[Qt-interest] Qt loads its run-time library question?

[Thiago Macieira]

Em Terça-feira 12. Janeiro 2010, às 08.45.11, Wei Song escreveu:
> Hi,
> 
> I want to know that whether a simple widget Qt program start to run, it
> would load all its run-time library in different platform or load just what
> it need?
> Like QtCore, QtGui, QtWebkit...?
> 
> For example, a console Qt program would load QtGui run-time library?

When a program is loaded, before it starts executing, all the dependent 
libraries are loaded.

The libraries loaded are those you linked to. So you should not link to 
libraries you don't need to.

> And the ways Qt load its run-time library in different platform are same?

Yes and no. Qt doesn't load its libraries. The system loads the Qt libraries. 
And since each system is different, the way they load is different too.

But in essence, the principle is the same: you link to it, it gets loaded at 
runtime.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
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