Program Switcher is a useful control that allows you to switch between the running programs on your System 7 or greater Mac via simple two-key keystroke. This feature was inspired by the same Windows functionality, but I have improved on it and made an unique and fully configurable control panel which makes switching applications on the Macintosh as simple as pressing some keys.
Instructions
Program Switcher requires System 7 or greater. To install it, just drag the control panel to your system folder icon and "drop." Restart your computer. To use, hold down the activating key (by default, the option key) and then tap the switching key (tab key). A window will appear displaying the next program running on your Macintosh. While still holding the activating key (option key) down, tapping the switching key (tab key) again shows the program after that. When the program you want to switch to is currently being displayed by Program Switcher, let go of the activating key (option key) and that program will be brought to the front. During the switching process, you may see the previous application displayed by tapping the shift key while still holding down the activating key. If you would like to cancel out of the switching process and immediately return to the original application you were in, release the activating key while still holding down the switching key.
To customize your settings, open the Program Switcher control panel itself. You will see that there are several options that you may use to customize Program Switcher╒s performance with. They are:
Control Keys: Under this option are two pop-up menus, one titled ╥Activator╙ and the other ╥Switcher.╙ With these menus, you can set the activating and switching keys (respectively).
Hide Other Applications: Checking this check box causes Program Switcher to hide all other applications after an application switch has been performed. Checking the Always checkbox causes this feature to be active whenever you switch applications, even if you performed the switch with out Program Switcher (i.e., you used the application menu). You may also toggle this feature on or off for a particular switch by holding down the space bar when letting go of the activator key.
Exclude Certain Applications: Checking this check box allows Program Switcher to exclude certain applications from being displayed during the switching process. You must specify the applications you wish Program Switcher to exclude. This option is useful if you have some applications that always run but you may not want to switch to that often (for example, Before Dark). Leave this option unchecked to make Program Switcher display all running applications always.
Set Applications╔: Clicking this button brings up a dialog in which you may specify the applications for Program Switcher to exclude if the Exclude Certain Applications option is checked.
Set Display Window Attributes╔: Clicking this button brings up a dialog in which you may customize the appearance of the window that Program Switcher displays when the switching process is taking place. You may set the font and font size that Program Switcher uses to write the application name with, the specific type of window that Program Switcher displays, the background color of the window, whether Program Switcher displays the applications╒ icons or not, and the size of the application icon cache that Program Switcher uses. The application icon cache saves an application╒s icon in RAM in order to speed up the display of the switching window. This cache requires about 3K of RAM for each application icon. The required RAM is allocated in your system software╒s memory block. If your RAM situation is tight, just shut off this cache and all of it╒s memory will be freed. When the cache is shut off, Program Switcher will get an application╒s icon from the hard drive each time it is displayed.
I have paid my shareware fee!: Check this checkbox only after you have paid your shareware fee.
Program Switcher always displays the last program that you were working in first when starting the switching process. If that application is no longer running, then Program Switcher displays the first application in the System╒s applications menu.
Program Switcher has a feature which allows you to tell a program to quit during the switching process. To do this, when the program you want to quit is displayed in the switching window, press the key for the letter 'Q' while you are still holding down the activator key. Program Switcher will then draw an X over the program's icon indicating that it will send the program a Quit Apple Event when the switching process is over. If you later decide during the switching process that you do not want to quit that application, when it's icon (with the X) is currently being displayed by Program Switcher, press 'Q' again. This will then remove the X from the icon and Program Switcher will not quit the program ('Q' is essentially a toggle for the X). Once you quit the switching process (either by releasing the activator key or by canceling out), Program Switcher will send every application you marked with an X a Quit Apple Event. Please note that is you disable the displaying of the application icon in the switching window, Program Switcher will indicate the programs to be quitted from by underlining the name.
Program Switcher is ╥fat.╙ The patches it makes to the MacOS are made in either 68000 or Power PC code, depending on the machine it is running on. If Program Switcher is running on a Power PC, it╒s start up icon will be modified with small red triangles.
Shareware Information
Program Switcher is not free. If you use Program Switcher for more than one week, you must pay the US$10 registration fee. You may do this by using the enclosed Register application. Be sure to follow Register╒s instructions carefully. If you are using this program to pay by check, be sure to make your checks out to ╥Kagi Shareware.╙ Also, please be sure to send your payments to the address listed on the form that the Register program produces -- please do not send payments to be processed by Kagi Shareware directly to me.
If you are on CompuServe, you can register Program Switcher online. Type GO SWREG for more information. Program Switcher's registration code is 6209. CompuServe only allows single user license registrations.
Site licensing and customizations are available. The Register program has two options for site licenses: Regular and "World Wide". If you want to get a site license that allows your employees (or students, if you are a school) to install Program Switcher on their personal computers, you must get a "World Wide" license.
Custom about boxes are available for either type of site license. Please arrange this in advance.
You may freely distribute Program Switcher as long as this package is kept fully intact and no modifications or additions are made. Companies who distribute shareware for profit by charging for the media that they distribute it on must contact me prior to including Program Switcher in their product and obtain permission.
Pacific HiTech is already granted permission to distribute Program Switcher because they are responsible in making their customers realize exactly what they did buy (the CD-ROM) and what they did not buy. They are also diligent in sending authors complimentary CDs containing their works. If you want to support shareware, also support the companies who themselves support the shareware ideal.
Contacting the Author
You may contact me through e-mail at:
mailto:kamprath@kagi.com
Since I move often (I'm in the military), I do not list my postal address here. If want to mail me something, please contact me by e-mail first to obtain my postal address.
WARRANTY
USE OF THIS PRODUCT, PROGRAM SWITCHER, IMPLIES THAT YOU WILL HOLD MICHAEL F. KAMPRATH HARMLESS TO ANY DAMAGES CAUSED BY THE PERFORMANCE OF THIS PRODUCT. YOU ALSO AGREE THAT MICHAEL F. KAMPRATH CAN NOT BE HELD LIABLE FOR ANY OTHER DAMAGES YOU MAY INCUR BY THE USE OF THIS PRODUCT. MICHAEL F. KAMPRATH PROVIDES NO WARRANTY, WHETHER EXPRESSED OR IMPLIED, OF THIS PRODUCT, INCLUDING IT╒S MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
"Windows" is a trademark of that company run by Bill Gates.
History
v1.0.0: 3 October 1994: Initial Release. Cool.
v1.0.1: 15 October 1994: Started to address the problems OTPS has with DAs. Their icons now display when opt-tabbing, but you still can't opt-tab out of a DA. I'm working on this, but I don't have much time to address it right now.
v1.5.0: 5 January 1995: Improved the code so that it now works with DAs properly! I also produced a Power PC version.
v1.5.1: 7 January 1995: Fixed a problem that caused periodic crashes when one of the serial ports was in use (for you programmers, I was allocating memory at interrupt time -- BAD).
v1.5.2: 17 January 1995: First another memory problem plus made the key sequence customizable. Changed the name from "Option Tab Program Switcher" to "Program Switcher" to reflect this.
v2.0.0: 1 February 1995: Turned Program Switcher in a CDEV and added application hiding option. Added "remember last application" to code. Optimized code. Added a preference file.
v2.0.1: 7 February 1995: Fixed a nasty bug that caused alot of people to be unable to soft shutdown their computer. I sincerely apologize for turning the public at large into a group of beta-testers. Also fixed a code logic error which sometimes allowed the current front proccess to be displayed first when iniating the switching mechanism. One bug still exists, though. This is the fault of my compiler (CodeWarrior). Basically, a 65K memory block gets allocated in the system heap each time you open the control panel. This block never gets disposed. Therefore, do not open the control panel too often. I have reported this problem to MetroWerks and as soon as a fix is released, I will recompile and release an improved version.
v2.0.2: 10 February 1995: Well, the "extra memory block" problem was not a "bug" in the true sense of the word. MW pointed out to me how to dispose of it and this version now get's rid of all memory blocks it does not need.
v2.1.0: 27 Fenruary 1995: I tweeked the switching code a little. The current application will not be displayed until all the other applications have been cycled through at least once. I also added the options to set the display window font. Lessened the memory requirements of the control panel. Fixed a problem with the inability to shutdown.
v2.1.1: 1 March 1995: I got promoted to First Lieutenant today. I also tweeked the switching code a little more so it wouldn't show the same application twice in a row (as was the case with only 2 running applications).
v2.1.2: 31 August 1995: Updated my e-mail address. No changes to the control panel otherwise.
v2.1.3: 2 September 1995: Ooops! There was one internal change to v2.1.2 that I screwed up -- Program Switcher would not load. All is well now.
v2.1.4: 3 September 1995: Well, mark it down in the lessons learned book. All I was trying to do was update the e-mail address in v2.1.1 and recompile with a newwer version of CodeWarrior. Versions 2.1.2 and 2.1.3 were abortive attempts at doing this. Assuming my task at hand was trivial, I did not ensure that either version was fully functional before releasing them. Well, I put some time in this one and I have verified that it works at least as well as v2.1.1, and it has the updated e-mail address.
v2.1.5: 13 September 1995: Added the Kagi Shareware Register program to the archive. This allows credit card registrations.
v3.0.0: 5 October 1995: Added a whole multitude of features, including the ability to exclude certain applications, a ╥reversing╙ key, more options for the display window, and a ╥fat╙ init. This version was also a complete rewrite of the code for Program Switcher. It╒s ╥hackish╙ roots are gone and it is now a fully polished product.
v3.0.1: 6 October 1995: Added an option in the Set Applications╔ dialog to allow adding any running process to the applications to be excluded list. This is useful for adding the Finder and INIT based processes, such as QuickKeys, or even applications you are just to lazy to find on disk. Also fixed a memory leak and a bug which caused problems with applications that made improper assumtions about what the current front window is.
v3.0.2: 21 October 1995: Fixed a minor bug in the Set Display Window Attributes╔ in which the font size menu wasn╒t updating properly. Also added the backslash key in the swicthing key menu for all you lefties out there.
v3.1.0: 5 November 1995: Added three new features: 1. Ability to turn off the display of the applications╒ icons (perfect for PowerBook users), 2. A method to cancel out of a switch, and 3. a hack that finally defeats Microsoft Excel╒s greed for the keyboard -- that is, Program Switcher now works with Microsoft Excel.
v3.2.0: 30 November 1995: Added Balloon Help and an application icon cache.
v3.2.1: 1 December 1995: Fixed a cosmetic bug that prevented people from seeing the icon cache size.
v3.3.0: 14 January 1996: Added several features: "Hide Always," the hide others toggle with the space bar, and the quit application key stroke.
