Function NT_SetTopicProperties 

pub unsafe extern "C" fn NT_SetTopicProperties(
    topic: NT_Topic,
    properties: *const WPI_String,
) -> NT_Bool

Updates multiple topic properties. Each key in the passed-in JSON object is the name of the property to add/update, and the corresponding value is the property value to set for that property. Null values result in deletion of the corresponding property.

Parameters

• topic: topic handle
• properties: JSON object string with keys to add/update/delete

Returns

False if properties are not a valid JSON object