Hello,

I use fltk in a graphical data visualization program called "spyview" 
(http://kavli.nano.tudelft.nl/~gsteele/spyview/). In particular, I use 
fl_draw_image to draw a colorized 2D dataset into a Fl_Double_Window.

I have noticed some peculiar behaviour when using running the program over 
remote desktop: specifically, the colors in the image become dithered, as if on 
an 8 bit display, even though the remote desktop color depth is 16 bits.

What is strange is that this only happens over remote desktop: I do not have 
any problems if I am logged to my windows computer in normally, even if I 
reduce my color depth to 16 bits.

(What is also strange is that if run spyview on a unix machine over 
ssh/cygwin-X11 from the _same_ remote desktop session, I do not have the 
dithering problems...)

(Note that to try to ensure I get a good visual, I do call Fl::visual(FL_RGB), 
and it returns 1.)

Could there be something strange with the way that the native win32 FLTK 
libraries are interacting with the win32 drawing routines under remote desktop?

Thanks,
Gary


(Note: I also ran into another such comment about win32 fltk on remote desktop 
here http://devel.zs4.net/module_info_guifltk.html)

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