You can use both Phindows and phditto (which comes standard with Photon) to stretch a single Photon space across multiple desktops. Some (or all) of these desktops can be QNX computers, some (or all) of these desktops can be Windows desktops, and some (or all) can be X workstations as well.
The -x, -y, -h, and -w options are provided in both phditto and Phindows to make this possible. Here's how they work:
Suppose you have a QNX machine running Photon on a console in 1024x768 resolution. You now want to stretch the Photon space to include the 1024x768 Windows screen you've placed immediately to the right of the QNX screen (creating a 2048x768 Photon desktop). You simply need to start Phindows on the Windows machine with: phindows.exe -x1024 -n/dev/photon
When the connection is made (TCP/IP works well), you'll notice that the Photon desktop manager, which is normally on the bottom of the Photon screen, stretches to include the bottom of the right-hand MS-Windows screen as well. You can now take either mouse, start up new applications, drag them from screen to screen, and otherwise take advantage of your increased workspace.
With careful use of the -x and -y (and -h and -w) options, you can create many interesting combinations (an array of monitors forming one huge Photon display, multimedia presentations, etc.)