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Edit - compose or edit a document
[file Edit([out|inout] mediaType contents
[in title docName]);
The Edit request causes the handler to edit a document and reply with the
new contents when the editing is completed.
It is up to the handler to decide issues such as:
· When the editing operation can be deemed completed
· What user gesture signals the completion of the editing
· What the handling tool should do with itself after replying
If the handling tool supports some form of intermediate save operation
during editing, it must send a Deposit request back to the tool that
requested the Edit.
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
If the contents argument is of mode out, then a new document must be
composed and its contents returned in this argument.
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.
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.
To edit an X11 XBM bitmap, the application can send an Edit request with a
first argument whose vtype is XBM, and whose value is a string such as:
#define foo_width 44\n#define foo_height 94\n
The \n in the example represents the newline character. The notation is
the same as in the .
To edit an X11 XBM bitmap contained in a file, the application can send an
Edit request naming that file in its file attribute, with a first argument
whose vtype is XBM, and whose value is not set.
The ToolTalk service may return one of the following errors in processing
the Edit request:
The user overrode the Edit request. When an Edit request is failed with
TT_DESKTOP_ECANCELED, the document should not be updated as a result,
but rather should remain as it was before the failure reply was
The file that was alleged to contain the document does not exist.
The in-mode contents argument had no value and the file attribute of
the message was not set.
The document is not a valid instance of the media type.
ttmedia_ptype_declare(3), ttmedia_load(3); Intro, Display requests
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