ITypeLib::GetTypeInfo
A version of this page is also available for
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 ITypeInfo interface to be returned.
- ppTInfo
[out] If successful, returns a pointer to the pointer to the ITypeInfo interface.
Return Value
The following table shows the return values for this function.
| Value | Description |
|---|---|
S_OK |
Success. |
TYPE_E_ELEMENTNOTFOUND |
The index parameter 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::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);
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
Reference
ITypeLib
ITypeInfo::GetRefTypeInfo
ITypeInfo::GetRefTypeOfImplType
ITypeLib::GetTypeInfoCount