Arguments

 

number-of-rows

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

   Specifies the number of rows in the newly created virtual
   display. The number-of-rows argument is the address of a signed
   longword that contains the desired number of rows.
 

number-of-columns

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

   Specifies the number of columns in the newly created virtual
   display. The number-of-columns argument is the address of a
   signed longword that contains the desired number of columns.
 

display-id

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

   Receives the display-id of the newly created virtual display. The
   display-id argument is the address of an unsigned longword into
   which is written the display identifier.
 

display-attributes

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

   Receives the current default display attributes. The optional
   display-attributes argument is the address of an unsigned
   longword into which the current display attributes are written.

   Valid values for display-attributes are as follows:

   SMG$M_BORDER       Specifies a bordered display. If omitted, the
                      display is not bordered.
   SMG$M_BLOCK_       Specifies a block-bordered display. If
   BORDER             omitted, the display is not bordered.
   SMG$M_DISPLAY_     Specifies that control characters such as
   CONTROLS           carriage return and line feed are displayed as
                      graphic characters, if your terminal supports
                      them.
   SMG$M_PROTECT_     Instructs the Screen Management Facility
   DISPLAY            to return an error (SMG$_DSPIN_USE) if an
                      SMG$ call is made from an AST routine that
                      interrupted an SMG$ call on the same display.
   SMG$M_TRUNC_ICON   Specifies that an icon (generally a diamond
                      shape) is displayed where truncation of a line
                      exceeding the width of the virtual display has
                      occurred.
 

video-attributes

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

   Specifies the default rendition to be applied to all output in
   this virtual display unless overridden by a call to a specific
   output routine (for example, SMG$CHANGE_RENDITION). The video-
   attributes argument is the address of an unsigned longword that
   contains the video attributes mask.

   Valid values for this argument are as follows:

   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_UNDERLINE    Displays underlined characters.
   SMG$M_INVISIBLE    Specifies invisible characters; that is, the
                      characters exist in the virtual display but do
                      not appear on the pasteboard.
   SMG$M_USER1        Displays user-defined attributes.
   through
   SMG$M_USER8
 

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 specifier. Valid values
   are SMG$C_ASCII (the default), and SMG$C_SPEC_GRAPHICS.