Print(4) Document and Media Exchange Message Sets Print(4)NAMEPrint - print a document
SYNOPSIS
[file] Print(in mediaType contents,
in boolean inquisitive,
in boolean covert
[in title docName]);
DESCRIPTION
The Print request causes the handler to print a document. The handler
must act as if the user had issued, (via the handler's user interface)
either a ``Print One'' or ``Print...'' command, depending on the value
of the inquisitive argument.
The contents argument is the contents of the document. If this argu‐
ment is unset (in other words, has a value of (char *)0), then the con‐
tents of the document are in the file named in the message's file
attribute. The data type (mediaType) of the contents argument should
be string, unless nulls are valid in the given media type, in which
case the data type must be bytes.
The inquisitive argument is a boolean value indicating whether the han‐
dler is allowed to block on user input while carrying out the request.
However, even if inquisitive is True, the handler is not required to
seek such input.
The covert argument is a boolean value indicating whether the handler
may make itself apparent to the user as it carries out the request. If
False, the recipient need not make itself apparent.
If both the inquisitive argument and the covert argument are True, the
recipient should attempt to limit its presence to the minimum needed to
receive any user input desired; for example, through iconification.
The docName argument contains the name of the document. If the docName
argument is absent and the file attribute is set, the file name is con‐
sidered to be the title of the document. This string would be suitable
for display in a window title bar, for example.
APPLICATION USAGE
The ttmedia_ptype_declare(3) function can be used to register for, and
help process, this message.
This message can be sent with the ttmedia_load(3) function.
EXAMPLES
To print a PostScript document, the application can send a request of
the form:
Print(in PostScript contents,
in boolean inquisitive,
in boolean covert);
with a first argument whose value is a vector of bytes such as:
%!\n/inch {72 mul} def...
The \n in the example represents the newline character.
To print a PostScript document contained in a file, the application can
send the Print request as above, with the file attribute set to the
relevant file and with the value of the first argument not set.
ERRORS
The ToolTalk service may return one of the following errors in process‐
ing the Print request:
TT_DESKTOP_ENOENT
The file that was alleged to contain the document does not
exist.
TT_DESKTOP_ENODATA
The in-mode contents argument had no value and the file
attribute of the message was not set.
TT_MEDIA_ERR_FORMAT
The document is not a valid instance of the media type.
SEE ALSOttmedia_ptype_declare(3), ttmedia_load(3); Intro, Status requests.
ToolTalk 1.3 1 March 1996 Print(4)
