[Interest] Qt::Alignment and MetaObject System

Giuseppe D'Angelo giuseppe.dangelo at kdab.com
Thu Aug 29 19:09:52 CEST 2013

Il 29/08/2013 17:11, Martin Koller ha scritto:
> However how can I do the same with this Qt::AlignmentFlag enum which is not defined inside a QObject ?

There's a trick in place in qnamespace.h:


So: most(all?) enums under the Qt namespace gets actually extracted by 
moc, and placed in a special metaobject, accessible in any QObject 
subclass (it's protected): QObject::staticQtMetaObject.

So you can use something like

 > int index = staticQtMetaObject.indexOfEnumerator("Alignment");
 > QMetaEnum me = staticQtMetaObject.enumerator(index);
 > ...

in a QObject subclass to get the meta information about Qt::Alignment.

Hope this helps,
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