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The MirageOS User's Manual


Options Screen & Items :  Set System Interface


This section of the Options Screen contains the System Interface settings of MirageOS, which determine the current Interface that should be displayed and show compatible programs. The option items in this section are few, but they are an important aspect of the shell, which gives the user the ability to use External Interface Files other than the Program Manager. The top two option items are as follows: Use Prog Manager, and Run External GUI, and the third item is a command that lets you browse for any GUI files on the calculator and select one to use. These things can be viewed from the screenshot on the right, and each of these items are explained in detail lower on this page.
   

Use Prog Manager:         Default Setting: ON
   
This option selects the Program Manager as the current Interface you want to view in MirageOS. This is opposed to one of the External GUI, and it is the built-in Interface that can be used at any time, if no other Interfaces are located on your calculator. Pressing the Enter or 2nd keys on this option will not toggle the 'x' box like other options, but will turn this Interface On for use, any time you select this option item. Doing so will also remove the 'x' from the next option item for External GUI Files. This option is On by default because we want user's to view the Program Manager first, even if they have other Interfaces on their calculator, and those Interfaces can be selected at will, from the other option items explained below.


Run External GUI:         Default Setting: OFF
   
This option selects for an External Graphical User Interface to be used as the current Interface you want to view in MirageOS. Using one of these as opposed to the Program Manager allows the user several other optional display methods that they can view their programs from. Pressing the Enter or 2nd keys on this option will not toggle the 'x' box like other options, but will turn this Interface On for use, any time you select this option item. Doing so will also remove the 'x' from the previous option item about using the Program Manager.

If this option is enabled, and No External GUI File was selected or none could be found on your calculator, then the option states' will stay as you set them, but upon leaving the Options Screen will send you to the Program Manager. If the current External GUI File you are viewing in MirageOS has been deleted from your calculator between runs of the shell, then MirageOS will go back to the Program Manager by default. This option is reset by default incase the user has no External GUI Files on their calculator, and since we want the Program Manager to be the initial Interface for the user.


Select Interface File:    Option Command Process
   
This Option Screen command allows the user to choose one of the External GUI Files for use in MirageOS. Pressing Enter or 2nd on this option item will remove the arrow cursor from the Options Screen, and pass control down to the box at the bottom of this screen by Inverting the color of its text. The user can then press Right or Left to browse through any existing External GUI Files on the calculator. Pressing Enter or 2nd at that point will choose the current Interface name, set the color of the text back to normal, and then pass control back to the Options Screen arrow cursor.

   
If no External GUI Files can be found by MirageOS on your calculator, then the message "No GUI Files Found" will appear in the box at the bottom of the screen. Choosing this option item will pass control to this box still, but the Right and Left keys will not function, since there are no other External GUI Files to browse to. This message can be seen from the screenshot to the right. If other External GUI Files do exist on your calculator, but you haven't chosen one yet, then the message "No GUI File Chosen" will be displayed until you press Right to browse for a new file. This message can be seen from the screenshot at the top of this page.


Summary of Keys for Selecting An Interface File:

Right/Left:  Find new GUI File.   Enter/2nd:  Select GUI File.


Below are a few more screenshots of this Options Screen, showing the other four External GUI Files that exist. The text describing each of these Interfaces are shown being currently selected, and the text for each are centered in the box.

           



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Last Modified: 2002-09-03 22:05:45 GMT