Displaying context help

[Sébastien Granjoux <seb sfo free fr>]

Hi,


I would like to add an help button in some dialogs in Anjuta. The 
documentation is using Mallard format. I think I can display the 
corresponding page running "yelp ghelp:anjuta-manual?_page_id_". Is it 
the common solution?

One drawback of this solution is that yelp will display an error if the 
page doesn't exist and Anjuta won't know it. I would prefer to know that 
the page is missing to hide the help button or display a more generic 
page. Is there a way to know this?


Regards,

Sébastien