Article View: comp.sys.mac
Article #32046Re: Desktop icon mask
From: Bob Hablutzel
Date: Mon, 12 Sep 1988 12:58
Date: Mon, 12 Sep 1988 12:58
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> The way that the finder handles the icon mask in the latest system software > has changed. Previously it did an XOR with the mask to show the selected > icon. However this is not so anymore. Does anyone know what the actual > alogorithm is now. This has changed as part of the color support for new machines. In a color environment, XORing with the hardcoded mask leads to results that Apple's engineers didn't like. The current algorithm involves figuring out an all solid black mask from the first ICON in the ICN# resource, and XORing with that. This was foreshadowed in TN 147, but I couldn't find any reference which explained this. Bob Hablutzel BOB@NUACC.ACNS.NWU.EDU Disclaimer: <Deleted on request of my lawyers>
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!lll-tis!ames!mailrus!uwmcsd1!uxc!tank!nucsrl!bob From: bob@eecs.nwu.edu (Bob Hablutzel) Newsgroups: comp.sys.mac Subject: Re: Desktop icon mask Message-ID: <10330032@eecs.nwu.edu> Date: 12 Sep 88 12:58:37 GMT References: <698@tasis.utas.oz> Organization: Northwestern U, Evanston IL, USA Lines: 15