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The suggestion to use the clipboard as an IPC method is a pretty sad commentary. The clipboard is a user interface concept, not another anonymous pipe you can open between two processes.

Scenario: The user starts your scripts, then goes on to do something entirely different, and on the first Ctrl+C, hoses your scripts. Of course, it's not obvious that the scripts have failed, and it probably won't be obvious why they failed. Unless the user does a Ctrl+V at some point, and chunks of perl object data are spewed into their document.

From an architectural point of view, it's merely a lack of thought about the data flow: other processes may poison or be poisoned by your use of that particular IPC channel. From a user design point of view, it's damaging the user interaction model by subverting the user's metaphor to grasp of what's going on in the computer.

Poking stuff into the clipboard is pretty cool: when the user directs the activity. Grabbing stuff from the clipboard is pretty cool: when the user directs the activity. The APIs were made quick and simple, to facilitate application designers who wanted to make their apps quick and simple.

--
[ e d @ h a l l e y . c c ]


In reply to Re: Re: Shared variables under win32? by halley
in thread Shared variables under win32? by xiper

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