HiDPI support?

Does TightVNC have HiDPI support?

I'm running Win8 on a 3840x2160 monitor. I can connect to a headless 
Linux box over *xdmcp* with no problems, and can see a full HiDPI Linux 
display when using the xming or WinAxe clients on Win8. However, I can't 
do this with TightVNC.

What I've tried:

1 - starting the server on Linux as 'vncserver -geometry 3840x2160 :1'. 
The Windows client then shows the top-left quarter of the Linux desktop, 
scaled up to cover the entire 3840x2160 display.

2 - starting the server with a variety of geometries, up to about 
1800x900. These show the entire Linux desktop, scaled up to cover most 
of the actual 3840x2160 display.

The results seem to indicate that TightVNC thinks that the Windows 
monitor is actually 1920x1080, rather than 3840x2160, and that it scales 
up when the geometry is less than this, and shows a partial desktop when 
the geometry is larger than this. What I want, of course, is for Linux 
to think that it has a 3840x2160 desktop, and for TightVNC to map this 
one-to-one to the monitor.

Can anyone explain what's going on here? Thanks.

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