Index for Section 9

Alphabetical listing for W

Bottom of page

ws_screen_functions(9s)
NAME
  ws_screen_functions - Graphics: Used by the display driver to specify the
  routines that perform screen functions for a particular graphics display

SYNOPSIS
       typedef struct {
	   caddr_t (*init_screen_handle)();
	   int (*init_screen)();
	   int (*clear_screen)();
	   int (*scroll_screen)();
	   int (*blitc)();
	   int (*map_unmap_screen)();
	   int (*ioctl)();
	   void (*close)();
	   caddr_t screen_handle;
	   int (*set_get_power_level)();
	   int (*screen_private)();
	   int (*screen_private2)();
       } ws_screen_functions;

MEMBERS
  init_screen_handle
      Specifies a pointer to the driver routine that initializes the screen
      handle.

  init_screen
      Specifies a pointer to the driver routine that initializes the driver's
      screen handle.

  clear_screen
      Specifies a pointer to the driver routine that clears the graphics
      display.	This is a console driver function; you should implement it as
      a stub in the display device driver.

  scroll_screen
      Specifies a pointer to the driver routine that scrolls the graphics
      display when it is used as the console terminal.	This is a console
      driver function; you should implement it as a stub in the display
      device driver.

  blitc
      Specifies a pointer to the driver routine that displays a character on
      the graphics display when it is used as the console terminal.  This is
      a console driver function; you should implement it as a stub in the
      display device driver.

  map_unmap_screen
      Specifies a pointer to the driver routine that performs memory mapping.

  ioctl
      Specifies a pointer to an optional driver routine that handles a
      board-specific ioctl command.

  close
      Specifies a pointer to the driver routine that returns the graphics
      display to console mode.

  screen_handle
      Specifies the address of driver-specific information.

  set_get_power_level
      Specifies the address of an optional driver routine that performs DPMS
      power management.

  screen_private, screen_private2
      Reserved for future use by Compaq.

DESCRIPTION
  The ws_screen_functions data structure contains pointers to the routines
  that perform screen operations for the display driver.

FILES
  <sys/wsdevice.h>

SEE ALSO
  Data Structures: ws_screens(9s)

Index for Section 9

Alphabetical listing for W

Top of page