Re: [gtk-vnc-devel] mouse pointer doesn't follow up in viewer...

[Rob Stoddard <rstoddard telanetix com>]

I have tested a number of configurations, in both 0.3.2 and in 0.3.3.   
0.3.2 works correctly, 0.3.3 does not.  I have my application set  
vnc_display_set_pointer_local(VNC_DISPLAY(vnc), FALSE) at the moment, 
however, I have tried it with it true, with and without pointer_grab 
set, and so forth.  Unfortunately, I cannot use 0.3.2 because I need 
scaling.

I know very little about the VNC protocol, that which I could find is 
http://www.realvnc.com/docs/rfbproto.pdf, which contains nearly nothing 
about the server sending pointer information to the viewer.  All I can 
see, and trace in the viewer, is when the pointer changes.  I don't know 
what message the server sends to the viewer when the pointer moves.  I 
have tried to grep out pointer-warping function calls in the viewer in 
both versions, but could only find a pointer warp in motion_event in the 
vncdisplay.c file.  Needless to say, that function is not called when 
the server moves the pointer, even in 0.3.2 where the pointer does move 
in the viewer.  I tried using wireshark to sniff the VNC packet for 
mouse moves, but I get so many undefined packet types I can't tell one 
from another.  I am at a loss.


Thank you for your assistance,

Rob Stoddard


Anthony Liguori wrote:
> Rob Stoddard wrote:
> > I have been working with your wonderful library in attempts to create 
> > a VNC viewer that my company can use for its product's desktop 
> > sharing extension.  My first attempt at doing something with your 
> > widget was to insert OpenGL support; however, you guys beat me to the 
> > punch.  I really like your library, but I am having trouble with one 
> > thing.
> >
> > The viewer application that I need to create is just that- a pure 
> > viewer that offers no control to the user, since it'll be running on 
> > a system that has no keyboard or mouse attached.  I would like the 
> > mouse pointer to be controllable from the remote server, however, as 
> > much as I could do that prior to the OpenGL mod, I can't seem to make 
> > it happen now.  The pointer reflects all changes from one type to 
> > another, however, it just sits in one place on the screen.
> >   
>
> Have you tried disabling local cursor?  I've only tested the read-only 
> mode against QEMU which doesn't not support local cursors.
>
> Regards,
>
> Anthony Liguori
>
> > I've been going through the code to see where the disconnect may 
> > be... If I find it before you guys do, I'll report it, however, I 
> > would really appreciate hearing from you guys if you find the issue 
> > before I do.
> >
> >
> > Thank you very much
> >
> > Rob Stoddard
> >
> >
> >
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