I'm developing an application on c++ language on linux. I want to send a signal as this:

```
<signal name="EmitSignal">
    <arg type="(u(i)uussssu)" name="t_struct_of_signal" direction="out" />
</signal>

```

The second parameter in `type="(u(i)uussssu)"` is an enum type. 

I'm trying to register a struct 

```
#define STRUCT_OF_SIGNAL (dbus_g_type_get_struct ("GValueArray", \
                         G_TYPE_UINT, \
                         G_TYPE_POINTER, \ 
                         G_TYPE_UINT, \
                         G_TYPE_UINT, \
                         G_TYPE_STRING, \
                         G_TYPE_STRING, \
                         G_TYPE_STRING, \
                         G_TYPE_STRING, \
                         G_TYPE_UINT, \
                         G_TYPE_INVALID))

```

but I've some errors :

```
** (process:21792): WARNING **: No marshaller registered for type "gpointer"
** (process:21792): WARNING **: failed to marshal parameter 1 for signal EmitSignal

```

Can someone help me?

Thanks so much