Re: How to detect (subscribe to) messages that causes screen repaint

2018-07-05 Thread Nikola Radovanovic
Hi,
thank you for the response. I will take a look.

Its a project requirement, so cant do much about it :)

Best regards

On Thu, Jul 5, 2018 at 9:18 PM, Adam Jackson  wrote:

> On Thu, 2018-07-05 at 20:06 +0200, Nikola Radovanovic wrote:
> > Hello,
> > Can someone please point me to some documentation/samples on how to
> > do the following:
> >
> > I have to detect events (messages) that are issued when any of
> > attached screens (one or possibly more of them) will be repainted
> > (partially or completely). So any key press, new window, resize
> > window, mouse move etc.
>
> For updated window content, you want the Damage extension's events. X
> doesn't have globally-available events for mouse motion though, sorry.
>
> > What I am trying is to write a simple VNC viewer (server) for
> > Linux/Android and I have not yet managed to figure out how to
> > subscribe to such events in order to get 'paint' message and affected
> > rectangular area.
>
> I mean, tigervnc already exists, but sure, write another one, why not.
> Do consider reading it though, unix/x0vncserver/*.cxx is pretty much
> what you're describing, including examples of how to register for and
> parse Damage events.
>
> - ajax
>
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Re: How to detect (subscribe to) messages that causes screen repaint

2018-07-05 Thread Adam Jackson
On Thu, 2018-07-05 at 20:06 +0200, Nikola Radovanovic wrote:
> Hello,
> Can someone please point me to some documentation/samples on how to
> do the following:
> 
> I have to detect events (messages) that are issued when any of
> attached screens (one or possibly more of them) will be repainted
> (partially or completely). So any key press, new window, resize
> window, mouse move etc.

For updated window content, you want the Damage extension's events. X
doesn't have globally-available events for mouse motion though, sorry.

> What I am trying is to write a simple VNC viewer (server) for
> Linux/Android and I have not yet managed to figure out how to
> subscribe to such events in order to get 'paint' message and affected
> rectangular area.

I mean, tigervnc already exists, but sure, write another one, why not.
Do consider reading it though, unix/x0vncserver/*.cxx is pretty much
what you're describing, including examples of how to register for and
parse Damage events.

- ajax
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How to detect (subscribe to) messages that causes screen repaint

2018-07-05 Thread Nikola Radovanovic
Hello,
Can someone please point me to some documentation/samples on how to do the
following:

I have to detect events (messages) that are issued when any of attached
screens (one or possibly more of them) will be repainted (partially or
completely). So any key press, new window, resize window, mouse move etc.

What I am trying is to write a simple VNC viewer (server) for Linux/Android
and I have not yet managed to figure out how to subscribe to such events in
order to get 'paint' message and affected rectangular area.

Thank you in advance
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