Data type
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Description
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Application
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EplObjType
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Constants of the object types
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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.
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EplTypeId
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Iterator type
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Using these constants, the different iterators are identified. They have the prefix "EPL_ITERTYPE_".
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EplProperty
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IDs of properties and parameters
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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_".
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EplHandle
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Error Constants
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Error constants are used as return values of the API functions and in the error logs and have the prefix "EPL_ERR_".
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