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Print(4)
CDE
NAME
Print - 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 argument is
unset (in other words, has a value of (char*)0 then the contents 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 handler
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
considered 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 processing
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 ALSO
ttmedia_ptype_declare(3), ttmedia_load(3); Intro, Status requests
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Index for Section 4 |
|
 |
Alphabetical listing for P |
|
 |
Top of page |
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