下面是一段代码,可以将其转储。孩子的IPropertyStore没有返回这些,我不知道为什么,所以我们必须使用
古老的
IShellFolder2::GetDetailsEx method
具有特殊列id(与PROPERTYKEY相同)。
CComPtr<IShellItem> cpl;
CComPtr<IShellFolder2> folder;
CComPtr<IEnumShellItems> enumerator;
PROPERTYKEY pkLocation;
SHCreateItemFromParsingName(L"::{26EE0668-A00A-44D7-9371-BEB064C98683}\\8\\::{7B81BE6A-CE2B-4676-A29E-EB907A5126C5}", nullptr, IID_PPV_ARGS(&cpl));
// bind to IShellFolder
cpl->BindToHandler(NULL, BHID_SFObject, IID_PPV_ARGS(&folder));
// bind to IEnumShellItems
cpl->BindToHandler(NULL, BHID_EnumItems, IID_PPV_ARGS(&enumerator));
// get this property key's value
PSGetPropertyKeyFromName(L"System.Software.InstallLocation", &pkLocation);
for (CComPtr<IShellItem> child; enumerator->Next(1, &child, nullptr) == S_OK; child.Release())
{
// get child's display name
CComHeapPtr<wchar_t> name;
child->GetDisplayName(SIGDN_NORMALDISPLAY, &name);
wprintf(L"%s\n", name);
// get child's PIDL
CComHeapPtr<ITEMIDLIST> pidl;
SHGetIDListFromObject(child, &pidl);
// the PIDL is absolute, we need the relative one (the last itemId in the list)
// get it's install location
CComVariant v;
if (SUCCEEDED(folder->GetDetailsEx(ILFindLastID(pidl), &pkLocation, &v)))
{
// it's a VT_BSTR
wprintf(L" %s\n", v.bstrVal);
}
}
注意,它使用的是未记录的
System.Software.InstallLocation
PROPERTYKEY。为了找到它,我只需为每个子级转储所有列,代码如下:
int iCol = 0;
do
{
SHCOLUMNID colId;
if (FAILED(folder->MapColumnToSCID(iCol, &colId)))
break; // last column
CComHeapPtr<wchar_t> name;
PSGetNameFromPropertyKey(colId, &name);
CComVariant v;
if (SUCCEEDED(folder->GetDetailsEx(ILFindLastID(pidl), &colId, &v)))
{
if (v.vt == VT_BSTR)
{
wprintf(L" %s: %s\n", name, v.bstrVal);
}
else
{
wprintf(L" %s vt: %i\n", name, v.vt);
}
}
iCol++;
} while (true);
}
PS:我没有添加太多的错误检查,但你应该。