我有一個類,我想在Qvariant中使用它,因此我需要聲明和註冊Meta類型。這是我做了什麼:在Qt中註冊一個元類型
class blabla: public QThread
{
Q_OBJECT
.
.
.
};
Q_DECLARE_METATYPE(blabla)
但這段代碼是給我的錯誤:
In copy constructor ‘QThread::QThread(const QThread&)’:
instantiated from ‘void* qMetaTypeConstructHelper(const T*) [with T = blabla]’
instantiated from ‘int qRegisterMetaType(const char*, T*) [with T = blabla]’
instantiated from here
‘QObject::QObject(const QObject&)’ is private
within this context
In file included from UnitTest.cpp:16:0:
blabla.h: In copy constructor ‘blabla::blabla(const blabla&)’:
note: synthesized method ‘QThread::QThread(const QThread&)’ first required here
In file included from /usr/include/QtCore/qvariant.h:48:0,
from /usr/include/QtCore/qabstractitemmodel.h:45,
from /usr/include/QtCore/QtCore:7,
from /usr/include/QtTest/QtTest:3,
from UnitTest.h:16,
from UnitTest.cpp:14:
In function ‘void* qMetaTypeConstructHelper(const T*) [with T = blabla]’:
note: synthesized method ‘blabla::blabla(const blabla&)’ first required here
make[1]: *** [build/obj/UnitTest.o] Error 1
我想我需要註冊我遇到了型,但我不知道哪裏有qRegisterMetaType<MyClass>("MyClass");
。我嘗試過在元類型聲明宏之後使用它,但導致錯誤。通過任何評論或暗示指引我走向正確的道路。
我相信我在C++源文件中註冊了我正在註冊的類的元類型。和cmannett85一樣,我使用指向類而不是對象的指針。 – drescherjm