NAME

win − Sun window system

SYNOPSIS

pseudo-device win128
pseudo-device dtop4

DESCRIPTION

The win device accesses the system drivers supporting the Sun window system. 

Each window in the system is represented by a /dev/win∗ device.  The windows are organized as a tree with windows being subwindows of their parents, and covering/covered by their siblings.  Each window has a position in the tree, a position on a display screen, an input queue, and information telling what parts of it are exposed. 

The window driver multiplexes keyboard and mouse input among the several windows, tracks the mouse with a cursor on the screen, provides each window access to information about what parts of it are exposed, and notifies the manager process for a window when the exposed area of the window changes so that the window may repair its display. 

The dtop4 pseudo device line in a kernel configuration file indicates the number of separate “desktops” (frame buffers) that can be actively running the Sun window system at once. 

Full information on the window system functions is given in the Programmer’s Reference Manual for SunWindows. 

FILES

/dev/win[0-9]
/dev/win[0-9][0-9]

SEE ALSO

Programmer’s Reference Manual for SunWindows

Sun Release 1.1  —  Last change: 21 March 1984