Use QT in a symbian UI applicaton

[microsoft2]

Hello,
I have a Symbian GUI application and a symbian server. I would like to include a view that shows a map.
For that purpose I will use QT.
My question is -
1. Do I have to rewrite the whole UI in QT or I can somehow create only the new view in QT and leave the old UI untouched?
2. If I have to rewrite the UI I will also need to use the symbian server in the QT application, which qt class can replace RSessionBase::SendReceive ?

[symbianyucca]

You could try making the Qt application hidden, and then run it embedded in your Symbian application. In theory should work just fine, though I have never tried it.

[microsoft2]

Excellent idea, but I need some more help!

From the symbian UI I tried to the start QT UI using the following code:

CApaDocument* CAppUi::StartEmbeddedL( TUid aAppUid )
{
	LOG_FUNCTION_F(_L("0x%08x"), aAppUid.iUid);
	CApaDocument* newDoc = CEikonEnv::Static()->Process()->AddNewDocumentL(TApaApplicationFactory(aAppUid)); 
	newDoc->EditL( this );
	return newDoc;
}

In the QT UI .pro file I added only

RSS_RULES ="embeddability=KAppEmbeddable;"

This solution does not work - the QT ui is not started

I took a look at one SDK example and it seems that I need to create a dll that exports

// Map the interface UIDs
static const TImplementationProxy ImplementationTable[]=
	{
	IMPLEMENTATION_PROXY_ENTRY(0xE800008F, NewApplication)
	};

// Exported proxy for instantiation method resolution
EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
	{
	LOG_FUNCTION;
	aTableCount=sizeof(ImplementationTable)/sizeof(ImplementationTable[0]);
	return ImplementationTable;
	}

Is this the way that I should create a embeddable application? How can I achieve this using QT?

[symbianyucca]

its been awhile since I made embeddable apps, anyway, I did not notice any requirements on building additional dlls for the embeddable apps, so have you tried what happens when you try embedding your Qt app with Symbian App ?

[microsoft2]

Yes I did - the QT application is not started, actually nothing happens.
I have never created/used any embeddable applications - here is what I found from the SDK

Porting from 2nd edition to 3rd edition:
http://library.developer.nokia.com/i...ppsToExes.html

Embeddable applications are implemented as ECom plug-ins. The CApaApplication class defines the interface, and the majority of an application's code will be in the ECom plug-in. To allow an embeddable application to run as a standalone application a small EXE also needs to be created which calls the EikStart::RunApplication() function, but this time specifying the UID of the ECom plug-in rather than a pointer to the factory function.

This section describes the steps for converting an existing embeddable application to an ECom plug-in and executable.

Here is the 'embeddable' example that I am looking at - using the Ecom plugin - using this example the embedded application is shown correctly
http://library.developer.nokia.com/i...verviewex.html