(xemacs.info)Additional Mouse Operations


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9.3 Additional Mouse Operations
===============================

XEmacs also provides the following mouse functions.  Most of these are
not bound to mouse gestures by default, but they are provided for your
customization pleasure.  For example, if you wanted `shift-left' (that
is, holding down the <Shift> key and clicking the left mouse button) to
delete the character at which you are pointing, then you could do this:

     (global-set-key '(shift button1) 'mouse-del-char)

`mouse-del-char'
     Delete the character pointed to by the mouse.

`mouse-delete-window'
     Delete the Emacs window that the mouse is on.

`mouse-keep-one-window'
     Select the Emacs window that the mouse is on, then delete all other
     windows on this frame.

`mouse-kill-line'
     Kill the line pointed to by the mouse.

`mouse-line-length'
     Print the length of the line indicated by the pointer.

`mouse-scroll'
     Scroll point to the mouse position.

`mouse-select'
     Select the Emacs window the mouse is on.

`mouse-select-and-split'
     Select the Emacs window mouse is on, then split it vertically in
     half.

`mouse-set-mark'
     Select the Emacs window the mouse is on and set the mark at the
     mouse position.  Display the cursor at that position for a second.

`mouse-set-point'
     Select the Emacs window that the mouse is on and move point to the
     mouse position.

`mouse-track'
     Make a selection with the mouse.   This is the default binding of
     the left mouse button (<button1>).

`mouse-track-adjust'
     Extend the existing selection.  This is the default binding of
     <Shift-button1>.

`mouse-track-and-copy-to-cutbuffer'
     Make a selection like `mouse-track', but also copy it to the cut
     buffer.

`mouse-track-delete-and-insert'
     Make a selection with the mouse and insert it at point.  This is
     the default binding of <control-shift-button1>.

`mouse-track-insert'
     Make a selection with the mouse and insert it at point.  This is
     the default binding of <control-button1>.

`mouse-window-to-region'
     Narrow a window to the region between the cursor and the mouse
     pointer.

   The `M-x mouse-track' command should be bound to a mouse button.  If
you click-and-drag, the selection is set to the region between the
point of the initial click and the point at which you release the
button.  These positions do not need to be ordered.

   If you click-and-release without moving the mouse, the point is
moved, and the selection is disowned (there will be no selection
owner.)  The mark will be set to the previous position of point.

   If you double-click, the selection will extend by symbols instead of
by characters.  If you triple-click, the selection will extend by lines.

   If you drag the mouse off the top or bottom of the window, you can
select pieces of text that are larger than the visible part of the
buffer; the buffer will scroll as necessary.

   The selected text becomes the current X selection, and is also
copied to the top of the kill ring.  Point will be left at the position
at which you released the button and the mark will be left at the
initial click position.  Bind a mouse click to
`mouse-track-and-copy-to-cutbuffer' to copy selections to the cut
buffer.  (See also the `mouse-track-adjust' command, on
`Shift-button1'.)

   The `M-x mouse-track-adjust' command should be bound to a mouse
button.  The selection will be enlarged or shrunk so that the point of
the mouse click is one of its endpoints.  This is only meaningful after
the `mouse-track' command (<button1>) has been executed.

   The `M-x mouse-track-delete-and-insert' command is exactly the same
as the `mouse-track' command on <button1>, except that point is not
moved; the selected text is immediately inserted after being selected;
and the text of the selection is deleted.

   The `M-x mouse-track-insert' command is exactly the same as the
`mouse-track' command on <button1>, except that point is not moved; the
selected text is immediately inserted after being selected; and the
selection is immediately disowned afterwards.


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