The file zohio.ocx has to be registered and placed in the directory as zhllap32.dll, which works in out-of-process mode, allowing any z/Scope version to be controlled by OHIO by a separate process. The entry points are taken from this file.

The class ohiomanager is accessed through zohio.ohiomanager. For example:

Visual Basic:

CreateObject("zOHIO.OHIOManager")

Javascript:

var OHIOManager = new

ActiveXObject("zOHIO.OHIOManager");

For a complete reference of the OHIO API, refer to the following sections: