181 lines
6.1 KiB
TeX
181 lines
6.1 KiB
TeX
\section{Built-in Module \sectcode{macfs}}
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\bimodindex{macfs}
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\renewcommand{\indexsubitem}{(in module macfs)}
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This module provides access to macintosh FSSpec handling, the Alias
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Manager, finder aliases and the Standard File package.
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Whenever a function or method expects a \var{file} argument, this
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argument can be one of three things:\ (1) a full or partial Macintosh
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pathname, (2) an FSSpec object or (3) a 3-tuple \code{(wdRefNum,
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parID, name)} as described in Inside Mac VI\@. A description of aliases
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and the standard file package can also be found there.
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\begin{funcdesc}{FSSpec}{file}
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Create an FSSpec object for the specified file.
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\end{funcdesc}
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\begin{funcdesc}{RawFSSpec}{data}
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Create an FSSpec object given the raw data for the C structure for the
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FSSpec as a string. This is mainly useful if you have obtained an
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FSSpec structure over a network.
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\end{funcdesc}
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\begin{funcdesc}{RawAlias}{data}
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Create an Alias object given the raw data for the C structure for the
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alias as a string. This is mainly useful if you have obtained an
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FSSpec structure over a network.
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\end{funcdesc}
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\begin{funcdesc}{FInfo}{}
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Create a zero-filled FInfo object.
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\end{funcdesc}
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\begin{funcdesc}{ResolveAliasFile}{file}
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Resolve an alias file. Returns a 3-tuple \code{(\var{fsspec}, \var{isfolder},
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\var{aliased})} where \var{fsspec} is the resulting FSSpec object,
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\var{isfolder} is true if \var{fsspec} points to a folder and
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\var{aliased} is true if the file was an alias in the first place
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(otherwise the FSSpec object for the file itself is returned).
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\end{funcdesc}
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\begin{funcdesc}{StandardGetFile}{\optional{type\, ...}}
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Present the user with a standard ``open input file''
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dialog. Optionally, you can pass up to four 4-char file types to limit
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the files the user can choose from. The function returns an FSSpec
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object and a flag indicating that the user completed the dialog
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without cancelling.
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\end{funcdesc}
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\begin{funcdesc}{PromptGetFile}{prompt\optional{\, type\, ...}}
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Similar to \var{StandardGetFile} but allows you to specify a prompt.
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\end{funcdesc}
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\begin{funcdesc}{StandardPutFile}{prompt\, \optional{default}}
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Present the user with a standard ``open output file''
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dialog. \var{prompt} is the prompt string, and the optional
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\var{default} argument initializes the output file name. The function
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returns an FSSpec object and a flag indicating that the user completed
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the dialog without cancelling.
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\end{funcdesc}
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\begin{funcdesc}{GetDirectory}{\optional{prompt}}
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Present the user with a non-standard ``select a directory''
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dialog. \var{prompt} is the prompt string, and the optional.
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Return an FSSpec object and a success-indicator.
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\end{funcdesc}
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\begin{funcdesc}{FindFolder}{where\, which\, create}
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Locates one of the ``special'' folders that MacOS knows about, such as
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the trash or the Preferences folder. \var{Where} is the disk to search
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(\code{0x8000} for the boot disk), \var{which} is the 4-char string
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specifying which folder to locate. Setting \var{create} causes the
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folder to be created if it does not exist. Returns a \code{(vrefnum,
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dirid)} tuple. See Inside Mac VI for a complete description, including
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4-char names.
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\end{funcdesc}
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\subsection{FSSpec objects}
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\renewcommand{\indexsubitem}{(FSSpec object attribute)}
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\begin{datadesc}{data}
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The raw data from the FSSpec object, suitable for passing
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to other applications, for instance.
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\end{datadesc}
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\renewcommand{\indexsubitem}{(FSSpec object method)}
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\begin{funcdesc}{as_pathname}{}
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Return the full pathname of the file described by the FSSpec object.
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\end{funcdesc}
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\begin{funcdesc}{as_tuple}{}
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Return the \code{(\var{wdRefNum}, \var{parID}, \var{name})} tuple of the file described
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by the FSSpec object.
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\end{funcdesc}
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\begin{funcdesc}{NewAlias}{\optional{file}}
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Create an Alias object pointing to the file described by this
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FSSpec. If the optional \var{file} parameter is present the alias
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will be relative to that file, otherwise it will be absolute.
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\end{funcdesc}
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\begin{funcdesc}{NewAliasMinimal}{}
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Create a minimal alias pointing to this file.
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\end{funcdesc}
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\begin{funcdesc}{GetCreatorType}{}
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Return the 4-char creator and type of the file.
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\end{funcdesc}
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\begin{funcdesc}{SetCreatorType}{creator\, type}
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Set the 4-char creator and type of the file.
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\end{funcdesc}
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\begin{funcdesc}{GetFInfo}{}
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Return a FInfo object describing the finder info for the file.
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\end{funcdesc}
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\begin{funcdesc}{SetFInfo}{finfo}
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Set the finder info for the file to the values specified in the
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\var{finfo} object.
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\end{funcdesc}
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\subsection{alias objects}
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\renewcommand{\indexsubitem}{(alias object attribute)}
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\begin{datadesc}{data}
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The raw data for the Alias record, suitable for storing in a resource
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or transmitting to other programs.
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\end{datadesc}
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\renewcommand{\indexsubitem}{(alias object method)}
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\begin{funcdesc}{Resolve}{\optional{file}}
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Resolve the alias. If the alias was created as a relative alias you
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should pass the file relative to which it is. Return the FSSpec for
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the file pointed to and a flag indicating whether the alias object
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itself was modified during the search process.
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\end{funcdesc}
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\begin{funcdesc}{GetInfo}{num}
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An interface to the C routine \code{GetAliasInfo()}.
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\end{funcdesc}
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\begin{funcdesc}{Update}{file\, \optional{file2}}
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Update the alias to point to the \var{file} given. If \var{file2} is
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present a relative alias will be created.
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\end{funcdesc}
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Note that it is currently not possible to directly manipulate a resource
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as an alias object. Hence, after calling \var{Update} or after
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\var{Resolve} indicates that the alias has changed the Python program
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is responsible for getting the \var{data} from the alias object and
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modifying the resource.
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\subsection{FInfo objects}
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See Inside Mac for a complete description of what the various fields
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mean.
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\renewcommand{\indexsubitem}{(FInfo object attribute)}
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\begin{datadesc}{Creator}
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The 4-char creator code of the file.
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\end{datadesc}
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\begin{datadesc}{Type}
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The 4-char type code of the file.
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\end{datadesc}
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\begin{datadesc}{Flags}
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The finder flags for the file as 16-bit integer.
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\end{datadesc}
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\begin{datadesc}{Location}
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A Point giving the position of the file's icon in its folder.
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\end{datadesc}
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\begin{datadesc}{Fldr}
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The folder the file is in (as an integer).
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\end{datadesc}
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