windows-nt/Source/XPSP1/NT/shell/lib/ieutil.cpp
2020-09-26 16:20:57 +08:00

90 lines
2.3 KiB
C++

#include "stock.h"
#pragma hdrstop
#include <varutil.h>
#include <shdocvw.h>
// Use this file to house browser-related utility functions
// -------------------------------------------------------------------
// ANSI/UNICODE-neutral functions
// these only need to be compiled once, so just do it UNICODE
#ifdef UNICODE
LPITEMIDLIST _ILCreateFromPathW(LPCWSTR pwszPath)
{
// use this shdocvw export, this deals with down level shells and funky url parsing
LPITEMIDLIST pidl;
return SUCCEEDED(IEParseDisplayNameWithBCW(CP_ACP, pwszPath, NULL, &pidl)) ? pidl : NULL;
}
STDAPI_(LPITEMIDLIST) VariantToIDList(const VARIANT *pv)
{
LPITEMIDLIST pidl = NULL;
if (pv)
{
if (pv->vt == (VT_BYREF | VT_VARIANT) && pv->pvarVal)
pv = pv->pvarVal;
switch (pv->vt)
{
case VT_I2:
pidl = SHCloneSpecialIDList(NULL, pv->iVal, TRUE);
break;
case VT_I4:
case VT_UI4:
if (pv->lVal < 0xFFFF)
{
pidl = SHCloneSpecialIDList(NULL, pv->lVal, TRUE);
}
#ifndef _WIN64
//We make sure we use it as a pointer only in Win32
else
{
pidl = ILClone((LPCITEMIDLIST)pv->byref); // HACK in process case, avoid the use of this if possible
}
#endif // _WIN64
break;
//In Win64, the pidl variant could be 8 bytes long!
case VT_I8:
case VT_UI8:
if(pv->ullVal < 0xFFFF)
{
pidl = SHCloneSpecialIDList(NULL, (int)pv->ullVal, TRUE);
}
#ifdef _WIN64
//We make sure we use it as a pointer only in Win64
else
{
pidl = ILClone((LPCITEMIDLIST)pv->ullVal); // HACK in process case, avoid the use of this if possible
}
#endif //_WIN64
break;
case VT_BSTR:
pidl = _ILCreateFromPathW(pv->bstrVal);
break;
case VT_ARRAY | VT_UI1:
pidl = ILClone((LPCITEMIDLIST)pv->parray->pvData);
break;
case VT_DISPATCH | VT_BYREF:
if (pv->ppdispVal)
SHGetIDListFromUnk(*pv->ppdispVal, &pidl);
break;
case VT_DISPATCH:
SHGetIDListFromUnk(pv->pdispVal, &pidl);
break;
}
}
return pidl;
}
#endif // UNICODE