bluz glib编程 --- 代码片段参考

获取远端蓝牙的所有属性

    result = g_dbus_connection_call_sync(
        conn,
        "org.bluez",
        /org/bluez/hci0/dev_A4_C1_38_10_09_2C,
        "org.freedesktop.DBus.Properties",
        "GetAll",
        g_variant_new("(s)", "org.bluez.Device1"),
        G_VARIANT_TYPE("(a{sv})"),
        G_DBUS_CALL_FLAGS_NONE,
        -1,
        NULL,
        &error
    );

    if(error != NULL) {
        printf("error get property: %s\n", error->message);
        g_error_free(error);
        return 1;
    }

    GVariantIter *prop_iter;
    gchar *prop_name;
    GVariant *prop_value;
    
    // 遍历所有属性
    g_variant_get(result, "(a{sv})", &prop_iter);
    while (g_variant_iter_next(prop_iter, "{sv}", &prop_name, &prop_value)) {
        gchar *value_str = g_variant_print(prop_value, TRUE);
        g_print("    %s: %s\n", prop_name, value_str);
        g_free(value_str);
        g_variant_unref(prop_value);
        g_free(prop_name);
    }
    g_variant_iter_free(prop_iter);
    g_variant_unref(result);