Constants
Data type Description Application
EplObjType Constants of the object types The type of a handle can be determined via eplGetType. These constants have the prefix "EPL_OBJECTTYPE_". In addition to the objects of the EPLAN 21 data model (projects, pages, instances), there are also objects of the API such as iterators, commands, and notifications.
EplTypeId Iterator type Using these constants, the different iterators are identified. They have the prefix "EPL_ITERTYPE_".
EplProperty IDs of properties and parameters Is mainly used as parameter of the API functions for querying and setting properties as well as command parameters in order to determine the desired property/parameter. Properties have the prefix "EPL_PROPERTY_" and parameters have the prefix "EPL_PARAM_".
EplHandle Error Constants Error constants are used as return values of the API functions and in the error logs and have the prefix "EPL_ERR_".