home *** CD-ROM | disk | FTP | other *** search
-
- CenterScreen
-
- (Commodity)
-
- by
-
- Stefan Sticht
-
- This program (binary), sourcecode, documentation is
-
- PUBLIC DOMAIN.
-
- You may do anything with it!
-
-
- Purpose of this commodity:
- --------------------------
- CenterScreen is a commodity, which centers the frontmost screen
- horizontally. If you have chosen an overscan resolution for your
- workbench screen in screenmode prefs, you may have already noticed,
- that normal width screens can be dragged horizontally with the mouse.
- It looks much nicer if those 640 point screens would be centered in
- the display. This does CenterScreen for you. Start CenterScreen and
- press left Amiga + c and the frontmost screen will be centered.
-
-
- Requirements:
- -------------
- This commodity requires at least Kickstart 37.#? and Workbench 37.#?.
- Please check this out using Version in the Shell or About from the
- Workbench's Workbench menu. You also need to have the
- commodities.library in your libs: directory.
-
-
- How to start a commodity:
- -------------------------
- First there are two basically different ways to start a commodity:
- via Workbench or via Shell.
-
- Starting it via Workbench is extrem simple: just doubleclick on
- its icon and the commodity gets started. Perhaps you might change
- some parameters of the commodity. You do this with tool types. Tool
- types can be changed by clicking at the commodities icon and selecting
- Information from the Workbench's Icon menu. In the window which opens
- you see a listview gadget in which all tool types are listed. Please
- refer to your Workbench documentation on how to change this tool
- types. Which parameters you can change for this specific commodity is
- described below.
- Please note that another double click on the commodity's icon
- forces the commodity to quit, if it's already running. Running two
- copies of CenterScreen at the same time isn't useful and therefore
- possible.
- To start a commodity via shell you type in its name. If you get
- an "Unknown command ???" error message, you have misspelled the
- commodity's name or the commodity isn't in your current directory or
- in the current search path. The easiest way is to change your current
- directory to the location of the commodity using the CD command. You
- can change parameters of a commodity by command line options. The
- available options are listed with ? as the first parameter:
-
- CenterScreen ?
-
- gives you a list of the command line options. The explanation of each
- option is below. Starting the commodity once more while it is already
- running forces the commodity to quit.
-
- If you want the commodity to be started at every boot-up, it's
- best to add this line to your User-Startup file:
-
- <path>CenterScreen <options>
-
- Don't forget to replace <path> by the path to the commodities's
- location and <options> by the options you want to change. For example
- add this line if your commodity is located in the Tools drawer of your
- boot disk:
-
- Tools/CenterScreen
-
- Another way to start the commodity at every boot-up is to drag its
- icon in the WBStartup drawer of your boot disk. Then the commodity
- gets started as if you had double clicked on its icon. But you have
- to add the tool type DONOTWAIT to the icon.
-
-
- Using Exchange:
- ---------------
- Exchange is the commodities controller program. With Exchange you can
- control all commodities: you can kill, disable, enable, show and hide
- commodities.
- Start the Exchange program, which usually is in the Utilities
- drawer of your boot disk, by double clicking its icon. Now you see a
- list of the available commodities. Select the commodity you want to
- control. The commodities title, description and status is shown now
- below the listview gadget.
- You can kill the commodity using the Kill gadget... If the
- commodity has a window to open, in which you usually change some
- parameters, you can open this window using Show. Hide closes this
- window. CenterScreen has no window, which can be opened.
-
-
- Changeable parameters:
- ----------------------
-
- CX_Priority:
- ------------
- You can specify the priority of the Commodity within the commodities
- queue using the tool type or commandline option CX_PRIORITY=<number>,
- where <number> is the decimal value for the priority. Default
- priority is 0.
-
- ACTION:
- -------
- With the tool type or commandline option ACTION=<string> you specify
- the ACTION, which centers a screen. <string> is an input description
- string as explained below. Default is "ACTION=lcommand c" (left Amiga
- key & c).
-
- Examples:
-
- CenterScreen "action=ralt help"
- CenterScreen "action=lcommand m"
- CenterScreen "action=f1"
-
-
- Input description strings
- -------------------------
-
- With input description strings you can specify almost any input
- action, for example the action lshift f1, which means that pressing
- the left shift and the f1 key together is the action. In this
- commodity you can specify the action to open the commodity's window,
- as described above.
-
- Input description strings have the following template:
-
- [class] (([-]qual)|syn)* [[-]upstroke] [highmap|ANSIcode]
-
- (* means zero or more occurances of the of the expression in brackets)
-
- class is one of the following strings:
- rawkey, rawmouse, event, pointerpos, timer, newprefs,
- diskremoved, diskinserted.
- If not specified, the class is taken to be "rawkey".
-
- qual is one of the strings:
- lshift, rshift, capslock, control, lalt, ralt, lcommand,
- rcommand, numericpad, repeat, midbutton, rbutton, leftbutton,
- relativemouse
- A preceding '-' means that the value of the corresponding
- qualifier is to be considered irrelevant.
-
- syn (synonym) is one of the strings: shift, caps, alt
- shift means "left or right shift"
- caps means "shift or capslock"
- alt means "either alt key"
-
- upstroke (literally "upstroke")
- if this token is absent, only downstrokes are considered
- for rawmouse (mousebuttons) and rawkey events. If it is
- present alone, only upstrokes count. If it preceded by
- '-' it means that both up and down strokes are included.
-
- highmap one of the strings:
- comma, space, backspace, tab, enter, return, esc, del, up,
- down, right, left, help, f1, f2, f3, f4, f5, f6, f7, f8, f9,
- f10, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, (, ), /, *, -, +
-
- ansicode a single character token is interpreted as a character code,
- which is looked up in the system default keymap.
-
-
- Special thanks to Jim Mackraz, who suggested this Commodity.
-
-
- Send bug-reports, enhancement-requests, questions, gifts(!) to:
- ---------------------------------------------------------------
- Stefan Sticht
- Bibereckerweg 40a
- D-8390 Passau 18
- FRG
-
- or (better) EMail to:
- cbmvax.commodore.com!cbmehq!cbmger!edith!sticht
- or IWSTICHT@ibm.rz.uni-passau.de
- Fido-Net: Stefan Sticht (2:242/77:4)
-
- Please include the version number of the commodity in every bug report.
- You get the version number using the Version command:
- Version [<path>]<commodity>
-
-