This article is from the MachTen & CodeBuilder FAQ, by Jaime Julca firstname.lastname@example.org with numerous contributions by others.
G10.a. Is it possible to cut and paste from X Windows to the Mac desktop?
The fact that our X consumes the screen is a direct result of our X
architecture. Sending the X drawing primitives directly to the hardware
screen buffers give us a big performance advantage. What we lose, of course,
is the 'cut & paste' capability that we would get for 'free' from QuickDraw.
Even though our X is exactly what you would get if you bought an X terminal,
we recognize that, since we are running on a Mac, people expect 'cut &
paste'. This is a feature that, from the beginning, was planned for a future
upgrade. As a workaround you can copy your text to the X clipboard, then
save the clipboard to a file and access the file from MachTen windows or
G10.b. How can I change the keyboard mapping under X?
Checkout is the xmodmap program. It will allow you to manipulate your
keyboard mappings, or you can move the appropriate Xmodmap (located in
/usr/X11/lib/X11/xinit/) to your home directory and remap the key within the
G10.c. Where is libXshr?
LibXshr is a library that was present in earlier versions of MachTen, but is
no longer used. Binaries compiled under previous versions need to be