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RegisterTypeLib Function

Adds information about a type library to the system registry.

HRESULT RegisterTypeLib(
  ITypeLib FAR  *ptlib,
  OLECHAR FAR  *szFullPath,
  OLECHAR FAR  *szHelpDir
);

ptlib

Pointer to the type library being registered.

szFullPath

Fully qualified path specification for the type library being registered.

szHelpDir

Directory in which the Help file for the library being registered can be found. Can be Null.

The return value obtained from the returned HRESULT is one of the following:

Return value

Meaning

S_OK

Success.

E_OUTOFMEMORY

Out of memory.

E_INVALIDARG

One or more of the arguments is invalid.

TYPE_E_IOERROR

The function could not write to the file.

TYPE_E_REGISTRYACCESS

The system registration database could not be opened.

TYPE_E_INVALIDSTATE

The type library could not be opened.

The function RegisterTypeLib can be used during application initialization to register the application's type library correctly. When RegisterTypeLib is called to register a type library, both the minor and major version numbers are registered in hexadecimal.

In addition to filling in a complete registry entry under the type library key, RegisterTypeLib adds entries for each of the dispinterfaces and Automation-compatible interfaces, including dual interfaces. This information is required to create instances of these interfaces. Coclasses are not registered (that is, RegisterTypeLib does not write any values to the CLSID key of the coclass).

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