To have the buttons in the xfce4-panel you can add starters with the following commands:
Minimize-Button: bash -c "xdotool windowminimize $(xdotool getactivewindow)" (Un)maximize-Button: wmctrl -r :ACTIVE: -b toggle,maximized_vert,maximized_horz Close-Button: wmctrl -c :ACTIVE: Depends on the programs xdotool and wmctrl. The packages might have the same names. You can put the buttons in the upper right corner of the screen and choose symbols that match the action.
