[Qt-interest] Qt and XCB

[Thiago Macieira]

On Wednesday 30 June 2010 13:47:45 JJDaNiMoTh wrote:
> The first question is: Could I create a WM without using "under-layer" API
> (Xlib, Cocoa, Win..) but using only Qt?
> If yes, it could me save time to write a layer for the three platforms.
> 

I seriously doubt that you can write the app using Qt code alone. You will 
probably need to write platform-specific code to become the WM, to handle the 
windows coming from other processes, etc.

> If not (which I think), I have thought about using XCB instead of Xlib, for
> the X11 layer, because (from what I read on freedesktop.org) is more
> powerful, light and fast than Xlib. But, if I use XCB for some little
> parts (just take ownership of all desktop) Qt will use Xlib, so I wouldn't
> see any benefits.

Well, your code would benefit. That might be the benefit you're seeking.

> So, the second question is: Qt supports XCB? There is a Qt port to XCB
> somewhere?

Qt doesn't support XCB directly and there's no port to it. XCB is supported 
indirectly, by the fact that libX11 is implemented on top of XCB.

-- 
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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