu_show: menu not owned by this server (Command Menu package)

 endless tweeking of the code did not seem to help so I typed in the 
 simple menu program found in the Xview manual and it seems to do the same
 thing

 Code Follows (from X manual 7 : 236)
 --------------------------------------------------------------------
 .
 .
 .
 initialization stuff
 .
 .
 .

 canvas = (Canvas)xv_create(frame, CANVAS, XV_WIDTH, 300, XV_HEIGHT, 200,
		 NULL);

 scrollbar = (Scrollbar)xv_create(canvas,SCROLLBAR,
		 SCROLLBAR_DIRECTION, SCROLLBAR_VERTICAL, NULL);

 M_menu = (Menu)xv_create(canvas,MENU,
		 MENU_TITLE_ITEM, "Scrollbar",
		 MENU_STRINGS,"On","Off",NULL,
		 MENU_NOTIFY_PROC, menu_notify_proc,
		 XV_KEY_DATA, SCROLLBAR_KEY, scrollbar, NULL);

 xv_set(canvas_paint_window(canvas),
		 WIN_EVENT_PROC, pw_event_proc,
		 XV_KEY_DATA, MENU_KEY, menu,NULL);

 window_fit(frame);
 window_main_loop(frame);
 }

 void
 menu_notify_proc(menu, menu_item)
 Menu menu;
 Menu_item menu_item;
 {
 char *menu_choice = (char *)xv_get(menu_item, MENU_STRING);
 int show_it = !strcmp(menu_choice,"On");

 xv_set(xv_get(menu,XV_KEY_DATA,SCROLLBAR_KEY),
			 XV_SHOW, show_it, NULL);
 }

 void
 pw_event_proc(canvas_pw,event)
 Xv_window canvas_pw;
 Event *event;
 {
	 if (event_action(event) == ACTION_MENU && event_is_down(event))
			 {
 			 Menu menu = (Menu)xv_get(canvas_pw, XV_KEY_DATA, MENU_KEY);
						 menu_show(M_menu,canvas_pw,event, NULL);
			 }
 }


 At any rate this code gets the same error as above.  Has anyone
 encountered this before ?  Any suggestions or hints ?  Am I missing something
 fundamental here ?

 Mike Donahue
 (mdonahue@convex.com)
 214-497-4051