Graphics resource files used by IXI Visual Tcl

IXI Visual Tcl reads the standard OSF/Motif resource files during startup.

When the graphical server process starts up, it reads the resources in /usr/lib/X11/app-defaults/Vtcl. Then it checks xrdb, and finally $HOME/.Xdefaults-hostname.

To specify resources for the graphical server, use the classname Vtcl. For example, to specify a foreground of gold and a background of blue, say:

   Vtcl*foreground: gold
   Vtcl*background: blue

To specify resources for an individual vtcl script, use the name passed to VtOpen as the application's classname. For example, the following script puts up a dialog with the Label Hello World! and an OK button:

   set app [VtOpen myprog]
   set form [VtStartForm $app.form -ok]
   set lab [VtLabel $form.label -label "Hello World"]
   VtShow $form
   VtMainLoop

To specify that the OK button should turn green when depressed (armed) for this script, the following line should be added to the resource file:

   *myprog*armColor:  green

Note that since the graphical server is a daemon and only reads resources at startup, it must be killed and restarted for new resources to take effect. This can be done using kill or VtQuitServer.