[Qt-interest] native painting in a QWidget on Windows

[Thiago Macieira]

On Thursday, 30 de December de 2010 08:36:00 John Weeks wrote:
> Out of curiosity- why is the Windows implementation done this way? Are other
> platforms implemented this way as well?

Mac and Linux (X11) do have a "native" graphics system, but Symbian and QWS 
don't. The reason why Windows didn't have one is because what passes for 
native there (GDI) is too weak to support Qt's operations. So anything non-
trivial will require falling back to the raster engine anyway to perform the 
operation.

Mac CoreGraphics and X11's XRender are considerably more powerful.

Yet, it should be noted, we're moving away from the native engines and we'll 
switch the default on those platforms to the raster engine too. The native 
engines will be kept as legacy and, when that happens, no new features or 
performance improvements will be made on them.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
      PGP/GPG: 0x6EF45358; fingerprint:
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