XShape example usage?

[Matthieu Herrb]

On Thu, Dec 21, 2017 at 11:51:49AM +0000, Felix Schütt wrote:
> Hello,
> 
> I am currently trying to create a custom shape for a simple X11 window 
> (mostly for a splash screen). Based on the lacking documentation on 
> https://www.x.org/archive/X11R7.5/doc/man/man3/XShape.3.html I can 
> however not find any way to do it. Is there a possiblity of some example 
> / testing code available somewhere? I can't figure out how I should use 
> XShape to create a non-rectangular window.

Hi

You have oclock in the X.Org applications : 
https://cgit.freedesktop.org/xorg/app/oclock

> 
> My second question regards context menus and borderless windows. In a 
> regular X11 window, I can set the background to be transparent -however, 
> if I do that, I still have the shadows (drawn by the WM) around the 
> window. Is there any way in the X11 protocol or its extensions to 
> disable the shadow (to have a true transparent window)? I have often 
> wondered how context menus are handled - in many ways they seem like 
> regular windows, however they don't have the usual borders of  a window. 
> For example, if I disable window decorations in Ubuntu Unity, the window 
> borders are still rounded. Context menus, on the other hand, do not have 
> any rounded borders. So they must be doing some kind of trick to get a 
> simple rectangular window working. I asked other people and they told me 
> that these developers are using XShape extensions. Is this true or is 
> there another way to do context menus?
> 
> 
> Thanks in advance,
> 
> Felix Schütt
> 
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-- 
Matthieu Herrb