Info Catalog elisp: Auto Major Mode elisp: Major Modes elisp: Derived Modes

elisp: Mode Help

 
 22.2.3 Getting Help about a Major Mode
 --------------------------------------
 
 The ‘describe-mode’ function provides information about major modes.  It
 is normally bound to ‘C-h m’.  It uses the value of the variable
 ‘major-mode’ (Major Modes), which is why every major mode
 command needs to set that variable.
 
  -- Command: describe-mode &optional buffer
      This command displays the documentation of the current buffer’s
      major mode and minor modes.  It uses the ‘documentation’ function
      to retrieve the documentation strings of the major and minor mode
      commands (Accessing Documentation).
 
      If called from Lisp with a non-‘nil’ BUFFER argument, this function
      displays the documentation for that buffer’s major and minor modes,
      rather than those of the current buffer.
 

Info Catalog elisp: Auto Major Mode elisp: Major Modes elisp: Derived Modes