On 28 Jul 2009, at 09:09, Kyle Sluder wrote:

On Jul 28, 2009, at 12:29 AM, Graham Cox <graham....@bigpond.com> wrote:
MDI is a solution to a problem of Windows' own making, where window == process.

Please don't spread misinformation about Windows, it makes us look bad. Windows' concept of a window is very different from our concept thereof. Nothing restricts Windows apps to one window or enforces a window = process equality.

Quite. I was going to point that out also; there certainly used to be apps on Windows used top-level windows in a Mac-like way (indeed, Visual Basic used to do this before it became part of Visual Studio, as did Delphi and its cousin C++ Builder, and arguably most web browsers---including Internet Explorer---still do).

Windows' concept of a window is certainly more fine-grained than on OS X; they're more like NSViews than NSWindows in many respects, and indeed many controls *are* windows on Windows (though some, as an "optimisation", were built to draw into their parent window in a manner somewhat analogous to the relationship between NSControl and NSCell... obviously this means that the parent window needs special support for this arrangement, which can be irritating as it's usually just a normal window or a group box or something as opposed to an NSControl analogue).

MDI is a design choice. One that conflicted with MS's goals for a more document-centric UI in Chicago/Win95 and won out.

Indeed.

Anyway, debate over MDI versus document-per-window is not really needed here and is in danger of drifting off topic. We all know the pros and cons.

The important thing to take away from this, I think, is that as a general rule your application will look and feel bad if it doesn't match the UI style that is expected on a particular platform. Windows apps that try to do a document-per-window approach will probably attract criticism from Windows users, just as Mac apps that try to do MDI will annoy many Mac users.

Kind regards,

Alastair.

--
http://alastairs-place.net



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