Daemon program

I want to how to write a daemon program with CodeWarrior.When MacOS system startup, this program can be load and run on backgroud.
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You need to do two things: (1) make the app a background only application, and (2) have it start running on startup.

To do the former, select Edit-><project> Settings, and select the <PPC>Target tab.  Click on the "SIZE flags" icon, and select the "onlyBackground" option.  This makes your app a faceless background (daemon) application.

To do the latter, after building your app, place an alias in the Startup Items folder in your System Folder.  This will cause it to be started on every reboot or startup.

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FifthAuthor Commented:
I wish the daemon program loaded by System as System extension, not the Shortcut way.
Why do you want it to be an extension?

Putting an alias (or the daemon) in the Startup Items folder accomplishes everything you say you want - loading automatically on startup and running in the background.

Making it an extension might be appropriate depending on what you want to do, but you haven't told us anything that makes an extension necessary.
FifthAuthor Commented:
thanks for your suggestion!
thanks for your help!
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System Programming

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