distinguish sysv/svr4/bsd variants.
AltGr and has a valid AltGr scan code, it's a valid key and should not be discarded.
…a pause. (mouse-drag-region): Use mouse-show-mark to do temp highlighting. (mouse-save-then-kill): Call mouse-show-mark for a new selection if we have a window system.
Fix `substring' arguments. Recognize ``medium'' prefix.
detected to have been released since Emacs lost focus. (win32_wnd_proc): Have Windows translate VK_NUMLOCK and VK_SCROLL key downs; don't reset the modifier state when Emacs loses focus.
when newdir is just "//". (Ffile_name_directory) [WINDOWSNT]: Return Qnil if filename is a partial UNC name such as "//foo".
(electric-command-apropos): Specify *Apropos* as buffer name.
first page by setting point, not window-start (which can leave point in an unexpected place).
parenthesized function name.