This method retrieves the specified type description in the library.
At a Glance
| Header file: | Oaidl.h |
| Windows CE versions: | 2.0 and later |
Syntax
HRESULT GetTypeInfo( unsigned int index, ITypeInfo FAR* FAR* ppTInfo );
Parameters
index
Index of the ITypeInfo interface to be returned.
ppTInfo
If successful, returns a pointer to the pointer to the ITypeInfo interface.
Return Values
One of the values described in the following table is returned.
| Value | Description |
| S_OK | Success. |
| TYPE_E_ELEMENTNOTFOUND | The index parameter is outside the range of 0 to 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::GetTypeInfo returns only the TKIND_DISPATCH type information. To get the TKIND_INTERFACE type information, ITypeInfo::GetRefTypeOfImplType can be called on the TKIND_DISPATCH type information, passing an index of –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.
ptlib->GetTypeInfo((unsigned int) dwIndex, &ptypeinfoDisp);
ptypeinfoDisp->GetRefTypeOfImplType(-1, &phreftype);
ptypeinfoDisp->GetRefTypeInfo(phreftype, &ptypeinfoInt);