QT遍历窗体的控件

if(!q.at(i)->children().empty())

{

traversalControl(q.at(i)->children());

}

else

{

QObject*o=q.at(i);

if(o->inherits("QPushButton")){

QPushButton*b=qobject_cast<QPushButton*>(o);

b->setText("<>");

}//endif

}//endfor

}//endfunction

递归的调用方法

traversalControl(ui->centralWidget->children());

voidtraversalControl(constQObjectList&q)

{

for(inti=0;i<q.length();i++)

{

if(!q.at(i)->children().empty())

{

	traversalControl(q.at(i)->children());

	}

else

{

QObject*o=q.at(i);

if(o!=NULL){

deleteo;

}

}

}

}