Re: Buttons in help buffer that displays contents of variables

[Heime <heimeborgia@protonmail.com>]

------- Original Message -------
On Sunday, July 23rd, 2023 at 10:28 AM, Stephen Berman <stephen.berman@gmx.net> wrote:


> On Sat, 22 Jul 2023 22:13:25 +0000 Heime heimeborgia@protonmail.com wrote:
> 
> 
> [...]
> 
> > > > > > > > The error says the function my-action expects one argument, but you
> > > > > > > > defined it with an empty argument list. If you don't want to use the
> > > > > > > > argument, you can use `' as a placeholder for the required argument,
> > > > > > > > which will be ignored by the byte compiler:
> > > > > > > > 
> > > > > > > > (defun my-action ()
> > > > > > > > "Function to be executed when the button is clicked."
> > > > > > > > (interactive)
> > > > > > > > (message "%s" myvar))
> > > > > > > > 
> > > > > > > > Steve Berman
> > 
> > Do you know what the single argument is used for ?
> 
> 
> This is explained in the Info node `(elisp) Manipulating Buttons': Where a BUTTON parameter is specified, it means an object referring to a specific button, either an overlay (for overlay buttons), or a buffer-position or marker (for text property buttons). Such an object is passed as the first argument to a button’s invocation function when it is invoked. See also the function` button-activate' described in that node.
> 
> Steve Berman

What would be the actual object name passed to the function ?