SetOaNoCache在哪里定义？

Question

试图禁用 BSTR缓存:

SetOaNoCache();

VC++编译器构建输出:

• 'SetOaNoCache': identifier not found

不要想用:

• OANOCACHE = 1

题:

• SetOaNoCache 在哪里定义 - 头文件？

Answer 1

它没有在头文件中定义,它在OLEAUT32.dll中.你可以这样称呼它:

typedef int (*SETOANOCACHE)(void);


void DisableBSTRCache()
{
    HINSTANCE hLib = LoadLibrary("OLEAUT32.DLL");
    if (hLib != NULL)
    {
        SETOANOCACHE SetOaNoCache = (SETOANOCACHE)GetProcAddress(hLib, "SetOaNoCache");
        if (SetOaNoCache != NULL)
            SetOaNoCache();
        FreeLibrary(hLib);
    }
}