Re: hook run just in message-mode just before user begins composing/replying?

[Eric Abrahamsen]

Gregor Zattler <telegraph@gmx.net> writes:

> Hi Tim, Manuel,
> * Tim Landscheidt <tim@tim-landscheidt.de> [2023-05-09; 13:20 GMT]:
>> Gregor Zattler <telegraph@gmx.net> wrote:
>>> I wrote two functions which, manually called in a
>>> buffer just set up by message-mode for me to start
>>> typing my message/reply, manipulate the headers of said
>>> message.
>>
>>> ATM I call them in message-send-hook but then I do not
>>> see the result of the manipulations and sometimes I would
>>> like to adjust headers after these functions run.
>>
>>> I did not find a hook for this purpose.  I experimented
>>> with message-signature-setup-hook but then one function
>>> mangles the headers, the other function does nothing,
>>> indicating that the headers are not setup or not
>>> accessible as at the moment the user (I) starts to
>>> type.
>>
>>> Any ideas how to solve this puzzle?
>>
>> There are also (in Emacs 28.2) message-header-setup-hook and
>> message-setup-hook that look promising.  Do they work for
>> you?
>
> sadly no.  These are the hooks I already tested (should
> have be more specific in my original post).  Somehow
> the functions don't work there.  The more basic one
> simply does nothing, the other one mangles the headers
> which it does not, if called manually in the
> "*unsent mail to..." buffer.
>
> Any ideas how to actually see the buffer when the hooks
> are run?  Then I could adjust my functions or decide
> that it's simply the wrong hook.
>
> A message-just-before-user-is-allowed-to-type-hook
> would be great...

Maybe just the `message-mode-hook'?