Path: utzoo!utgpu!watmath!att!dptg!rutgers!sun-barr!decwrl!shlump.nac.dec.com!riscy.dec.com!fuel.dec.com!graham
From: graham@fuel.dec.com (kris graham)
Newsgroups: comp.windows.x
Subject: Re: Dec Toolkit PIXMAP/Label question
Message-ID: <1459@riscy.dec.com>
Date: 31 Aug 89 01:45:42 GMT
References: <5840022@wdl1.UUCP>
Sender: news@riscy.dec.com
Lines: 77




> > 	I'm trying to do something very simple: make a label widget with
> > 	a pixmap label.
> 
> [excerpts of code]
> 
> >      middle = XCreatePixmapFromBitmapData(display,rootwin,confirm_right_bits,
> >                              confirm_middle_width,confirm_middle_height,1);
> 
> >	produces the following semi-useless garbage:
> > 
> > X Protocol error:  BadValue, integer parameter out of range for operation
> >   Major opcode of failed request:  53 (X_CreatePixmap)
> >   Minor opcode of failed request:  0
> >   Resource id in failed request:  0x0
> >   Serial number of failed request:  29
> >   Current serial number in output stream:  41
> > 
> > 	What's going on here? What's the bad value? Huh?
> 
> Wrong number of arguments to XCreatePixmapFromBitmapData.  If your width or
> height are 0 that would produce the BadValue error.  But it is probably the
> depth argument, which is missing, which is resulting in the BadValue error.
> 
> > P.S. What the hell is a drawable? What does the line:
> >      "Specifies the drrawable that indicates the screen."
> >      mean? 
> 
> The glossary defines drawable.  The server uses the drawable argument to 
> determine on which screen to create the pixmap; pixmaps can only be used
> on the screen on which they were created.
> 
> 
> Donna Converse
> converse@expo.lcs.mit.edu

I don't write that much  DECwindows toolkit code.......however.........

Mark K Gerolimatos' statement in the base article caught my attention ;-)

>	Ever tried to use the Dec toolkit? Without pulling your hair out?
>                I'm trying to do something very simple: make a label widget with
>                a pixmap label.......

Overall, Donna is correct.

The following is a sample of how to create pixmaps with the DECwindows toolkit.

/* routine to make a pixmap */
static Pixmap MakePixmap(dpy, root, data, width, height)
    Display     *dpy;
    Drawable    root;
    short       *data;
    Dimension   width, height;
{
    Pixmap pid;
    unsigned long       ScreenNumber;

    ScreenNumber = XDefaultScreen (dpy);

    pid = XCreatePixmapFromBitmapData (dpy, root, data,
                (Dimension) width, (Dimension) height,
                (unsigned long) BlackPixel (dpy, ScreenNumber),
                (unsigned long) WhitePixel (dpy, ScreenNumber),
                (unsigned int) DefaultDepth (dpy, ScreenNumber));
   return(pid);
}



-- 
Christopher Graham          
Digital Equipment Corp            
Ultrix Resource Center                                             
New York City