where is this defined?

Question

Attempting to disable BSTR caching:

SetOaNoCache();

VC++ compiler build output:

• 'SetOaNoCache': identifier not found

Don't want to use:

• OANOCACHE=1

Question:

• Where is SetOaNoCache defined - header file?

Answer 1

It's not. From the Win32 API library shipped with C++ Builder:

Requirements

Windows XP: Requires Windows XP Service Pack 2 or later.

Windows 95/98: Not supported.

Header: Not supplied. Declare prototype as shown.

Library: Use oleaut32.lib.

The prototype as shown:

inline void TurnOffCache ()
{
// Function prototype.
extern "C" SetOaNoCache(); 
// Turn off BSTR caching.
SetOaNoCache();
}