September 93 - MACINTOSH Q & A
MACINTOSH Q & A
MACINTOSH DEVELOPER TECHNICAL SUPPORT
Q Will QuickDraw and QuickDraw GX coexist, or will QuickDraw GX replace QuickDraw?
A QuickDraw isn't leaving with the introduction of QuickDraw GX. It's here to stay. Among other reasons, QuickDraw functions are used extensively by the Macintosh
Toolbox and applications. For more information, see the article "Getting Started With
QuickDraw GX" in this issue of develop .
Q Will display cards that offer QuickDraw acceleration be affected by QuickDraw GX? A Current QuickDraw acceleration cards aren't affected by QuickDraw GX. QuickDraw GX doesn't use any of the current QuickDraw calls and its presence won't affect
applications that use only QuickDraw. QuickDraw acceleration cards also won't
accelerate QuickDraw GX.
Q The LaserWriter driver before the QuickDraw GX version has an option to print in Color/Grayscale or Black & White. Why isn't this option in the QuickDraw GX
LaserWriter driver?
A The Color/Grayscale option was added to the LaserWriter driver only for compatibility reasons. At the time, some applications couldn't deal with the color
option (specifically with cGrafPorts), so a Black & White mode was also provided. The
Black & White mode exhibited the same functionality as the earlier LaserWriter
driver 5.2.
Because most applications are color compatible now, the option was removed from the
QuickDraw GX printer drivers. Some people reported that the option let them print
faster when they chose Black & White. This was true because of quirks in the earlier
LaserWriter driver version. Under QuickDraw GX, this shouldn't be a problem. If it
turns out to be a problem for your driver, you could incorporate black-and-white