grub2-dev: Command Line Window

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1 11.4 Command Line Window
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1 The terminal window used to provide command line access within the
1 graphical menu is managed by 'gfxmenu/view.c'.  The 'gfxterm' terminal
1 is used, and it has been modified to allow rendering to an offscreen
1 render target to allow it to be composed into the double buffering
1 system that the graphical menu view uses.  This is bad for performance,
1 however, so it would probably be a good idea to make it possible to
1 temporarily disable double buffering as long as the terminal window is
1 visible.  There are still unresolved problems that occur when commands
1 are executed from the terminal window that change the graphics mode.
1 It's possible that making 'grub_video_restore()' return to the graphics
1 mode that was in use before 'grub_video_setup()' was called might fix
1 some of the problems.
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