Re: Why does show_help_echo call substitute_command_keys?

[Clément Pit-Claudel]

On 2017-07-21 11:10, Yuri Khan wrote:
> On Fri, Jul 21, 2017 at 4:01 PM, Clément Pit-Claudel
> <address@hidden> wrote:
>> On 2017-07-21 10:48, Yuri Khan wrote:
>>> Because the help-echo property is the Emacs API to tooltips, and
>>> tooltips are expected to be able to display keyboard equivalents to
>>> clicking the thing that is pointed?
>>
>> Ok. So we don't expect callers to explicitly use substitute-command-keys on 
>> their help-echo properties?
> 
> Imagine if it were so.
> 
> You add a button to the tool bar, with a help-echo property containing
> tooltip text with command keys substituted at the time of addition.
> 
> The user rebinds the command to another key. Your button retains its
> (now inaccurate) tooltip text.

This makes complete sense; thanks!