[Qt-qml] Call C++ Slot from Workerscript.sendmessage

[bea.lam at nokia.com]

Hi Mike,

On 01/11/2010, at 9:37 PM, ext Schmidt wrote:

> 
>> Hi All,
>> 
>>  
>> 
>> how do i call a slot of my c++-Programm from
>> 
>> the WorkerScript .js file ?
>> 
>>  
>> 
>> class MyClass {
>> 
>> Q_OBJECT
>> 
>> public slots:
>> 
>> void work() { /* do something*/ }
>> 
>> }
>> 
>>  
>> 
>> MyClass is given to qml via setContextProperty("myclass", MyClass);
>> 

Since the WorkerScript code is executed in a different thread, it is evaluated in a different context. So unlike an ordinary script file, it won't see any of the context properties of the QML object. I've created http://bugreports.qt.nokia.com/browse/QTBUG-14919 to make sure this gets documented.

I'd suggest you implement the threading with QThread in C++ instead. It is not possible in this case to pass the myclass object to the onMessage() handler to the invoke the function, since it's a QObject* and that cannot be passed to the WorkerScript.


regards,

Bea