CDE/cde/doc/C/guides/man/man4/Print.sgm

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<RefMeta>
<RefEntryTitle>Print</RefEntryTitle>
<ManVolNum>special file</ManVolNum>
</RefMeta>
<RefNameDiv>
<RefName><Symbol Role="Message">Print</Symbol></RefName>
<RefPurpose>print a document
</RefPurpose>
</RefNameDiv>
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<!-- (c) Copyright 1993, 1994, 1995 International Business Machines Corp.-->
<!-- (c) Copyright 1993, 1994, 1995 Sun Microsystems, Inc.-->
<!-- (c) Copyright 1993, 1994, 1995 Novell, Inc.-->
<RefSynopsisDiv>
<Synopsis>[<Symbol Role="Variable">file</Symbol>] Print(in <Emphasis>mediaType contents</Emphasis>,
        in boolean <Emphasis>inquisitive</Emphasis>,
        in boolean <Emphasis>covert</Emphasis>
        [in title <Emphasis>docName</Emphasis>]);
</Synopsis>
</RefSynopsisDiv>
<RefSect1>
<Title>DESCRIPTION</Title>
<Para>The
<Symbol Role="Message">Print</Symbol> 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
<Emphasis>inquisitive</Emphasis> argument.
</Para>
<Para>The
<Emphasis>contents</Emphasis> argument
is the contents of the document.
If this argument is unset
(in other words, has a value of
<Literal>(char *)0</Literal>), then the contents of the document are in
the file named in the message's
<Symbol Role="Variable">file</Symbol> attribute.
The data type
(<Emphasis>mediaType</Emphasis>) of the
<Emphasis>contents</Emphasis> argument should be
<Literal>string</Literal>, unless nulls are valid in the given media type,
in which case the data type must be
<Literal>bytes</Literal>.</Para>
<Para>The
<Emphasis>inquisitive</Emphasis> argument is a
<Literal>boolean</Literal> value
indicating whether the handler is allowed to block on user input
while carrying out the request.
However, even if
<Emphasis>inquisitive</Emphasis> is True, the handler is not required to seek such input.
</Para>
<Para>The
<Emphasis>covert</Emphasis> argument is a
<Literal>boolean</Literal> 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.
</Para>
<Para>If both the
<Emphasis>inquisitive</Emphasis> argument and the
<Emphasis>covert</Emphasis> 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.
</Para>
<Para>The
<Emphasis>docName</Emphasis> argument contains the name of the document.
If the
<Emphasis>docName</Emphasis> argument is absent and the
<Symbol Role="Variable">file</Symbol> 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.
</Para>
</RefSect1>
<RefSect1>
<Title>APPLICATION USAGE</Title>
<Para>The
&cdeman.ttmedia.ptype.declare; function can be used to register for,
and help process, this message.
</Para>
<Para>This message can be sent with the
&cdeman.ttmedia.load; function.
</Para>
</RefSect1>
<RefSect1>
<Title>EXAMPLES</Title>
<Para>To print a PostScript document, the application can send a request of the form:
</Para>
<InformalExample Remap="indent">
<ProgramListing>Print(in PostScript <Emphasis>contents</Emphasis>,
        in boolean <Emphasis>inquisitive</Emphasis>,
        in boolean <Emphasis>covert</Emphasis>);
</ProgramListing>
</InformalExample>
<Para>with a first argument whose value is a vector of bytes such as:
</Para>
<InformalExample Remap="indent">
<ProgramListing>%!&bsol;n/inch {72 mul} def...
</ProgramListing>
</InformalExample>
<Para>The
<Literal>&bsol;n</Literal> in the example represents the newline character.
The notation is the same as in the &str-Z3;.
</Para>
<Para>To print a PostScript document contained in a file,
the application can send the
<Symbol Role="Message">Print</Symbol> request as above,
with the
<Symbol Role="Variable">file</Symbol> attribute set to the relevant file
and with the value of the first argument not set.
</Para>
</RefSect1>
<RefSect1>
<Title>ERRORS</Title>
<Para>The ToolTalk service may return one of the following errors
in processing the
<Symbol Role="Message">Print</Symbol> request:
</Para>
<VariableList>
<VarListEntry>
<Term>TT_DESKTOP_ENOENT</Term>
<ListItem>
<Para>The file that was alleged to contain the document does not exist.
</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>TT_DESKTOP_ENODATA</Term>
<ListItem>
<Para>The in-mode
<Emphasis>contents</Emphasis> argument had no value and the
<Symbol Role="Variable">file</Symbol> attribute
of the message was not set.
</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>TT_MEDIA_ERR_FORMAT</Term>
<ListItem>
<Para>The document is not a valid instance of the media type.
</Para>
</ListItem>
</VarListEntry>
</VariableList>
</RefSect1>
<RefSect1>
<Title>SEE ALSO</Title>
<Para>&cdeman.ttmedia.ptype.declare;, &cdeman.ttmedia.load;; <Emphasis>Intro</Emphasis>, <Symbol Role="Message">Status</Symbol> requests.
</Para>
</RefSect1>
</RefEntry>
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