// @pymethod string|propsys|PSGetNameFromPropertyKey|Retrieves the canonical name of a property
PyObject *PyPSGetNameFromPropertyKey(PyObject *self, PyObject *args)
{
PROPERTYKEY key;
WCHAR *name=NULL;
// @pyparm <o PyPROPERTYKEY>|Key||A property key
if (!PyArg_ParseTuple(args, "O&:PSGetNameFromPropertyKey", PyWinObject_AsPROPERTYKEY, &key))
return NULL;
HRESULT hr;
PY_INTERFACE_PRECALL;
hr = PSGetNameFromPropertyKey(key, &name);
PY_INTERFACE_POSTCALL;
if ( FAILED(hr) )
return PyCom_BuildPyException(hr);
PyObject *ret = PyWinObject_FromWCHAR(name);
CoTaskMemFree(name);
return ret;
}
int _tmain(int argc, _TCHAR* argv[])
{
CLSID wid;
CoInitialize(NULL);
CLSIDFromString(const_cast<wchar_t*>(default_guid), &wid);
IInitializeWithFile *oo;
HRESULT hr;
if ((hr = CoCreateInstance(wid, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&oo))) != S_OK)
fail();
#if 0
IStorage *isto;
if ((hr = StgCreateDocfile(L"t.mp3", STGM_CREATE | STGM_READWRITE | STGM_SHARE_EXCLUSIVE | STGM_DIRECT, 0, &isto)) != S_OK)
fail();
IStream *is;
if ((hr = isto->CreateStream(L"lol", STGM_DIRECT | STGM_READWRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &is)) != S_OK)
fail();
#endif
IPropertyStore *ips;
IPropertyStoreCapabilities *ipcs;
if ((hr = oo->QueryInterface(IID_PPV_ARGS(&ips))) != S_OK)
fail();
if ((hr = oo->QueryInterface(IID_PPV_ARGS(&ipcs))) != S_OK)
fail();
//iws->Initialize(is, STGM_READWRITE);
if ((hr = oo->Initialize(L"t.mp3", STGM_READWRITE | STGM_SHARE_EXCLUSIVE | STGM_DIRECT)) != S_OK)
fail();
DWORD props;
if ((hr = ips->GetCount(&props)) != S_OK)
fail();
for (DWORD i = 0; i < props; ++i)
{
PROPERTYKEY pkey;
ips->GetAt(i, &pkey);
WCHAR *sz;
PSGetNameFromPropertyKey(pkey, &sz);
std::wcout << (ipcs->IsPropertyWritable(pkey) == S_OK) << "\t" << sz << std::endl;
}
return 0;
}
HRESULT EnumerateProperties(PCWSTR pszFilename)
{
IPropertyStore* pps = NULL;
// Call the helper to get the property store for the initialized item
// Note that as long as you have the property store, you are keeping the file open
// So always release it once you are done.
HRESULT hr = GetPropertyStore(pszFilename, GPS_DEFAULT, &pps);
if (SUCCEEDED(hr))
{
// Retrieve the number of properties stored in the item.
DWORD cProperties = 0;
hr = pps->GetCount(&cProperties);
if (SUCCEEDED(hr))
{
for (DWORD i = 0; i < cProperties; i++)
{
// Get the property key at a given index.
PROPERTYKEY key;
hr = pps->GetAt(i, &key);
if (SUCCEEDED(hr))
{
// Get the canonical name of the property
PWSTR pszCanonicalName = NULL;
hr = PSGetNameFromPropertyKey(key, &pszCanonicalName);
if (SUCCEEDED(hr))
{
hr = PrintProperty(pps, key, pszCanonicalName);
CoTaskMemFree(pszCanonicalName);
}
}
}
}
pps->Release();
}
else
{
wprintf(L"Error %x: getting the propertystore for the item.\n", hr);
}
return hr;
}
