26.2 Secondary Selection
The secondary selection is another way of selecting text using
X. It does not use point or the mark, so you can use it to kill text
without setting point or the mark.
- Set the secondary selection, with one end at the place where you press
down the button, and the other end at the place where you release it
mouse-set-secondary). The highlighting appears and changes as
you drag. You can control the appearance of the highlighting by
secondary-selection face (see Face Customization).
If you move the mouse off the top or bottom of the window while
dragging, the window scrolls at a steady rate until you move the mouse
back into the window. This way, you can mark regions that don't fit
entirely on the screen.
This way of setting the secondary selection does not alter the kill ring.
- Set one endpoint for the secondary selection
- Make a secondary selection, using the place specified with M-Mouse-1
as the other end (
mouse-secondary-save-then-kill). This also
puts the selected text in the kill ring. A second click at the same
place kills the secondary selection just made.
- Insert the secondary selection where you click
mouse-yank-secondary). This places point at the end of the
Double or triple clicking of M-Mouse-1 operates on words and
lines, much like Mouse-1.
mouse-yank-at-point is non-
yanks at point. Then it does not matter precisely where you click; all
that matters is which window you click on. See Mouse Commands.