Visible bell mini-Howto

• Index
• Copyright and License
• Introduction
• Spekearectomy
• Per-console Beep Configuration
• Basic Concepts About Termcap and Terminfo
• Defining a Visible Bell
• Disabling the Audible Bell on the Text Console
• Telling Applications to Avoid Beeping
• The Dark Side of the Problem

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6. Defining a Visible Bell

You can add the entry for the vb capability in your own termcap file, if it doesn't already define one. Dennis Henriksen (duke@diku.dk) suggested to insert the following line in the termcap entry for linux (note that the entry is called console in old distributions):

:vb=\E7\E[?5h\E[?5l\E[?5h\E[?5l\E[?5h\E[?5l\E[?5h\E[?5l\E8:\

The trailing backslash is used to escape the newline in the database. Dennis' code does the following (his own words):

• Save the cursor position (uust a safety precaution).
• Change the background color several times between normal and reverse.
• Restore the cursor position.

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