DevEnum atttribute enum labels

# 7 years ago
kmadisa47	Hi, I am trying to get the device attribute's enum labels list. At the moment I am using the DeviceProxy object to query the device for the attribute configuration, however I wanted to know if there is a way to get them through the device object. So far I have tried using: `self.get_device_attr()` and `self.get_attribute_config()` however none of the returned objects have the property enum_labels. Kind regards, Katleho Edited 7 years ago

# 7 years ago

Hi,

I am trying to get the device attribute's enum labels list. At the moment I am using the DeviceProxy object to query the device for the attribute configuration, however I wanted to know if there is a way to get them through the device object.

So far I have tried using:

self.get_device_attr()

and

self.get_attribute_config()

however none of the returned objects have the property enum_labels.

Kind regards,
Katleho

Edited 7 years ago

# 7 years ago
Reynald	Hi Katleho, Sorry for answering in C++, but since PyTango is based on the Tango C++ library, this might still help you. In C++, in a device server, you can get the enum labels from a MultiAttrProp object, using Attribute::get_properties(MultiAttrProp<T>&) method. Here is a sample code: `Tango::MultiAttrProp<Tango::DevEnum> multi_attr_prop; get_device_attr()->get_attr_by_name("Color").get_properties(multi_attr_prop); cout << "Labels for Color DevEnum attribute:" << endl; for(string l:multi_attr_prop.enum_labels) { cout << "- " << l << endl; }` Maybe the pyTango experts could guide you better after this hint Hoping this helps, Reynald PS: Special thanks to Emmanuel Taurel for his help on this topic. Rosenberg's Law: Software is easy to make, except when you want it to do something new. Corollary: The only software that's worth making is software that does something new.

# 7 years ago

Reynald

Hi Katleho,

Sorry for answering in C++, but since PyTango is based on the Tango C++ library, this might still help you.
In C++, in a device server, you can get the enum labels from a MultiAttrProp object, using Attribute::get_properties(MultiAttrProp<T>&) method.

Here is a sample code:

Tango::MultiAttrProp<Tango::DevEnum> multi_attr_prop;
get_device_attr()->get_attr_by_name("Color").get_properties(multi_attr_prop);
cout << "Labels for Color DevEnum attribute:" << endl;
for(string l:multi_attr_prop.enum_labels)
{
    cout << "- " << l << endl;
}

Maybe the pyTango experts could guide you better after this hint smile

Hoping this helps,
Reynald

PS: Special thanks to Emmanuel Taurel for his help on this topic.

Rosenberg's Law: Software is easy to make, except when you want it to do something new.
Corollary: The only software that's worth making is software that does something new.