Mouse

  On DECwindows, you can use the mouse to perform editing operations instead
  of having to type commands or press defined keys:

     Mouse keys   Uses or effects
     ----------------------------------------------------------------------
     M1           * Choose pull-down menus (File, Edit, Search, and so on).
                  * Select text (see usage notes below).
                  * Use vertical or horizontal scroll bars.
                  * Change the input focus or cursor position.
                  * Toggle settings using status line indicators.
                  * Get help on widgets---see help on Context Sensitive
                  Help.

     M2           Copy or move text between EVE and other DECwindows
                  applications or within EVE---see help on Quick Copy.

     M3           Display a pop-up menu---see help on Menus.

  Usage notes:

  o  In the main window (or work area), clicking or dragging M1 repositions
     the cursor and selects text as follows (see help on SELECT):

        1 Click ...... Cancels a selection, and repositions the cursor.
        2 Clicks ..... Selects all of the word the pointer is on.
        3 Clicks ..... Selects all of the line the pointer is on.
        4 Clicks ..... Selects all of the paragraph the pointer is on.
        5 Clicks ..... Selects all of the buffer (same as SELECT ALL).
        Drag ......... Selects text, starting where you press M1
                       and ending where you release M1.
        Shift/Drag ... Extends or shrinks a selection.

  o  You cannot define unmodified M1 buttons. However, you can define the
     downstroke, upstroke, clicks, and drag of other mouse buttons as
     separate keys. If you press a mouse button you defined, EVE first moves
     the cursor to where you are pointing---see help on Position Cursor---
     and then executes the key definition. For example, the following
     commands define the downstroke (press) of GOLD/M2 as PASTE and the
     upstroke (release) as FILL:

        Command: DEFINE KEY= gold/m2down  paste
        Command: DEFINE KEY= gold/m2up    fill

     Thus, when you press and release GOLD/M2, EVE first moves the cursor to
     where you are pointing, pastes the text you last cut or copied, and
     then fills the paragraph that the cursor is in.

  o  Undefined mouse buttons work like M1. For example, GOLD-M2CLICK1 is the
     same as clicking M1, and GOLD-M2DRAG is the same as dragging M1.

  Related topics:

     Menus                       Position Cursor
     Quick Copy                  Ranges And Boxes
     Scroll Bars                 Status Line
     DEFINE KEY                  SELECT
     SET SELECTION GRAB FOCUS    SET SELECTION GRAB SELECTION