This method assigns virtual function table (VTBL) offsets for virtual functions and instance offsets for per-instance data members.
At a Glance
| Header file: | Oaidl.h |
| Windows CE versions: | 2.0 and later |
Syntax
HRESULT LayOut();
Return Values
One of the values described in the following table is returned.
| Value | Description |
| S_OK | Success. |
| STG_E_INSUFFICIENTMEMORY | Out of memory. |
| E_OUTOFMEMORY | Out of memory. |
| E_ACCESSDENIED | Cannot write to the destination. |
| TYPE_E_UNDEFINEDTYPE | Bound to unrecognized type. |
| TYPE_E_INVALIDSTATE | The state of the type library is not valid for this operation. |
| TYPE_E_WRONGTYPEKIND | Type mismatch. |
| TYPE_E_ELEMENTNOTFOUND | The element cannot be found. |
| TYPE_E_AMBIGUOUSNAME | More than one item exists with this name. |
| TYPE_E_SIZETOOBIG | The type information is too long. |
| TYPE_E_TYPEMISMATCH | Type mismatch. |
Remarks
LayOut also assigns member identifier numbers to the functions and variables, unless the TYPEKIND of the class is TKIND_DISPATCH. Call LayOut after all members of the type information are defined, and before the type library is saved.
Other members of the ICreateTypeInfo interface should not be called after calling LayOut.
Different implementations of ICreateTypeInfo or other interfaces that create type information are free to assign any member identifier numbers, provided that all members (including inherited members), have unique identifiers. For examples, see the ICreateTypeInfo2 interface later in this chapter.