Arguments

 

display-id

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

   Specifies the virtual display affected. The display-id argument
   is the address of an unsigned longword that contains the display
   identifier.

   The display identifier is returned by SMG$CREATE_VIRTUAL_DISPLAY.
 

text

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

   Characters to be written to the virtual display. The text
   argument is the address of a descriptor pointing to the character
   string.
 

start-row

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

   Specifies the row at which output begins. If start-row is
   omitted, output begins on the current row. The start-row argument
   is the address of a signed longword that contains the row number.
 

start-column

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

   Specifies the column at which output begins. If start-column is
   omitted, output begins on the current column. The start-column
   argument is the address of a signed longword that contains the
   column number.
 

flags

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

   Optional bit mask that specifies the action to take before the
   specified text is output. The flags argument is the address of
   an unsigned longword bit mask that contains the flag. The flags
   argument accepts the following values:

   0                  Does not erase line (the default).
   SMG$M_ERASE_TO_    Erases the remaining part of the line.
   EOL
   SMG$M_ERASE_LINE   Erases the entire line.
 

rendition-set

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

   Attribute specifier. The optional rendition-set argument is
   the address of a longword bit mask in which each attribute set
   causes the corresponding attribute to be set in the display. The
   following attributes can be specified using the rendition-set
   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$M_          Specifies invisible characters; that is, the
   INVISIBLE       characters exist in the virtual display but do
                   not appear on the pasteboard.
   SMG$M_USER1     Displays user-defined attributes.
   through
   SMG$M_USER8

   The display-id argument must be specified when you use the
   rendition-set argument.
 

rendition-complement

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

   Attribute complement specifier. The optional rendition-
   complement argument is the address of a longword bit mask in
   which each attribute set causes the corresponding attribute to be
   complemented in the display. All attributes that can be specified
   with the rendition-set argument can be complemented with the
   rendition-complement argument. The display-id argument must be
   specified when you use the rendition-complement argument.

   The optional arguments rendition-set and rendition-complement
   let the user control the attributes of the virtual display. The
   rendition-set argument sets certain virtual display attributes,
   while rendition-complement complements these attributes. If the
   same bit is specified in both the rendition-set and rendition-
   complement parameters, rendition-set is evaluated first, followed
   by rendition-complement. By using these two parameters together,
   the user can control each virtual display attribute in a single
   procedure call. On a single-attribute basis, the user 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
 

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$C_ASCII (the default) and SMG$C_SPEC_GRAPHICS.