# Choose Parameters

<- Option
[Ok]Show the explanation of the selected item and the button setting the corresponding parameter will appear.
[Save]Save the current parameters of dviout with giving a name, title and comment.
[Hide]Erace the selected item from the list (by changing the extension of the selected file to .pas
[Appear]Recover the selected item from the list of eraced items.
[Kill]Remove the selected item forever.
[->Hidden]Show the list of the eraced items.
[->Current]Return to the list of the current items.
[Edit]Edit the selected item.
[Cancel]Quit without changing any parameter value.
Show the list of the parameter files *.par in the subdirctory *.par of the directry of dviout, if they have Tiltes. Then one can select from the list to define the parameters.
By [Save] the current values of the parameters of dviout will be kept in a parameter file with a name, a title and explanation.
Here checking [All] means to keep all the parameters. Otherwise the parameters different from their default values will be kept. Checking [Registry] means to show the button to write the setting in the registry and they will become the initial setting of dviout.
The format of parameter files (-Set: is useful) is given in Q_S3 but moreover it is as follows:
The line starting with ; or # is a comment line.
If the first line starts with ;, then the top continuous block of lines starting ; is called a Header. In the Header,
If there exist lines starting with ;#, then the first line among them is the Tilte. But the line starting with ;#e is ignored under Japanese Windows and the line starting with ;#e is ignored under Japanese WIndows.
The lines starting ;; or ;` (max: 20 lines) in the Header will be shown in the dialog to read the corresponding parameter.
If there exists a line starting with ;` in the Header, then the button to write the Parameters in Registry is appeared in the dialog.
If there exists no such line, then the selected item in the original list will be set without the dialog.