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ITypeLib

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

This interface provides methods for accessing a library of type descriptions.

The data that describes a set of objects is stored in a type library. A type library can be a stand-alone binary file (.tlb), a resource in a dynamic link library or executable file (.dll or .exe), or part of a compound document file.

The system registry contains a list of all the installed type libraries.

This interface supports the following:

  • Generalized containment for type information. ITypeLib allows iteration over the type descriptions contained in the library.
  • Global functions and data. A type library can contain descriptions of a set of modules, each of which is the equivalent of a C or C++ source file that exports data and functions. The type library supports compiling references to the exported data and functions.
  • General information, including a user-readable name for the library and help for the library as a whole.

The following table shows the methods for this interface in alphabetical order. Like all COM interfaces, this interface inherits the methods for the IUnknown interface.

Method Description

ITypeLib::FindName

This method finds occurrences of a type description in a type library. This may be used to verify that a name exists in a type library.

ITypeLib::GetDocumentation

This method retrieves the library's documentation string, the complete Help file name and path, and the context identifier for the library Help topic.

ITypeLib::GetLibAttr

This method retrieves the structure that contains the library's attributes.

ITypeLib::GetTypeComp

This method retrieves a pointer to the ITypeComp for a type library. This enables a client compiler to bind to the library's types, variables, constants, and global functions.

ITypeLib::GetTypeInfo

This method retrieves the specified type description in the library.

ITypeLib::GetTypeInfoCount

This method retrieves the number of type descriptions in the library.

ITypeLib::GetTypeInfoOfGuid

This method retrieves the type description that corresponds to the specified globally unique identifier (GUID).

ITypeLib::GetTypeInfoType

This method retrieves the type of a type description.

ITypeLib::IsName

This method indicates whether a passed-in string contains the name of a type or a member described in the library.

ITypeLib::ReleaseTLibAttr

This method releases the TLIBATTR originally obtained from GetLibAttr.

Headeroaidl.h, oaidl.idl
Libraryoleaut32.lib, uuid.lib
Windows Embedded CEWindows CE 2.0 and later
Windows MobileWindows Mobile Version 5.0 and later

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