Index for Section 9

Alphabetical listing for C

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close(9r)
NAME
  close - Graphics: Puts the display into console state when the Workstation
  Subsystem is closed

SYNOPSIS
  void (*ws_screen_functions->close)(
	  caddr_t screen_handle );

ARGUMENTS
  screen_handle
      Specifies the virtual address (handle) of device-specific information.
      Typically this is a pointer to a private data structure that may
      contain information such as the address of the hardware, state
      information, and other information that may be shared between drivers.
      The Workstation Subsystem allows separate handles for the cursor,
      colormap, and the screen functions.

DESCRIPTION
  The Workstation Subsystem calls the close function whenever the Workstation
  Subsystem is closed, unless the function is defined as NULL. The device
  driver should call this function when changing to console mode.

  You group the close function with the screen functions in the
  ws_screen_functions structure in /usr/sys/include/sys/wsdevice.h.

RETURN VALUES
  None

EXAMPLES
  The following code is from the Compaq implementation of close in the myvga
  example driver:

       void
       myvga_close(caddr_t screen_handle)
       {
	   register struct myvga_type *scp =
	       (struct myvga_type *)screen_handle;

	   if (myvga_developer_debug)
	       printf("myvga_close: entry\n");
       }







FILES
  /usr/sys/include/sys/workstation.h

  /usr/sys/include/sys/wsdevice.h

SEE ALSO
  Data Structures: ws_screen_functions(9s)

Index for Section 9

Alphabetical listing for C

Top of page