Working with QDBus and custom types

[JuBe]

Hi all,

I'm trying to get a small Qt apps working with DBus but there are some details I cannot find anywhere (perhaps I'm not looking after the right key words...)

1st.
In my app.h, I declare a structure:

typedef struct s_MyStruct{
QString s;
int i;
} MyStruct;

typedef struct s_MyStruct{
QString s;
int i;
} MyStruct;

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and I use it in a slot:

public Q_SLOTS:
QString sayHelloWorld(MyStruct arg);

public Q_SLOTS:
QString sayHelloWorld(MyStruct arg);

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But when I use qdbuscpp2xml to generate the xml dbus interface of this application/service, this method using a structure does not appear whereas DBus has a structure type.

I found that I can add this by hand like this:

<method name="sayHelloWorld">
      <arg type="s" direction="out"/>
      <annotation name="com.trolltech.QtDBus.QtTypeName.In0" value="MyStruct"/>
      <arg name="c" type="(si)" direction="in"/>

<method name="sayHelloWorld">
      <arg type="s" direction="out"/>
      <annotation name="com.trolltech.QtDBus.QtTypeName.In0" value="MyStruct"/>
      <arg name="c" type="(si)" direction="in"/>

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I did not find any doc on Trolltech website for this so, where all of this is documented ?


2nd.
My second problem is when I'm trying to compile my application.
- I defined my structure to Qt MetaType with the macro:

Q_DECLARE_METATYPE(MyStruct)

Q_DECLARE_METATYPE(MyStruct)

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- I defined the

QDBusArgument &operator<<(QDBusArgument &argument, const MyStruct &arg);

QDBusArgument &operator<<(QDBusArgument &argument, const MyStruct &arg);

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and

const QDBusArgument &operator>>(const QDBusArgument &argument, MyStruct &arg);

const QDBusArgument &operator>>(const QDBusArgument &argument, MyStruct &arg);

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operators
- BUT when I want to register my structure on dbus with

qDBusRegisterMetaType<MyStruct>

qDBusRegisterMetaType<MyStruct>

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, I'm getting an error:

qmetatype.h:189: error: 'qt_metatype_id' is not a member of 'QMetaTypeId<s_MyStruct>'

qmetatype.h:189: error: 'qt_metatype_id' is not a member of 'QMetaTypeId<s_MyStruct>'

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What's wrong ?

Please, help me! Where is all of this well documented ?

Thanks for all

[shensel]

your 2nd problem:

qDBusRegisterMetaType<mynamespace::MyStruct>

this was working 4me

[JuBe]

I tried your tips but this does not work anymore...

I'm working with Qt 4.5.0. Everything seem to be fine in my code according to several tutos or whatever but I'm still blocked by this error