Arguments

 

display-id

   OpenVMS usage:identifier
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference

   Identifier of the virtual display to be affected. The display-id
   argument is the address of an unsigned longword that contains
   this identifier.
 

text

   OpenVMS usage:char_string
   type:         character string
   access:       read only
   mechanism:    by descriptor

   Text to be output. The text argument is the address of a
   descriptor pointing to the output string.
 

rendition-string

   OpenVMS usage:char_string
   type:         character string
   access:       read only
   mechanism:    by descriptor

   Optional bit mask string that controls the video attributes.
   The rendition-string argument is the address of a descriptor
   pointing to the bit mask string. Each attribute set causes the
   corresponding attribute to be set for the corresponding byte in
   the text string in the display. The following attributes can be
   specified for each byte using the rendition-string argument:

   SMG$M_BLINK     Displays blinking characters.
   SMG$M_BOLD      Displays characters in higher-than-normal
                   intensity.
   SMG$M_REVERSE   Displays characters in reverse video; that is,
                   using the opposite of the default rendition of
                   the virtual display.
   SMG$M_          Displays underlined characters.
   UNDERLINE
   SMG$M_          Specifies invisible characters; that is, the
   INVISIBLE       characters exist in the virtual display but do
                   not appear on the pasteboard.
 

rendition-complement

   OpenVMS usage:char_string
   type:         character string
   access:       read only
   mechanism:    by descriptor

   Optional bit mask string that controls the video attributes. The
   rendition-complement is the address of a descriptor pointing to
   the bit mask string. Each attribute set causes the corresponding
   attribute to be complemented for the corresponding byte in the
   text string in the display.

   If the same bit in the same byte is specified in both the
   rendition-string and rendition-complement arguments, rendition-
   string is evaluated first, followed by rendition-complement.
   By using these two parameters together, you can independently
   control each attribute in a single routine call. On a single-
   attribute basis, you can cause the following transformations:

   Set  Complement Action

   0    0          Attribute set to default
   1    0          Attribute on
   0    1          Attribute set to complement of default setting
   1    1          Attribute off
 

line-advance

   OpenVMS usage:longword_signed
   type:         longword (signed)
   access:       read only
   mechanism:    by reference

   Optional number of lines to advance after output. The line-
   advance argument is the address of a signed longword containing
   this number.
 

flags

   OpenVMS usage:mask_longword
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference

   Optional bit mask that specifies the action to take if the text
   does not fit on the line. The flags argument is the address of
   an unsigned longword that contains the flag. The flags argument
   accepts the following values:

   0                  Does not wrap (default).
   SMG$M_WRAP_CHAR    Wraps at the last character on the line.
   SMG$M_WRAP_WORD    Wraps at the last space on the line.
 

direction

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference

   Optional direction specifier. The direction argument is the
   address of an unsigned longword that contains the direction code
   specifying the scrolling direction, if scrolling is necessary.
   Valid values are SMG$M_UP (default) and SMG$M_DOWN.
 

character-set

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference

   Specifies the default character set for all text in this virtual
   display. The character-set argument is the address of an unsigned
   longword that contains the character set code. Valid values are
   SMG$C_ASCII (default) and SMG$C_SPEC_GRAPHICS.