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- Well, here it is: my first C program.
-
- What I wanted to do was put together a "killer demo" to impress my
- friends with my new Amiga's great graphics and sound. Not having the
- slightest idea how to do that, I thought I'd put a couple of canned
- things together. On my system, the "execute" file looked like this:
-
- cd dh0:paint.stuff/animation
- run showanim -c +2 TELLSTAR-ONE
- cd :tools/sounds/thriller
- run led
- wait 14
- run play thriller
-
- Now on my system at least, that would fire up a nifty anim I'd downloaded
- from CServe, plus a PD Sonix-player and a great rendition of "thriller"
- that a local BBS provided. With the "wait 14" in there, the two would
- come up simultaneously and blow everybody's socks off.
-
- Trouble was, I had to launch the damn thing from CLI. All these neat
- icons, and to make the machine do anything serious I had to type magic
- incantations into a text window. Some demo.
-
- Now, there may be a way to make a script like that execute from an
- icon, but I couldn't find out what it is. The few things I downloaded
- that sounded right turned out to have serious limitations: I had to
- type the lines into an icon INFO window (one of the more sophisticated
- text editors, don't you know), or "cd" wouldn't work, or.....
-
- Which is how Ixecute came to be.
-
- Ixecute can be named the default tool for any "project" icon. When the
- icon is clicked, the text file associated with it gets executed. Period.
- No games. My killer demo script works! Ixecute will even "run Pyro"
- without leaving a window hanging around!
-
- Using Ixecute is simple. Use your favorite text editor to create a CLI
- script. Test it by executing it. When it works, take a handy "project"
- icon and give it the same name, with a .info extension. Open the INFO
- window and make the default tool Ixecute. (Depending on where you PUT
- Ixecute, you may have to make it "SYS:c/Ixecute" or something like
- that, but you get the idea). Double-click and away you go!
-
- Expert mode:
-
- For reasons unclear, new CLI's wake up with their current directory
- set to df0:, even when SYS: is a hard drive or dfn:. To make things
- easy for script writers, Ixecute allows for this: it does not pass the
- actual script file to the CLI it creates; it really passes a file called
- ixec.temp that it creates in the SYS:t directory (and deletes on its way
- out, so you'll never see it). The file ixec.temp contains the
- line "cd SYS:", then your script, and then the line "endcli". If you
- promise to be good, Ixecute will bypass the temp file and directly
- execute your script file. If you forget to "cd" to your destination,
- or fail to "endcli", don't blame Ixecute for what happens. You "promise
- to be good" by typing the word "expert" into the Tool Types field in the
- icon's INFO window.
-
- I want you to know that adding that feature cost me several hours of
- sleep. If I'd just said in the docs: make sure you start with a "cd"
- and end with an "endcli", I wouldn't have needed it. If I'd just made
- everybody use the temp file, I wouldn't have needed it. But no -- my
- first C program was on a roll and I just HAD to figure out how to read
- that damn Tool Types field from inside a program three directories away.
- And having figured that out, I'm LEAVING THE FEATURE IN, even though
- bypassing the temp file only saves about 1.5 seconds.
-
- The inevitable Legal Stuff:
-
- Copyright 1988, Benson the Dog. Placed into the public domain by the
- author, who assumes no liability for its use or abuse. No warranties!
- If you use this program and you crash your system and lose six months of
- accounts receivable records, tough. You were warned: unattended CLI
- scripts can wreak havoc (you mean I typed "delete dh0:#?" ????).
-
- To those paranoid about viruses:
-
- I put the source code in the arc file. It was written for Lattice 4.0,
- but you Manx hackers can probably make it run. The best protection
- against viri is to only run things you compiled yourself from source
- you read youself. (Now watch some twit put a virus in the next rev of
- the compiler.)
-
-
- Bob Hahn
- April 26, 1988
- Cserve 70535,542
- Source TCU504
-