Windows / Win32 / MIDL2400

MIDL2400

The documentation lists this name without a value.

Documented in Win32

Compiler Errors

for ole automation, optional parameters should be VARIANT or VARIANT * OLE Automation requires that all [optional] parameters be of type VARIANT or VARIANT* . In OLE automation, using non-VARIANT parameters may cause the call to fail at run time or to pass undefined data for the [ optional ] parameters.