Emacs also provides a graphical tool bar. For a description of the tool bar, please see the section Tool Bars in The GNU Emacs Manual.
MH-E adds several icons to this tool bar; you can modify the MH-E aspects of the tool bar via the ‘mh-tool-bar’ customization group.
mh-tool-bar-folder-buttons List of buttons to include in MH-Folder tool bar (default: a checklist too long to list here).
mh-tool-bar-letter-buttons List of buttons to include in MH-Letter tool bar (default: a checklist too long to list here).
mh-tool-bar-search-function Function called by the tool bar search button (default:
mh-search).
mh-xemacs-tool-bar-position Tool bar location (default: ‘Same As Default Tool Bar’).
mh-xemacs-use-tool-bar-flag If ‘on’, use tool bar (default: ‘on’, if supported).
In GNU Emacs, icons for some of MH-E’s functions are added to the tool bar. In XEmacs, you have the opportunity to create a separate tool bar for the MH-E icons.
In either case, you can select which of these functions
you’d like to see by customizing the options
mh-tool-bar-folder-buttons and
mh-tool-bar-letter-buttons. As you probably guessed,
the former customizes the tool bar in MH-Folder mode and the
latter in MH-Letter mode. Both of these options present you with
a list of functions; check the functions whose icons you want to
see and clear the check boxes for those you
don’t.
The function associated with the searching icon can be set via
the option mh-tool-bar-search-function. By default,
this is set to mh-search. See Searching. You can also choose
‘Other Function’ from the
‘Value Menu’ and enter a function of
your own choosing.
XEmacs provides a couple of extra options. The first,
mh-xemacs-use-tool-bar-flag, controls whether to
show the MH-E icons at all. By default, this option is turned on
if the window system supports tool bars. If your system
doesn’t support tool bars, then you won’t be able to
turn on this option.
The second extra option is
mh-xemacs-tool-bar-position which controls the
placement of the tool bar along the four edges of the frame. You
can choose from one of ‘Same As Default Tool
Bar’, ‘Top’,
‘Bottom’,
‘Left’, or
‘Right’. If this variable is set to
anything other than ‘Same As Default Tool
Bar’ and the default tool bar is in a different
location, then two tool bars will be displayed: the MH-E tool bar
and the default tool bar.