Re: calling a Qt dbus method from a HILDON desktop widget
Hi!
Is your service really running on system bus?
You don't need Qt client for testing as dbus-send exists.
Thanks, Daniil.
On Tue, Feb 9, 2010 at 2:53 PM, ibrahim wrote:
> greetings;
>
> I was creating an application with Qt that exposes a dbus service. the
> service returns its output as a QStringList. I tested this dbus service
> with a client written in Qt and it worked perfectly.
>
> I wanted to create a Desktop widget that can consume this dbus service. I
> created a normal C file that calls the dbus service - just as POC to see if
> it works by modifying some code i found (a C file that gets the imei ,
> written by mr.faheem
> http://talk.maemo.org/showpost.php?p=371496&postcount=45)
> my code is :
>
> #include
> #include
> #include
> #include
> #include
> #include
> static GList* ptimes_list = NULL;
> int fn() {
> DBusGConnection *conn;
> GError *error = NULL;
>
> conn = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
> if (!conn) {
> g_printerr ("Error: %s\n", error->message);
> g_error_free (error);
> return 0;
> }
> DBusGProxy *proxy = NULL;
> /* replaced the cinstants with values from my dbus interface */
> proxy = dbus_g_proxy_new_for_name(conn, SERVICE_NAME,PATH ,INTERFACE);
> if (!proxy) {
> printf("No proxy, dbus_g_proxy_new_for_name() failed \n");
> return 0;
> }
> if (!dbus_g_proxy_call(proxy,"mthod_name", &error,my_list) )
> {
> /* dbus_g_proxy_call failed */
> printf("dbus_g_proxy_call(proxy,method, &error,myList) returned
> FALSE \n");
> return 0;
> }
> if (!my_list) {
> /* output list is empty */
> printf("my_list) glist is still NULL \n");
> return 0;
> }
> g_object_unref(proxy);
> char[10] element = (char*) g_list_nth_data(my_list),0); printf("the
> value of the fajr first is %s \n",element);
> return 1;
> }
> the program fails at this point: proxy = dbus_g_proxy_new_for_name(conn,
> SERVICE_NAME,PATH ,INTERFACE);
> and my application stops.
>
> I wonder what is wrong with the way I called my DBus service . Any help is
> appreciated!
> ___
> maemo-developers mailing list
> maemo-developers@maemo.org
> https://lists.maemo.org/mailman/listinfo/maemo-developers
>
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Re: calling a Qt dbus method from a HILDON desktop widget
On Tue, Feb 9, 2010 at 2:53 PM, ibrahim wrote: > conn = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error); Home widgets should get the connection with hd_home_plugin_item_get_dbus_connection() I was able to use dbus just fine with that, and the raw libdbus apiv -- Ville M. Vainio http://tinyurl.com/vainio ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
calling a Qt dbus method from a HILDON desktop widget
greetings;
I was creating an application with Qt that exposes a dbus service. the
service returns its output as a QStringList. I tested this dbus service
with a client written in Qt and it worked perfectly.
I wanted to create a Desktop widget that can consume this dbus service.
I created a normal C file that calls the dbus service - just as POC to
see if it works by modifying some code i found (a C file that gets the
imei , written by mr.faheem
http://talk.maemo.org/showpost.php?p=371496&postcount=45)
my code is :
#include
#include
#include
#include
#include
#include
static GList* ptimes_list = NULL;
int fn() {
DBusGConnection *conn;
GError *error = NULL;
conn = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
if (!conn) {
g_printerr ("Error: %s\n", error->message);
g_error_free (error);
return 0;
}
DBusGProxy *proxy = NULL;
/* replaced the cinstants with values from my dbus interface */
proxy = dbus_g_proxy_new_for_name(conn, SERVICE_NAME,PATH ,INTERFACE);
if (!proxy) {
printf("No proxy, dbus_g_proxy_new_for_name() failed \n");
return 0;
}
if (!dbus_g_proxy_call(proxy,"mthod_name", &error,my_list) )
{
/* dbus_g_proxy_call failed */
printf("dbus_g_proxy_call(proxy,method, &error,myList)
returned FALSE \n");
return 0;
}
if (!my_list) {
/* output list is empty */
printf("my_list) glist is still NULL \n");
return 0;
}
g_object_unref(proxy);
char[10] element = (char*) g_list_nth_data(my_list),0);
printf("the value of the fajr first is %s \n",element);
return 1;
}
the program fails at this point: proxy = dbus_g_proxy_new_for_name(conn,
SERVICE_NAME,PATH ,INTERFACE);
and my application stops.
I wonder what is wrong with the way I called my DBus service . Any help
is appreciated!
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