QPlace
12th November 2009, 18:47
The problem was that Q_DECLARE_INTERFACE should be used in the same header where interface is declared.
I have a plugin that I can successfully load, i.e. instance() returned by pluginloader is not null and I can see that the plugin class instantiates successfully under debugger. However, I can't compile the casting of returned QObject* to my interface.
For this line:
tit::testdata::ITestData* fd = qobject_cast< tit::testdata::ITestData*> (loader.instance());
compiler returns the error:
error C2039: 'staticMetaObject' : is not a member of 'tit::testdata::ITestData'
According to the doc example interface classes do not have any reference to Qt. (like FilterInterface in <QT>/doc/html/plugins-howto.html#the-lower-level-api-extending-qt-applications ).
my interface declarations are:
header:
using namespace tit::testdata;
Q_DECLARE_INTERFACE(ITestData, "tit.testdata/1.0")
source:
Q_EXPORT_PLUGIN2("myplugin", CTestData)
CTestData implements ITestData
What am I doing wrong?
I have a plugin that I can successfully load, i.e. instance() returned by pluginloader is not null and I can see that the plugin class instantiates successfully under debugger. However, I can't compile the casting of returned QObject* to my interface.
For this line:
tit::testdata::ITestData* fd = qobject_cast< tit::testdata::ITestData*> (loader.instance());
compiler returns the error:
error C2039: 'staticMetaObject' : is not a member of 'tit::testdata::ITestData'
According to the doc example interface classes do not have any reference to Qt. (like FilterInterface in <QT>/doc/html/plugins-howto.html#the-lower-level-api-extending-qt-applications ).
my interface declarations are:
header:
using namespace tit::testdata;
Q_DECLARE_INTERFACE(ITestData, "tit.testdata/1.0")
source:
Q_EXPORT_PLUGIN2("myplugin", CTestData)
CTestData implements ITestData
What am I doing wrong?