Removing decorations from a window

[Chris Green]

On Mon, Aug 22, 2005 at 10:28:27PM +0200, Benedikt Meurer wrote:
> Chris Green wrote:
> > On Mon, Aug 22, 2005 at 05:40:53PM +0200, Benedikt Meurer wrote:
> > 
> >>>Well, I only know that for GTK there exists a function 
> >>>gtk_window_set_decorated ();. I presume this function uses either motif 
> >>>hints or hints from the EWMH specification defined on freedesktop.org.
> >>
> >>It's part of the MWM hints, which are supported by nearly every window
> >>manager today, and it's completely independent of Xlib, GTK+, etc. (i.e.
> >>XCB will do as well). It's simply a property on the window.
> >>
> > 
> > OK, so can anyone tell me how I can get at this hint from Xlib
> > functions please.
> 
> Quick and dirty:
> 
> struct {
>     unsigned long flags;
>     unsigned long functions;
>     unsigned long decorations;
>     long input_mode;
>     unsigned long status;
> } hints = {
>   2, 0, 0, 0, 0,
> };
> 
> XChangeProperty (display, window,
>                  XInternAtom (display, "_MOTIF_WM_HINTS", False),
>                  XInternAtom (display, "_MOTIF_WM_HINTS", False),
>                  32, PropModeReplace,
>                  (const unsigned char *) &hints,
>                  sizeof (hints) / sizeof (long));
> 
Thank very much Benedikt!  I can get from there to "long and cleaner",
it was just the initial bit I couldn't manage.

Using the MWM hints is fine as long as it works with most WMs.

-- 
Chris Green (chris at areti.co.uk)

    "Never ascribe to malice that which can be explained by incompetence."