Resources for Buttons
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exmh uses X resources to specify its
buttons and menus on the main display, the editor window,
and the What Now dialog.
You can add a button to one of these areas of the user interface
by listing it in a ubuttonlist resource
and adding resources that describe the button.
X resource names are hierarchical; these are the button list
resources used by exmh:
*Main.ubuttonlist
*Fops.ubuttonlist
*Mops.ubuttonlist
*Sedit.Menubar.ubuttonlist
*WhatNow.ubuttonlist
These resources are necessary because there's no easy way to enumerate the
contents of the resource database.
When exmh starts up, it asks for the definition of both
buttonlist and ubuttonlist resources.
app-defaults has definitions for its buttons under
the buttonlist resource; users should add new buttons with the
ubuttonlist resource.
To remove some system buttons, you have
to override the definition of the buttonlist resource.
This is best explained by an example.
Here are the definitions for the main buttons:
*Main.buttonlist: quit pref alias
*Main.quit.text: Quit
*Main.quit.command: Exmh_Done
*Main.pref.text: Preferences
*Main.pref.command: Preferences_Dialog
*Main.alias.text: Aliases
*Main.alias.command: Aliases_Pref
The *Main.buttonlist resource names the buttons that
appear in the top row of buttons.
The value of the *Main.buttonlist resource,
in turn, causes exmh to look for
other resources that define the text and command attributes for
each button.
The command is a Tcl command; most are simple commands of
one or two words.
If you are really inspired, you can set many different attributes of
a Tk button via resources -- get the details from the Tk manual page
for button.
The next example adds a Repl button to the
message buttons.
By default, there are a few variations on Reply
under the Reply... menu.
You might like a Repl button for your most common form of reply.
The Msg_Reply Tcl command takes regular arguments for the MH
repl program.
*Mops.ubuttonlist: myrepl
*Mops.myrepl.text: Repl
*Mops.myrepl.command: Msg_Reply -filter myrepl.filter -cc all
See the Section Replying to Mail with repl
for an overview of repl.
Beware of repl options like -query that prompt you and
expect an interactive response; these will lock up exmh.
The MH Reference Guide
has a summary of repl options.
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