DOCUMENTATION

Direct Office is COM wrapper for .NET Open XML objects.

To create COM wrapper object only (i.e. without corresponding .NET object), call CoClass Create method:

TextWrapper := CoWordprocessing_Text.Create;

To create .NET object call .NET constructor (constructors are mapped to New methods) on wrapper:

TextWrapper.New_7('Hello, world!');

Wrapper object and .NET object creation can be combined:

TextWrapper := CoWordprocessing_Text.Create.New_7('Hello, world!');

Overloading is not supported in COM. Overloaded methods use numbered suffix: New_7
Enumeration values are mapped to constants, prefixed with class name: FileFormatVersions_Office2013
Constructors are mapped to New methods.
Generic types are mapped to OleVariant or IEnumerable types.
Static methods are mapped to regular methods callable on wrapper.
Property Implementation_ retrieves wrapped .NET object.
Wrapper New method with Implementation_ parameter provides possibility to set retrieved .NET object to the wrapper.

http://www.microsoft.com/en-us/download/details.aspx?id=30425

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