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From: aw@BAE.BELLCORE.COM (Andrew Wason)
Newsgroups: comp.windows.x.motif
Subject: Re: Changing the pointer in ALL windows
Message-ID: <9105011333.AA26591@bellcore.bellcore.com>
Date: 1 May 91 13:33:00 GMT
References: <markus.673042732@hcmv2>
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agate!bionet!uwm.edu!cs.utexas.edu!csc.ti.com!ti-csl!m2.csc.ti.com!hcmv2!markus
@ucbvax.Berkeley.EDU (Markus Richardson) writes:
> theslim@engin.umich.edu (Eric Michael Slimko) writes:
> 
> >I am writing a motif application which has many top-level windows.
> >I would like to have the pointer change to a watch in all those windows
> >to notify the user to wait.  Unfotunately, it looks to me like you have
> >to do a XDefineCursor using the window ID for EACH of the popup windows
> >to get that to happen.  Is there anyway around this?  I tried using the
> >toplevel widget returned from XtInitialize, but that only changes the
> >pointer for that window.  
> 
> I have been fighting with this one too!

Try mapping an InputOnly window on top of *all* of your toplevel
windows.  Give it a watch cursor.

Do something like the following for all of your toplevel widgets
after they are realized:


typedef struct _BusyWindowRec {
    Window window;              /* busy window */
    Widget w;                   /* widget which needs the busy window */
} BusyWindowRec, *BusyWindow;


void
CreateBusyWindow(busy)
BusyWindow busy;
{
    unsigned long valueMask;
    XSetWindowAttributes attributes;

    /*
     *Ignore device events while the busy cursor is displayed.
     */
    valueMask = CWDontPropagate | CWCursor;
    attributes.do_not_propagate_mask =  (KeyPressMask | KeyReleaseMask |
                                         ButtonPressMask | ButtonReleaseMask |
                                         PointerMotionMask);
    attributes.cursor = appData.busy_cursor;

    /*
     * The window will be as big as the display screen, and clipped by
     * it's own parent window, so we never have to worry about resizing.
     * (well, almost never)
     */
    busy->window =  XCreateWindow(XtDisplay(busy->w), XtWindow(busy->w), 0, 0,
                                  WidthOfScreen(XtScreen(busy->w)),
                                  HeightOfScreen(XtScreen(busy->w)),
                                  (unsigned int) 0, CopyFromParent, InputOnly,
                                  CopyFromParent, valueMask, &attributes);
}


Andrew

_______________________________________________________________________________

Andrew Wason                                       Bell Communications Research
aw@bae.bellcore.com                                Piscataway, NJ
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