Message-Id: <m0xJ2iL-0003DoC@fwd07.btx.dtag.de>
Date: Wed, 8 Oct 97 22:28 MET DST
To: djgpp AT delorie DOT com
References: <3 DOT 0 DOT 16 DOT 19971008134548 DOT 29a7ca66 AT hem1 DOT passagen DOT se>
Subject: Re: Mouse Cursors again!
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From: Georg DOT Kolling AT t-online DOT de (Georg Kolling)
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Peter Palotas schrieb:
> I asked a question a few days ago about mousecursors. The thing is that
> they flicker in almost every DOS application there is, but not in windows,
> and I wanted to know why.
>
> Then a few of you told me it was because windows uses the hardware cursor.
> Now this made me wonder... What is a hardware mouse cursor then? Is it
> implemented by the mouse-driver? Because in that case it seems kind of
> software to me, and anyone should be able to do it. Or is it a feature of
> the graphics card, that varies for each graphics card? If that is the case,
> it must be able to do it using VESA, right!?

It is a feature of the graphics card, and it varies for each graphics card.
But it is NOT implemented in the VESA specs (...well, maybe in VESA 3.0, don't
know...). You have to do it by hand, for each graphics card differently...
that's why windows uses drivers and leaves all the hardware relevant stuff to
the hardware manufacturers (they should know their products best).