bug#24579: [PATCH] borderless windows on OS X

[Clément Pit--Claudel]

On 2016-10-02 04:30, martin rudalics wrote:
>> This looks good indeed, but we don't have the same thing exposed to
>> ELisp for GNU/Linux, do we?
> 
> We do: Emacs' native tooltip frames with a ‘border-width’ of zero should
> accomplish precisely that.

I meant the feature to create an arbitrary frame without a border, from ELisp.  
We don't have this, AFAICT.

>> (https://emacs.stackexchange.com/questions/20167/how-do-i-create-a-borderless-frame
>> was about this).
> 
> The recipes there don't work: The ‘border-width’ parameter is usually
> ignored by the window manager for "normal" frames and replaced by the
> standard border.  You have to create a CWOverrideRedirect window - a
> frame that is _not_ handled by the window manager. 

Right.  Do we have a way to do this from ELisp?

Clément.

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