[Xcb] Xinput: units of the coordinates in motion-events?

[Christophe Lohr]

Hi Uli,

> So, I guess you have to cast your event to
> xcb_input_button_press_event_t and then use these accessors to get all
> the data you want out of the event.
> Does this somehow help you? Could you test if my guess here is right?

Many thanks for your guidance. I have a clearer understanding of the API
now.

Note: I think that methods of the form 'xcb_generic_iterator_t 
xcb_input_FOO_BAR_end()' are not really dedicated to programmer, and are
here for internal purpose, to compute the address of the end of a chunk
of data and subsequently point to the next chunk.
The others methods were more useful for me.

See attached code. I'm rather happy with this.
;-)

Best regards
Christophe

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