Re: [help-texinfo] Calling User Defined functions

[Gavin Smith]

On Thu, May 30, 2019 at 07:08:13PM +0200, Christopher Dimech wrote:
> I have produced a simple function put I do not know how to use it.
> Tried checking the manual but have not been able to find where it
> mentions how user define functions can be used.
> 
> @deffn Command disp-expr imgnm
>   The name of the image is @var{imgnm}
> @end deffn
> 

This does not create a function you can call from Texinfo.  I suggest 
reading the Texinfo manual on how to define macros using the @macro 
command.