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4/8/2010

This method retrieves the specified type description in the library.

Syntax 

HRESULT GetTypeInfo( 
  unsigned int 
index, 
  ITypeInfo FAR* FAR* 
ppTInfo 
);

Parameters

index

[in] Index of the ITypeInfointerface to be returned.

ppTInfo

[out] If successful, returns a pointer to the pointer to the ITypeInfointerface.

Return Value

The following table shows the return values for this function.

Value Description

S_OK

Success.

TYPE_E_ELEMENTNOTFOUND

The indexparameter is outside the range of 0 to ITypeLib::GetTypeInfoCount–1.

E_OUTOFMEMORY

Out of memory.

E_INVALIDARG

One or more of the parameters is invalid.

TYPE_E_IOERROR

The function could not read from the file.

TYPE_E_INVDATAREAD

Invalid data.

TYPE_E_UNSUPFORMAT

The type library has an older format.

TYPE_E_REGISTRYACCESS

There was an error accessing the system registration database.

TYPE_E_INVALIDSTATE

The type library could not be opened.

Remarks

For dual interfaces, ITypeLib::GetTypeInforeturns only the TKIND_DISPATCH type information.

To get the TKIND_INTERFACE type information, ITypeInfo::GetRefTypeOfImplTypecan be called on the TKIND_DISPATCH type information, passing an indexof –1. Then, the returned type information handle can be passed to ITypeInfo::GetRefTypeInfo.

Example

The following code example gets the TKIND_INTERFACE type information for a dual interface.
Copy Code 
ptlib->GetTypeInfo((unsigned int) dwIndex, &ptypeinfoDisp);
ptypeinfoDisp->GetRefTypeOfImplType(-1, &phreftype);
ptypeinfoDisp->GetRefTypeInfo(phreftype, &ptypeinfoInt);

Requirements

Header oaidl.h, oaidl.idl
Library oleaut32.lib, uuid.lib
Windows Embedded CE Windows CE 2.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also