mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
503 lines
15 KiB
503 lines
15 KiB
///////////////////////////////////////////////////////////////////////////////
|
|
/* File: prshtext.cpp
|
|
|
|
Description: DSKQUOTA property sheet extention implementation.
|
|
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
08/15/96 Initial creation. BrianAu
|
|
07/03/97 Added m_hrInitialization member. BrianAu
|
|
01/23/98 Removed m_hrInitialization member. BrianAu
|
|
06/25/98 Disabled snapin code with #ifdef POLICY_MMC_SNAPIN. BrianAu
|
|
Switching to ADM-file approach to entering policy
|
|
data. Keeping snapin code available in case
|
|
we decide to switch back at a later time.
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
#include "pch.h" // PCH
|
|
#pragma hdrstop
|
|
|
|
#include "dskquota.h"
|
|
#include "prshtext.h"
|
|
#include "guidsp.h"
|
|
|
|
extern LONG g_cLockThisDll;
|
|
|
|
|
|
DiskQuotaPropSheetExt::DiskQuotaPropSheetExt(
|
|
VOID
|
|
) : m_cRef(0),
|
|
m_dwDlgTemplateID(0),
|
|
m_lpfnDlgProc(NULL),
|
|
m_hPage(NULL),
|
|
m_pQuotaControl(NULL),
|
|
m_cOleInitialized(0)
|
|
{
|
|
DBGTRACE((DM_PRSHTEXT, DL_HIGH, TEXT("DiskQuotaPropSheetExt::DiskQuotaPropSheetExt")));
|
|
InterlockedIncrement(&g_cRefThisDll);
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/* Function: DiskQuotaPropSheetExt::~DiskQuotaPropSheetExt
|
|
|
|
Description: Destructor for the property sheet extension class.
|
|
|
|
Arguments: None.
|
|
|
|
Returns: Nothing.
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
08/15/96 Initial creation. BrianAu
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
DiskQuotaPropSheetExt::~DiskQuotaPropSheetExt(VOID)
|
|
{
|
|
DBGTRACE((DM_PRSHTEXT, DL_HIGH, TEXT("DiskQuotaPropSheetExt::~DiskQuotaPropSheetExt")));
|
|
|
|
if (NULL != m_pQuotaControl)
|
|
{
|
|
m_pQuotaControl->Release();
|
|
m_pQuotaControl = NULL;
|
|
}
|
|
|
|
//
|
|
// Call OleUninitialize for each time OleInitialize was called in Initialize().
|
|
//
|
|
while(0 != m_cOleInitialized--)
|
|
{
|
|
DBGASSERT((0 <= m_cOleInitialized)); // Make sure we don't go negative.
|
|
CoUninitialize();
|
|
}
|
|
|
|
InterlockedDecrement(&g_cRefThisDll);
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/* Function: DiskQuotaPropSheetExt::QueryInterface
|
|
|
|
Description: Returns an interface pointer to the object's IUnknown
|
|
and IShellPropSheetExt interfaces.
|
|
|
|
Arguments:
|
|
riid - Reference to requested interface ID.
|
|
|
|
ppvOut - Address of interface pointer variable to accept interface ptr.
|
|
|
|
Returns:
|
|
NO_ERROR - Success.
|
|
E_NOINTERFACE - Requested interface not supported.
|
|
E_INVALIDARG - ppvOut argument was NULL.
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
08/15/96 Initial creation. BrianAu
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
DiskQuotaPropSheetExt::QueryInterface(
|
|
REFIID riid,
|
|
LPVOID *ppvOut
|
|
)
|
|
{
|
|
HRESULT hResult = E_NOINTERFACE;
|
|
|
|
if (NULL == ppvOut)
|
|
return E_INVALIDARG;
|
|
|
|
*ppvOut = NULL;
|
|
|
|
if (IID_IUnknown == riid ||
|
|
IID_IShellPropSheetExt == riid
|
|
#ifdef POLICY_MMC_SNAPIN
|
|
|| IID_ISnapInPropSheetExt == riid // This is not a "real" interface.
|
|
#endif
|
|
)
|
|
{
|
|
*ppvOut = this;
|
|
}
|
|
|
|
#ifdef POLICY_MMC_SNAPIN
|
|
else if (IID_IDiskQuotaPolicy == riid)
|
|
{
|
|
hResult = CreateDiskQuotaPolicyObject(reinterpret_cast<IDiskQuotaPolicy **>(ppvOut));
|
|
}
|
|
#endif
|
|
|
|
if (NULL != *ppvOut)
|
|
{
|
|
((LPUNKNOWN)*ppvOut)->AddRef();
|
|
hResult = NOERROR;
|
|
}
|
|
|
|
return hResult;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/* Function: DiskQuotaPropSheetExt::AddRef
|
|
|
|
Description: Increments object reference count.
|
|
|
|
Arguments: None.
|
|
|
|
Returns: New reference count value.
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
08/15/96 Initial creation. BrianAu
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP_(ULONG)
|
|
DiskQuotaPropSheetExt::AddRef(
|
|
VOID
|
|
)
|
|
{
|
|
ULONG ulReturn = m_cRef + 1;
|
|
|
|
DBGPRINT((DM_COM, DL_HIGH, TEXT("DiskQuotaPropSheetExt::AddRef, 0x%08X %d -> %d\n"),
|
|
this, ulReturn - 1, ulReturn));
|
|
|
|
InterlockedIncrement(&m_cRef);
|
|
|
|
return ulReturn;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/* Function: DiskQuotaPropSheetExt::Release
|
|
|
|
Description: Decrements object reference count. If count drops to 0,
|
|
object is deleted.
|
|
|
|
Arguments: None.
|
|
|
|
Returns: New reference count value.
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
08/15/96 Initial creation. BrianAu
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP_(ULONG)
|
|
DiskQuotaPropSheetExt::Release(
|
|
VOID
|
|
)
|
|
{
|
|
ULONG ulReturn = m_cRef - 1;
|
|
|
|
DBGPRINT((DM_COM, DL_HIGH, TEXT("DiskQuotaPropSheetExt::Release, 0x%08X %d -> %d\n"),
|
|
this, ulReturn + 1, ulReturn));
|
|
|
|
if (InterlockedDecrement(&m_cRef) == 0)
|
|
{
|
|
delete this;
|
|
ulReturn = 0;
|
|
}
|
|
return ulReturn;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/* Function: DiskQuotaPropSheetExt::Initialize
|
|
|
|
Description: Initializes a new property sheet extension object.
|
|
|
|
Arguments:
|
|
idVolume - Reference to a CVolumeID object containing both parsable
|
|
and displayable names for the volume. In the case of
|
|
normal volumes, this is the same string. In the case
|
|
of mounted volumes, it may not be depending on what's
|
|
provided by the OS for the mounted volume. Most mounted
|
|
volumes have names like "\\?\Volume{ GUID }\".
|
|
|
|
dwDlgTemplateID - Resource ID for the dialog template to use for the
|
|
property sheet.
|
|
|
|
lpfnDlgProc - Address of dialog's window message procedure.
|
|
|
|
Returns:
|
|
NO_ERROR - Success.
|
|
ERROR_ACCESS_DENIED (hr) - Read access denied to the device.
|
|
|
|
Exceptions: OutOfMemory.
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
08/15/96 Initial creation. BrianAu
|
|
06/27/98 Replaced volume name arg with CVolumeID arg to BrianAu
|
|
support mounted volumes.
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
DiskQuotaPropSheetExt::Initialize(
|
|
const CVolumeID& idVolume,
|
|
DWORD dwDlgTemplateID,
|
|
DLGPROC lpfnDlgProc
|
|
)
|
|
{
|
|
HRESULT hResult = NO_ERROR;
|
|
|
|
DBGASSERT((NULL != lpfnDlgProc));
|
|
DBGASSERT((0 != dwDlgTemplateID));
|
|
|
|
m_idVolume = idVolume;
|
|
m_dwDlgTemplateID = dwDlgTemplateID;
|
|
m_lpfnDlgProc = lpfnDlgProc;
|
|
|
|
//
|
|
// Volume parsing name will be blank for a snap-in prop page since
|
|
// it isn't displayed on behalf of any particular volume.
|
|
//
|
|
if (!m_idVolume.ForParsing().IsEmpty())
|
|
{
|
|
hResult = CoInitialize(NULL);
|
|
if (SUCCEEDED(hResult))
|
|
{
|
|
IDiskQuotaControl *pqc;
|
|
m_cOleInitialized++; // Need to call OleUninitialize once more in dtor.
|
|
|
|
//
|
|
// Validate that we can use quotas by instantiating the quota control
|
|
// object. If this fails the user probably doesn't have access
|
|
// to manipulate quotas.
|
|
//
|
|
hResult = GetQuotaController(&pqc);
|
|
if (SUCCEEDED(hResult))
|
|
{
|
|
pqc->Release();
|
|
//
|
|
// Also release the cached m_pQuotaControl ptr.
|
|
// We don't want to hold open a handle to the volume if our
|
|
// page is not active.
|
|
//
|
|
m_pQuotaControl->Release();
|
|
m_pQuotaControl = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
return hResult;
|
|
}
|
|
|
|
//
|
|
// Get a pointer to the IDiskQuotaControl interface.
|
|
// If the cached m_pQuotaControl ptr is non-NULL we merely AddRef this
|
|
// and return it to the caller. Otherwise we CoCreate a new controller,
|
|
// cache the pointer in m_pQuotaControl and return that.
|
|
//
|
|
// History:
|
|
// Originally we opened the controller in ::Initialize() and cached
|
|
// the pointer in m_pQuotaControl. The controller remained alive
|
|
// until the prop SHEET was destroyed. This was holding open a handle
|
|
// to the volume device which prevented the disk checking function
|
|
// on the "Tools" page from accessing the volume. Therefore I
|
|
// changed the code so that now we call GetQuotaController whenever
|
|
// we want an IDiskQuotaControl pointer. The caller releases that
|
|
// ptr when done with it. Whenever the prop page becomes inactive
|
|
// we release the cached m_pQuotaControl. This ensures that the
|
|
// code has the volume open only when the page is active.
|
|
// [brianau - 5/21/99]
|
|
//
|
|
//
|
|
HRESULT
|
|
DiskQuotaPropSheetExt::GetQuotaController(
|
|
IDiskQuotaControl **ppqc
|
|
)
|
|
{
|
|
HRESULT hr = NOERROR;
|
|
|
|
*ppqc = NULL;
|
|
if (NULL == m_pQuotaControl)
|
|
{
|
|
//
|
|
// No cached ptr. Create a new controller.
|
|
//
|
|
hr = CoCreateInstance(CLSID_DiskQuotaControl,
|
|
NULL,
|
|
CLSCTX_INPROC_SERVER,
|
|
IID_IDiskQuotaControl,
|
|
(LPVOID *)&m_pQuotaControl);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = m_pQuotaControl->Initialize(m_idVolume.ForParsing(), TRUE);
|
|
if (FAILED(hr))
|
|
{
|
|
m_pQuotaControl->Release();
|
|
m_pQuotaControl = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (NULL != m_pQuotaControl)
|
|
{
|
|
//
|
|
// Ptr is cached. Merely addref and return it.
|
|
//
|
|
*ppqc = m_pQuotaControl;
|
|
static_cast<IUnknown *>(*ppqc)->AddRef();
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/* Function: DiskQuotaPropSheetExt::AddPages
|
|
|
|
Description: Called by the shell when a page is to be added to the property
|
|
sheet.
|
|
|
|
Arguments:
|
|
lpfnAddPage - Address of a callback function provided by the shell
|
|
that is to be called if the property page creation succedes.
|
|
|
|
lParam - Parameter to pass to lpfnAddPage function.
|
|
|
|
Returns:
|
|
NO_ERROR - Success.
|
|
E_FAIL - Failed to create or add page.
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
08/15/96 Initial creation. BrianAu
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
DiskQuotaPropSheetExt::AddPages(
|
|
LPFNADDPROPSHEETPAGE lpfnAddPage,
|
|
LPARAM lParam
|
|
)
|
|
{
|
|
HRESULT hResult = E_FAIL; // Assume failure.
|
|
|
|
PROPSHEETPAGE psp;
|
|
|
|
psp.dwSize = sizeof(psp);
|
|
psp.dwFlags = PSP_USECALLBACK | PSP_USEREFPARENT;
|
|
psp.hInstance = g_hInstDll;
|
|
psp.pszTemplate = MAKEINTRESOURCE(m_dwDlgTemplateID);
|
|
psp.hIcon = NULL;
|
|
psp.pszTitle = NULL;
|
|
psp.pfnDlgProc = m_lpfnDlgProc;
|
|
psp.lParam = (LPARAM)this;
|
|
psp.pcRefParent = (UINT *)& g_cRefThisDll;
|
|
psp.pfnCallback = (LPFNPSPCALLBACK)PropSheetPageCallback;
|
|
|
|
m_hPage = CreatePropertySheetPage(&psp);
|
|
if (NULL != m_hPage)
|
|
{
|
|
if (!lpfnAddPage(m_hPage, lParam))
|
|
{
|
|
DBGERROR((TEXT("PRSHTEXT - Failed to add page.\n")));
|
|
DestroyPropertySheetPage(m_hPage);
|
|
m_hPage = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DBGERROR((TEXT("PRSHTEXT - CreatePropertySheetPage failed.\n")));
|
|
}
|
|
if (NULL != m_hPage)
|
|
{
|
|
//
|
|
// Incr ref count to keep the extension object alive.
|
|
// The shell will release it as soon as the page is created.
|
|
// We'll release it on PSPCB_RELEASE in PropSheetPageCallback.
|
|
//
|
|
AddRef();
|
|
hResult = NO_ERROR;
|
|
}
|
|
|
|
return hResult;
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/* Function: DiskQuotaPropSheetExt::PropSheetPageCallback
|
|
|
|
Description: Called by the property sheet code when the property page
|
|
is being created and again when it is being destroyed. This gives the
|
|
page a chance to act at these critical points. We primarily use it
|
|
to call Release() on the page extension which calls the virtual
|
|
destructor, ultimately destroying the VolumePropPage or FolderPropPage
|
|
object.
|
|
|
|
Arguments:
|
|
hwnd - Always NULL (according to SDK docs).
|
|
|
|
uMsg - PSPCB_CREATE = Creating page.
|
|
PSPCB_RELEASE = Destroying page.
|
|
|
|
ppsp - Pointer to the PROPSHEETPAGE structure for the page.
|
|
|
|
Returns:
|
|
Return value is ignore when uMsg is PSPCB_RELEASE.
|
|
On PSPCB_CREATE, returning 0 instructs the PropertySheet to NOT
|
|
display the page. 1 means OK to display page.
|
|
|
|
Revision History:
|
|
|
|
Date Description Programmer
|
|
-------- --------------------------------------------------- ----------
|
|
09/12/96 Initial creation. BrianAu
|
|
*/
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
UINT CALLBACK
|
|
DiskQuotaPropSheetExt::PropSheetPageCallback(
|
|
HWND hwnd,
|
|
UINT uMsg,
|
|
LPPROPSHEETPAGE ppsp
|
|
)
|
|
{
|
|
UINT uReturn = 1;
|
|
DiskQuotaPropSheetExt *pThis = (DiskQuotaPropSheetExt *)ppsp->lParam;
|
|
DBGASSERT((NULL != pThis));
|
|
|
|
switch(uMsg)
|
|
{
|
|
case PSPCB_CREATE:
|
|
//
|
|
// uReturn == 0 means Don't create the prop page.
|
|
//
|
|
uReturn = pThis->OnPropSheetPageCreate(ppsp);
|
|
break;
|
|
|
|
case PSPCB_RELEASE:
|
|
//
|
|
// uReturn is ignored for this uMsg.
|
|
//
|
|
pThis->OnPropSheetPageRelease(ppsp);
|
|
//
|
|
// This will release the extension and call the virtual
|
|
// destructor (which will destroy the prop page object).
|
|
//
|
|
pThis->Release();
|
|
break;
|
|
}
|
|
return uReturn;
|
|
}
|
|
|