XmCommandSetValue — A Command function that replaces a
displayed string

     #include <Xm/Command.h>
void XmCommandSetValue(
Widget widget,
XmString command);

     XmCommandSetValue replaces the string displayed in the
command area of the Command widget with the passed XmString.

widget    Specifies the Command widget ID

command   Specifies the passed XmString

     For a complete definition of Command and its associated
resources, see XmCommand(3).