Except for all the functionality that is provided by the window manager: http://www.x.org/releases/current/doc/xorg-docs/icccm/icccm.html#Client_to_Window_Manager_Communication https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html I was the lead developer of the mutter window manager for a good 3-4 years, and I also worked on GTK+ a lot. Toolkits might appear to work without a WM in place, but there will be lots of subtle behavior differences. The X11 protocol indeed has a design decision of "mechanism, not policy", which means that since the policy *isn't* in the X server, it must be somewhere else. That somewhere else is, in a lot of cases, the window manager. On Thu, Mar 17, 2016 at 10:07 PM, Göran Hasse <gorhas@xxxxxxxxxx> wrote: > Hello! > > No not at all! > > The window manager is just a "helper". Infact the W-window > system was written as a "policyfree" environment. It was a design idea *not to have* > the application dependent on the window - mangager". So this is *not* a strange > thing at all. *NO*! functionality is dependent on the window mangager! > > Some programing toolkit are a little bit crippeled to handle itself in > respect with resize, fonts and sutch. Gtk have some issues without > window mangager - but not mutch. If you write a X-window application without > a toolkit you have compleet control. (This is *verry* akward though). > > So if you want to write a kiosk there is *no need* to have a window manger. > > /gh > > Den 2016-03-18 kl. 06:00, skrev Jasper St. Pierre: >> I highly recommend against this. A window manager should be around to >> manage windows, since a lot of functionality to applications is >> provided by the WM. Having it missing could cause strange bugs. >> >> Please just use a lightweight window manager like Matchbox or metacity. >> >> On Thu, Mar 17, 2016 at 9:33 PM, Göran Hasse <gorhas@xxxxxxxxxx> wrote: >>> This is quite simple. >>> >>> You have to send in the geometry to the GTK application so that is self >>> can decide its geometry. >>> >>> You don't need any window manager. >>> >>> I run a lot of FreeBSD computers this way. >>> >>> In rc.local you run something like >>> >>> ------------------------------- >>> #!/usr/local/bin/bash >>> >>> /usr/sbin/ntpdate -s 0.ubuntu.pool.ntp.org >>> >>> DISPLAY=:0.0 >>> export DISPLAY >>> >>> /usr/local/bin/X -ac & >>> >>> # Let the x-server have time to start >>> sleep 20 >>> >>> # Connect from any IP >>> /usr/local/bin/xhost + & >>> >>> # Remove the cursor from the screen, turn off screensaver >>> /usr/local/bin/unclutter -root -idle 1 & >>> /usr/local/bin/xset -dpms & >>> /usr/local/bin/xset s off & >>> >>> # set background >>> # https://en.wikipedia.org/wiki/X11_color_names >>> /usr/local/bin/xsetroot -solid Grey & >>> >>> # show local time >>> TZ=CEST >>> export TZ >>> >>> # Startscript for infotable at LEV >>> DISPLAY=192.168.37.88:0.0 ./draw-text -x 0 -y 0 -X 896 -Y 307 -g logo -L "" -f 100 & >>> ... >>> >>> ---------------------------------------------------- >>> >>> Note that the gtk-widget have to "resize" itself. So you must program it to >>> read its own "geometry". x , y , X Y (and some other stuff). >>> >>> /gh >>> >>> Den 2016-03-18 kl. 01:30, skrev Anatol Pomozov: >>>> Hi >>>> >>>> I am trying to implement a simple Kiosk-like web application. The >>>> application will run fullscreen all the time and show web pages. I my >>>> case it will be project's build status. I want to use a simple >>>> computer like a RaspberryPi. And I want to avoid starting heavy >>>> environments like KDE or Gnome. >>>> >>>> Is there any good example/tutorial on this topic? >>>> >>>> In fact I already have a simple GTK application that uses WebKit >>>> engine. I can run it both in Gnome and without it by using xinit. I >>>> have a few questions about it: >>>> >>>> - gtk_window_fullscreen() works fine with Gnome but with xinit it does >>>> not expand the window. Does it mean that fullscreen is actually a DE >>>> feature? What is the best way to make fullscreen app in XWindow? Right >>>> now I use gdk_screen_get_width/height and then set default size. >>>> >>>> - If I run webkit in XWindows it shows pages with horrible fonts. How >>>> to make the browser fonts similar to what I see in my Gnome desktop? >>>> Where to start reading about font handling in the modern Linux >>>> graphical stack? >>>> >>>> - It looks like Kodi player at RaspberryPi does not not use xinit at >>>> all. It looks like RaspberryPi has a direct framebuffer feature. Is it >>>> possible to do it with my webkit-centric application? I can't find any >>>> details on this topic. >>>> >>>> Did anybody make something similar? I would love to hear the >>>> experience in making DE-less applications. >>>> _______________________________________________ >>>> gtk-list mailing list >>>> gtk-list@xxxxxxxxx >>>> https://mail.gnome.org/mailman/listinfo/gtk-list >>>> >>> >>> -- >>> Göran Hasse >>> Raditex Control AB >>> http://www.rscada.se >>> OrgNr: 556611-8773 >>> email: gorhas@xxxxxxxxxx >>> tel: 019-450105 >>> mob: 070-5530148 >>> _______________________________________________ >>> gtk-list mailing list >>> gtk-list@xxxxxxxxx >>> https://mail.gnome.org/mailman/listinfo/gtk-list >> >> >> > > -- > Göran Hasse > Raditex Control AB > http://www.rscada.se > OrgNr: 556611-8773 > email: gorhas@xxxxxxxxxx > tel: 019-450105 > mob: 070-5530148 -- Jasper _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
