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windows-nt/Source/XPSP1/NT/printscan/ui/printui/shellext.cxx

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/*++
Copyright (C) Microsoft Corporation, 1997 - 1999
All rights reserved.
Module Name:
shellext.cxx
Abstract:
Printer shell extension.
Author:
Steve Kiraly (SteveKi) 02-Feb-1997
Revision History:
--*/
#include "precomp.hxx"
#pragma hdrstop
#include "portslv.hxx"
#include "dsinterf.hxx"
#include "prtprop.hxx"
#include "physloc.hxx"
#include "locprop.hxx"
#include "findloc.hxx"
#include "shellext.hxx"
#include "spinterf.hxx"
#include "prtshare.hxx"
#include <initguid.h>
#include "winprtp.h"
/********************************************************************
In-process server functions
********************************************************************/
/*++
Name:
DllGetClassObject
Description:
DllGetClassObject is called by the shell to
create a class factory object.
Arguments:
rclsid - Reference to class ID specifier
riid - Reference to interface ID specifier
ppv - Pointer to location to receive interface pointer
Return Value:
HRESULT code signifying success or failure
--*/
STDAPI
DllGetClassObject(
REFCLSID rclsid,
REFIID riid,
LPVOID *ppv
)
{
*ppv = NULL;
//
// Make sure the class ID is CLSID_PrintUIExtension. Otherwise, the class
// factory doesn't support the object type specified by rclsid.
//
if (!IsEqualCLSID (rclsid, CLSID_PrintUIShellExtension))
return ResultFromScode (CLASS_E_CLASSNOTAVAILABLE);
//
// Instantiate a class factory object.
//
TClassFactory *pClassFactory = new TClassFactory ();
if (pClassFactory == NULL)
return ResultFromScode (E_OUTOFMEMORY);
//
// Get the interface pointer from QueryInterface and copy it to *ppv.
//
HRESULT hr = pClassFactory->QueryInterface (riid, ppv);
pClassFactory->Release ();
return hr;
}
/*++
Name:
DllCanUnloadNow
Description:
DllCanUnloadNow is called by the shell to find out if the
DLL can be unloaded. The answer is yes if (and only if)
the module reference count stored in gcRefThisDll is 0.
Arguments:
None
Return Value:
HRESULT code equal to S_OK if the DLL can be unloaded,
S_FALSE if not.
--*/
STDAPI
DllCanUnloadNow(
VOID
)
{
LONG lObjectsAlive = COMObjects_GetCount() + gcRefThisDll;
return ResultFromScode( lObjectsAlive == 0 ? S_OK : S_FALSE );
}
////////////////////////////////
// QueryInterface tables
// TClassFactory
QITABLE_BEGIN(TClassFactory)
QITABENT(TClassFactory, IClassFactory), // IID_IClassFactory
QITABLE_END()
// TShellExtension
QITABLE_BEGIN(TShellExtension)
QITABENT(TShellExtension, IShellExtInit), // IID_IShellExtInit
QITABENT(TShellExtension, IContextMenu), // IID_IContextMenu
QITABENT(TShellExtension, IShellPropSheetExt), // IID_IShellPropSheetExt
QITABENT(TShellExtension, IDsFolderProperties), // IID_IDsFolderProperties
QITABENT(TShellExtension, IDsPrinterProperties), // IID_IDsPrinterProperties
QITABENT(TShellExtension, IFindPrinter), // IID_IFindPrinter
QITABENT(TShellExtension, IPhysicalLocation), // IID_IPhysicalLocation
QITABENT(TShellExtension, IPrnStream), // IID_IPrnStream
QITABENT(TShellExtension, IStream), // IID_IStream
QITABENT(TShellExtension, IPrintUIServices), // IID_IPrintUIServices
QITABLE_END()
/********************************************************************
TClassFactory member functions
********************************************************************/
TClassFactory::
TClassFactory(
VOID
)
{
InterlockedIncrement( &gcRefThisDll );
}
TClassFactory::
~TClassFactory(
VOID
)
{
InterlockedDecrement( &gcRefThisDll );
}
/*++
Name:
CreateInstance
Description:
CreateInstance is called by the shell to create a
shell extension object.
Arguments:
pUnkOuter - Pointer to controlling unknown
riid - Reference to interface ID specifier
ppvObj - Pointer to location to receive interface pointer
Return Value:
HRESULT code signifying success or failure
--*/
STDMETHODIMP
TClassFactory::
CreateInstance(
LPUNKNOWN pUnkOuter,
REFIID riid,
LPVOID *ppvObj
)
{
*ppvObj = NULL;
//
// Return an error code if pUnkOuter is not NULL,
// we don't support aggregation.
//
if (pUnkOuter != NULL)
{
return CLASS_E_NOAGGREGATION;
}
//
// Instantiate a shell extension object.
// ref count == 1 after construction.
//
TShellExtension *pShellExtension = new TShellExtension ();
if( pShellExtension == NULL )
{
return E_OUTOFMEMORY;
}
//
// Get the specified interface pointer.
//
HRESULT hr = pShellExtension->QueryInterface( riid, ppvObj );
//
// Release initial reference.
//
pShellExtension->Release ();
return hr;
}
/*++
Name:
LockServer
Description:
LockServer increments or decrements the DLL's lock count.
Currently not implemented.
Arguments:
fLock - Increments or decrements the lock count.
Return Value:
This method supports the standard return values E_FAIL,
E_OUTOFMEMORY, and E_UNEXPECTED, as well as the following:
S_OK The specified object was either locked ( fLock = TRUE)
or unlocked from memory ( fLock = FALSE).
--*/
STDMETHODIMP
TClassFactory::
LockServer(
BOOL fLock
)
{
return E_NOTIMPL;
}
/********************************************************************
TShellExtension member functions
********************************************************************/
TShellExtension::
TShellExtension(
VOID
): _lpdobj( NULL ),
_cItem( 0 ),
_pPhysicalLocation( NULL ),
_pLocationPropertySheet( NULL ),
_pLocationDlg( NULL )
{
DBGMSG( DBG_TRACE, ("TShellExtension::TShellExtension\n") );
_szContextName[0] = 0;
InterlockedIncrement( &gcRefThisDll );
}
TShellExtension::
~TShellExtension(
VOID
)
{
DBGMSG( DBG_TRACE, ("TShellExtension::~TShellExtension\n") );
if( _lpdobj )
{
_lpdobj->Release();
}
delete _pPhysicalLocation;
delete _pLocationDlg;
TLocationPropertySheetFrontEnd::Destroy( &_pLocationPropertySheet );
InterlockedDecrement( &gcRefThisDll );
}
/*++
Name:
Initialize
Description:
Initialize is called by the shell to initialize a shell extension.
Arguments:
pidlFolder - Pointer to ID list identifying parent folder
lpdobj - Pointer to IDataObject interface for selected object(s)
hKeyProgId - Registry key handle
Return Value:
HRESULT code signifying success or failure
--*/
STDMETHODIMP
TShellExtension::
Initialize(
LPCITEMIDLIST pidlFolder,
LPDATAOBJECT lpdobj,
HKEY hKeyProgID
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::Initialize\n" ) );
if (_lpdobj)
{
_lpdobj->Release();
}
_lpdobj = lpdobj;
if (_lpdobj)
{
_lpdobj->AddRef();
}
return NOERROR;
}
/*++
Name:
QueryContextMenu
Description:
QueryContextMenu is called before a context menu is displayed so the
extension handler can add items to the menu.
Arguments:
hMenu - Context menu handle
indexMenu - Index for first new menu item
idCmdFirst - Item ID for first new menu item
idCmdLast - Maximum menu item ID that can be used
uFlags - Flags, are bit field specifying in what context the shell
Return Value:
HRESULT code signifying success or failure. If successful, the 'code'
field specifies the number of items added to the context menu.
--*/
STDMETHODIMP
TShellExtension::
QueryContextMenu(
HMENU hMenu,
UINT indexMenu,
UINT idCmdFirst,
UINT idCmdLast,
UINT uFlags
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::QueryContextMenu\n" ) );
HRESULT hr = E_FAIL;
return hr;
}
/*++
Name:
InvokeCommand
Description:
InvokeCommand is called when a menu item added
by the extension handler is selected.
Arguments:
lpcmi - Pointer to CMINVOKECOMMAND structure
Return Value:
HRESULT code signifying success or failure
--*/
STDMETHODIMP
TShellExtension::
InvokeCommand(
LPCMINVOKECOMMANDINFO lpcmi
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::InvokeCommand\n" ) );
HRESULT hr = E_FAIL;
//
// Return an error code if we've been called programmatically.
//
if( !HIWORD( (ULONG_PTR)lpcmi->lpVerb ) )
{
//
// Dispatch to the correct command.
//
switch( LOWORD( (ULONG_PTR)lpcmi->lpVerb ) )
{
case 1:
default:
hr = E_INVALIDARG;
break;
}
}
return hr;
}
/*++
Name:
GetCommandString
Description:
GetCommandString is called to retrieve a string of help text or a
language-independent command string for an item added to the context
menu.
Arguments:
idCmd - 0-based offset of menu item identifier
uFlags - Requested information type
reserved - Pointer to reserved value (do not use)
pszName - Pointer to buffer to receive the string
cchMax - Buffer size
Return Value:
HRESULT code signifying success or failure
--*/
STDMETHODIMP
TShellExtension::
GetCommandString(
UINT_PTR idCmd,
UINT uFlags,
UINT *Reserved,
LPSTR pszName,
UINT cchMax
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::GetCommandString\n" ) );
HRESULT hr = E_INVALIDARG;
TString strCmdString;
switch( uFlags )
{
case GCS_HELPTEXT:
case GCS_VALIDATE:
case GCS_VERB:
default:
hr = E_INVALIDARG;
break;
}
return hr;
}
/*++
Name:
ContextMenuFormatToNumeric
Description:
Converts the context menu format bit field to a numeric
value. The bit field is broken because CMF_NORMAL
is definded as zero which need to be special cased.
Arguments:
uFlags - Flags passed to QueryContextMenu()
Return Value:
Context menu fromat enumeration.
--*/
UINT
TShellExtension::
ContextMenuFormatToNumeric(
IN UINT uFlags
) const
{
UINT ContextMenuFormat = kUnknown;
//
// The normal value is 0, This is
// so bogus, to define a bit field and
// make one of the bits zero.
//
if( ( uFlags & 0x000F ) == CMF_NORMAL )
{
ContextMenuFormat = k_CMF_NORMAL;
}
else if( uFlags & CMF_VERBSONLY )
{
ContextMenuFormat = k_CMF_VERBSONLY;
}
else if( uFlags & CMF_EXPLORE )
{
ContextMenuFormat = k_CMF_EXPLORE;
}
else if( uFlags & CMF_DEFAULTONLY )
{
ContextMenuFormat = k_CMF_DEFAULTONLY;
}
else
{
ContextMenuFormat = kUnknown;
}
return ContextMenuFormat;
}
/*++
Name:
bIsAddPrinterWizard
Description:
bIsAddPrinterWizard checks if the object selected by this
shell extension is actually the add printer wizard object.
Arguments:
Nothing.
Return Value:
TRUE object is add printer wizard, FALSE not add printer wizard.
--*/
BOOL
TShellExtension::
bIsAddPrinterWizard(
VOID
) const
{
FORMATETC fe = { (WORD)RegisterClipboardFormat( CFSTR_PRINTERGROUP ),
NULL,
DVASPECT_CONTENT,
-1,
TYMED_HGLOBAL };
BOOL bRetval = FALSE;
STGMEDIUM medium;
TCHAR szFile[MAX_PATH];
//
// Fail the call if m_lpdobj is NULL.
//
if( _lpdobj && SUCCEEDED( _lpdobj->GetData( &fe, &medium ) ) )
{
//
// Get the selected item name.
//
if( DragQueryFile( (HDROP)medium.hGlobal, 0, szFile, COUNTOF( szFile ) ) )
{
//
// Check if this is the magic Add Printer Wizard shell object.
// The check is not case sensitive.
//
if( !_tcscmp( szFile, gszNewObject ) )
{
DBGMSG( DBG_TRACE, ( "Magical Add Printer Wizard object found.\n" ) );
bRetval = TRUE;
}
}
//
// Release the storge medium.
//
ReleaseStgMedium( &medium );
}
return bRetval;
}
/*++
Name:
bGetContextName
Description:
Routine to get the context name of the object in the shell.
This routine will work properly with the remote printers folder.
Arguments:
Nothing.
Return Value:
TRUE context menu name retrieved and stored in the _szContextName
buffer. FLASE if name not retrieved.
--*/
BOOL
TShellExtension::
bGetContextName(
VOID
)
{
FORMATETC fe = { (WORD)RegisterClipboardFormat( CFSTR_SHELLIDLIST ),
NULL,
DVASPECT_CONTENT,
-1,
TYMED_HGLOBAL };
BOOL bRetval = FALSE;
STGMEDIUM medium;
//
// Fail the call if m_lpdobj is NULL.
//
if( _lpdobj && SUCCEEDED( _lpdobj->GetData( &fe, &medium ) ) )
{
if (medium.hGlobal)
{
LPIDA pIDA = (LPIDA)medium.hGlobal;
//
// Save the item count.
//
_cItem = pIDA->cidl;
LPCITEMIDLIST pidlContainer = (LPCITEMIDLIST)((LPBYTE)pIDA + pIDA->aoffset[0]);
LPCITEMIDLIST pidl = (LPCITEMIDLIST)((LPBYTE)pIDA + pIDA->aoffset[1]);
//
// Get the printer object context name. Note: A remote printers
// folder object needs the full context information on the object.
// i.e. \\server_name\printer_name
//
if( bGetDisplayName( pidlContainer, pidl, _szContextName, COUNTOF( _szContextName ) ) )
{
DBGMSG( DBG_TRACE, ( "Context Name " TSTR "\n", _szContextName ) );
bRetval = TRUE;
}
}
//
// Release the medium storage.
//
ReleaseStgMedium (&medium);
}
return bRetval;
}
/*++
Name:
bGetDisplayName
Description:
Routine to get the context name of the object in the shell.
This routine will work properly with the remote printers folder.
Arguments:
pidlContainer - pidle of containter,
pidl - relative pidle passed by shell,
pszDisplayName - pointer to display name buffer,
cchSize - size in characters of display name buffer.
Return Value:
TRUE display name fill into provided display name buffer.
FLASE if display name was not returned in buffer.
--*/
BOOL
TShellExtension::
bGetDisplayName(
LPCITEMIDLIST pidlContainer,
LPCITEMIDLIST pidl,
LPTSTR pszDisplayName,
UINT cchSize
)
{
HRESULT hres;
LPSHELLFOLDER psfDesktop;
LPSHELLFOLDER psf;
if( !pidlContainer || !pidl )
{
DBGMSG( DBG_TRACE, ( "NULL pidl as argument\n" ) );
return FALSE;
}
hres = SHGetDesktopFolder(&psfDesktop);
if (SUCCEEDED(hres))
{
hres = psfDesktop->BindToObject(pidlContainer, NULL, IID_IShellFolder, (PVOID*)&psf);
if (SUCCEEDED(hres))
{
STRRET str;
hres = psf->GetDisplayNameOf(pidl, SHGDN_FORPARSING, &str);
if (SUCCEEDED(hres))
{
if( str.uType == STRRET_WSTR )
{
_tcsncpy( pszDisplayName, (LPTSTR)str.pOleStr, cchSize-1 );
//
// Since this string was alocated from the IMalloc heap
// we must free it to the same place.
//
IMalloc *pMalloc;
hres = CoGetMalloc( 1, &pMalloc );
if( SUCCEEDED(hres))
{
pMalloc->Free( str.pOleStr );
pMalloc->Release();
}
}
else if( str.uType == STRRET_CSTR )
{
_tcsncpy( pszDisplayName, (LPTSTR)str.cStr, cchSize-1 );
}
}
psf->Release();
}
psfDesktop->Release();
}
return SUCCEEDED(hres) ? TRUE : FALSE;
}
/*++
Name:
AddPages
Description:
AddPages is called by the shell to give property sheet shell extensions
the opportunity to add pages to a property sheet before it is displayed.
Arguments:
lpfnAddPage - Pointer to function called to add a page
lParam - lParam parameter to be passed to lpfnAddPage
Return Value:
HRESULT code signifying success or failure
--*/
STDMETHODIMP
TShellExtension::
AddPages(
LPFNADDPROPSHEETPAGE lpfnAddPage,
LPARAM lParam
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::AddPages\n" ) );
return TLocationPropertySheetFrontEnd::Create( &_pLocationPropertySheet, this, _lpdobj, lpfnAddPage, lParam );
}
/*++
Name:
ReplacePage
Description:
ReplacePage is called by the shell to give control panel extensions the
opportunity to replace control panel property sheet pages. It is never
called for conventional property sheet extensions, so we simply return
a failure code if called.
Arguments:
uPageID - Page to replace
lpfnReplaceWith - Pointer to function called to replace a page
lParam - lParam parameter to be passed to lpfnReplaceWith
Return Value:
HRESULT code signifying success or failure
--*/
STDMETHODIMP
TShellExtension::
ReplacePage(
UINT uPageID,
LPFNADDPROPSHEETPAGE lpfnReplaceWith,
LPARAM lParam
)
{
return E_NOTIMPL;
}
/*++
Name:
ShowProperties
Description:
This is a private interface used to override the "Properties" verb
displayed in the DS client UI.
Arguments:
hwndParent - Window handle of the calling window.
pDataObject - Pointer to an IDataObject from the DS name client UI.
Return Value:
S_FALSE no UI was displayed the the caller should display properties
--*/
STDMETHODIMP
TShellExtension::
ShowProperties(
IN HWND hwndParent,
IN IDataObject *pDataObject
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::ShowProperties\n" ) );
BOOL bDisplayed = FALSE;
HRESULT hr = S_OK;
DWORD dwStatus = dwPrinterPropPages( hwndParent, pDataObject, &bDisplayed );
if( dwStatus != ERROR_SUCCESS )
{
if( !bDisplayed )
{
//
// Display an error message indicating that properties cannot be displayed.
//
iMessage( hwndParent,
IDS_ERR_PRINTER_PROP_TITLE,
IDS_ERR_PRINTER_PROP_NONE,
MB_OK|MB_ICONSTOP,
kMsgNone,
NULL );
}
hr = E_FAIL;
}
return hr;
}
/*++
Name:
ShowProperties
Description:
This is a private interface used to override the "Properties" verb
displayed in the DS client UI.
Arguments:
hwndParent - Window handle of the calling window.
pszObjectProperties - Pointer to either DS path or Unc Name
Return Value:
S_FALSE no UI was displayed the the caller should display properties
--*/
STDMETHODIMP
TShellExtension::
ShowProperties(
IN HWND hwndParent,
IN LPCTSTR pszObjectPath,
IN PBOOL pbDisplayed
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::ShowProperties\n" ) );
HRESULT hr = S_OK;
if( dwPrinterPropPages( hwndParent, pszObjectPath, pbDisplayed ) != ERROR_SUCCESS )
{
hr = E_FAIL;
}
return hr;
}
/*++
Name:
FindPrinter
Description:
This is a private interface used to find a printer either in the
DS or on the network.
Arguments:
hwndParent - Window handle of the calling window.
pszBuffer - pointer to buffer where to store returned printer name.
puSize - input points to the size of the provided buffer in characters,
on return points to the size of the returned printer name.
Return Value:
S_OK printer was found and buffer contains the returned name.
--*/
STDMETHODIMP
TShellExtension::
FindPrinter(
IN HWND hwndParent,
IN OUT LPTSTR pszBuffer,
IN UINT *puSize
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::ShowProperties\n" ) );
HRESULT hr = E_FAIL;
if( bPrinterSetup( hwndParent, MSP_FINDPRINTER, *puSize, pszBuffer, puSize, NULL ) )
{
hr = S_OK;
}
else if( GetLastError() == ERROR_INSUFFICIENT_BUFFER )
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
DiscoverPhysicalLocation
Description:
This routine is used to start the physical location discovery
process. The physical location discovery process will potentialy
issue network calls which can take a large amount of time.
Users of the IPhysicalLocation interface are required to call this
method before getting the physical Location string, using
GetPhyscialLocation.
Arguments:
none.
Return Value:
S_OK printer location was discovered, error code if the discovery
process failed or a physical location string was not found.
--*/
STDMETHODIMP
TShellExtension::
DiscoverPhysicalLocation(
VOID
)
{
HRESULT hr = E_FAIL;
//
// Create the physical location object if this is the first call.
//
if (!_pPhysicalLocation)
{
_pPhysicalLocation = new TPhysicalLocation;
}
//
// Invoke the discover method if the physical location
// object was create successfully.
//
if (VALID_PTR(_pPhysicalLocation))
{
hr = _pPhysicalLocation->Discover() ? S_OK : E_FAIL;
}
else
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
GetExactPhysicalLocation
Description:
This routine gets the physical location string of this machine. Callers
of this interface are required to call DiscoverPhysicalLocation prior to
calling this method or this method will fail.
Arguments:
pbsLocation - Contains a pointer to a BSTR where to return the location string.
Return Value:
S_OK physical location was discovered, error code if the discovery
process failed or a physical location string was not found.
--*/
STDMETHODIMP
TShellExtension::
GetExactPhysicalLocation(
IN OUT BSTR *pbsLocation
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::GetExactPhysicalLocation.\n" ) );
HRESULT hr = E_FAIL;
//
// Was Discover called, is object initialized?
//
if (_pPhysicalLocation)
{
TString strLocation;
//
// Get the physical location search string.
//
hr = _pPhysicalLocation->GetExact( strLocation ) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
//
// Allocate the location string.
//
*pbsLocation = SysAllocString( strLocation );
hr = (*pbsLocation) ? S_OK : E_OUTOFMEMORY;
}
}
else
{
hr = E_POINTER;
}
return hr;
}
/*++
Name:
GetSearchPhysicalLocation
Description:
This routine gets the best physical location search string for this machine.
Users of this interface are required to call DiscoverPhysicalLocation
prior to calling this method or this method will fail.
Arguments:
pbsLocation - Contains a pointer to a BSTR where to return the location string.
Return Value:
S_OK physical location was discovered, error code if the discovery
process failed or a physical location string was not found.
--*/
STDMETHODIMP
TShellExtension::
GetSearchPhysicalLocation(
IN OUT BSTR *pbsLocation
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::GetSearchPhysicalLocation.\n" ) );
HRESULT hr = E_FAIL;
//
// Was Discover called, is object initialized?
//
if (_pPhysicalLocation)
{
TString strLocation;
//
// Get the physical location search string.
//
hr = _pPhysicalLocation->GetSearch( strLocation ) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
//
// Allocate the location string.
//
*pbsLocation = SysAllocString( strLocation );
hr = (*pbsLocation) ? S_OK : E_OUTOFMEMORY;
}
}
else
{
hr = E_POINTER;
}
return hr;
}
/*++
Name:
GetUserPhysicalLocation
Description:
This routine gets the physical location string of the user object in the DS
Arguments:
pbsLocation - Contains a pointer to a BSTR where to return the location string.
Return Value:
S_OK physical location returned
--*/
STDMETHODIMP
TShellExtension::
GetUserPhysicalLocation(
IN OUT BSTR *pbsLocation
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::GetUserPhysicalLocation.\n" ) );
HRESULT hr = E_FAIL;
//
// Create the physical location object if this is the first call.
//
if (!_pPhysicalLocation)
{
_pPhysicalLocation = new TPhysicalLocation;
}
if (VALID_PTR(_pPhysicalLocation))
{
TString strLocation;
hr = _pPhysicalLocation->ReadUserLocationProperty( strLocation ) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
//
// Allocate the location string.
//
*pbsLocation = SysAllocString( strLocation );
hr = (*pbsLocation) ? S_OK : E_OUTOFMEMORY;
}
}
else
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
GetMachinePhysicalLocation
Description:
This routine gets the physical location string of this machine. The physical
location string of this object may come from either group policy or the DS.
Arguments:
pbsLocation - Contains a pointer to a BSTR where to return the location string.
Return Value:
S_OK physical location returned
--*/
STDMETHODIMP
TShellExtension::
GetMachinePhysicalLocation(
IN OUT BSTR *pbsLocation
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::GetMachinePhysicalLocation.\n" ) );
HRESULT hr = E_FAIL;
//
// Create the physical location object if this is the first call.
//
if (!_pPhysicalLocation)
{
_pPhysicalLocation = new TPhysicalLocation;
}
if (VALID_PTR( _pPhysicalLocation ))
{
TString strLocation;
//
// First try the policy location.
//
hr = _pPhysicalLocation->ReadGroupPolicyLocationSetting( strLocation ) ? S_OK : E_FAIL;
//
// If the policy location was not found look in the DS.
//
if (FAILED(hr))
{
hr = _pPhysicalLocation->ReadMachinesLocationProperty( strLocation ) ? S_OK : E_FAIL;
}
if (SUCCEEDED(hr))
{
//
// Allocate the location string.
//
*pbsLocation = SysAllocString( strLocation );
hr = (*pbsLocation) ? S_OK : E_OUTOFMEMORY;
}
}
else
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
GetSubnetPhysicalLocation
Description:
This routine gets the physical location string of the subnet object that closely
matches this the subnet this machine is currently using.
Arguments:
pbsLocation - Contains a pointer to a BSTR where to return the location string.
Return Value:
S_OK physical location returned
--*/
STDMETHODIMP
TShellExtension::
GetSubnetPhysicalLocation(
IN OUT BSTR *pbsLocation
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::GetSubnetPhysicalLocation.\n" ) );
HRESULT hr = E_FAIL;
//
// Create the physical location object if this is the first call.
//
if (!_pPhysicalLocation)
{
_pPhysicalLocation = new TPhysicalLocation;
}
if (VALID_PTR( _pPhysicalLocation ))
{
TString strLocation;
hr = _pPhysicalLocation->ReadSubnetLocationProperty( strLocation ) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
//
// Allocate the location string.
//
*pbsLocation = SysAllocString( strLocation );
hr = (*pbsLocation) ? S_OK : E_OUTOFMEMORY;
}
}
else
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
GetSitePhysicalLocation
Description:
This routine gets the physical location string of the size this machine
belongs to.
Arguments:
pbsLocation - Contains a pointer to a BSTR where to return the location string.
Return Value:
S_OK physical location returned
--*/
STDMETHODIMP
TShellExtension::
GetSitePhysicalLocation(
IN OUT BSTR *pbsLocation
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::GetSitePhysicalLocation.\n" ) );
HRESULT hr = E_FAIL;
//
// Create the physical location object if this is the first call.
//
if (!_pPhysicalLocation)
{
_pPhysicalLocation = new TPhysicalLocation;
}
if (VALID_PTR( _pPhysicalLocation ))
{
TString strLocation;
hr = _pPhysicalLocation->ReadSiteLocationProperty( strLocation ) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
//
// Allocate the location string.
//
*pbsLocation = SysAllocString( strLocation );
hr = (*pbsLocation) ? S_OK : E_OUTOFMEMORY;
}
}
else
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
BrowseForLocation
Description:
Displays UI for selecting a slash-delimited location name from among those
specified by the DS admin for subnet objects
Arguments:
hParent - HWND to use as parent of dialog window
bsDefault - location name to for initial tree expansion/selection
pbsLocation - Receives selected location name
Return Value:
S_OK location returned
Notes:
--*/
STDMETHODIMP
TShellExtension::
BrowseForLocation(
IN HWND hParent,
IN BSTR bsDefault,
IN OUT BSTR *pbsLocation
)
{
DBGMSG( DBG_TRACE, ( "TShellExtension::BrowseLocation.\n" ) );
TStatusB bStatus;
HRESULT hr = E_FAIL;
//
// Create the dialog object if this is the first call.
//
if (!_pLocationDlg)
{
_pLocationDlg = new TFindLocDlg;
}
//
// Check if the location dialog is valid.
//
bStatus DBGNOCHK = VALID_PTR( _pLocationDlg );
if( bStatus )
{
TString strLocation;
TString strDefault;
bStatus DBGCHK = strDefault.bUpdate( bsDefault );
hr = _pLocationDlg->bDoModal( hParent, &strDefault ) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
hr = _pLocationDlg->bGetLocation( strLocation ) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
//
// Allocate the location string.
//
*pbsLocation = SysAllocString( strLocation );
hr = (*pbsLocation) ? S_OK : E_OUTOFMEMORY;
}
}
}
else
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
TShellExtension::ShowPhysicalLocationUI
Description:
Determine if Location Lite is enabled for this machine
Arguments:
None
Return Value:
S_OK if enabled
Notes:
--*/
STDMETHODIMP
TShellExtension::
ShowPhysicalLocationUI(
VOID
)
{
HRESULT hr = E_FAIL;
//
// Create the physical location object if this is the first call.
//
if (!_pPhysicalLocation)
{
_pPhysicalLocation = new TPhysicalLocation;
}
if (VALID_PTR(_pPhysicalLocation))
{
hr = _pPhysicalLocation->bLocationEnabled() ? S_OK : E_FAIL;
}
else
{
hr = E_OUTOFMEMORY;
}
return hr;
}
/*++
Name:
TShellExtension::CheckToCreateStreams
Description:
Check to create m_spPrnStream & m_spStream
Arguments:
None
Return Value:
S_OK if succeeded
--*/
HRESULT
TShellExtension::
CheckToCreateStreams(
VOID
)
{
HRESULT hr = S_OK;
if( !m_spPrnStream || !m_spStream )
{
// release the smart pointers first
m_spPrnStream = NULL;
m_spStream = NULL;
// call into winspool.drv to create an instance
hr = Winspool_CreateInstance(IID_IPrnStream, m_spPrnStream.GetPPV());
if( SUCCEEDED(hr) )
{
hr = m_spPrnStream->QueryInterface(IID_IStream, m_spStream.GetPPV());
}
}
return ((m_spPrnStream && m_spStream) ? hr : E_FAIL);
}
/*++
Name:
TShellExtension::BindPrinterAndFile
Description:
Creates a PrnStream object if it don't exists and bind it to a printer and a file
Arguments:
printer name
file name
Return Value:
S_OK if succeeded
--*/
STDMETHODIMP
TShellExtension::
BindPrinterAndFile(
IN LPCTSTR pszPrinter,
IN LPCTSTR pszFile
)
{
HRESULT hr = E_FAIL;
if( SUCCEEDED(hr = CheckToCreateStreams()) )
{
return m_spPrnStream->BindPrinterAndFile(pszPrinter, pszFile);
}
return hr;
}
/*++
Name:
TShellExtension::StorePrinterInfo
Description:
Creates a PrnStream object if it don't exists and invoke StorePrinterInfo
Arguments:
flags that specifies what settings to store
Return Value:
S_OK if succeeded
--*/
STDMETHODIMP
TShellExtension::
StorePrinterInfo(
IN DWORD Flag
)
{
HRESULT hr = E_FAIL;
if( SUCCEEDED(hr = CheckToCreateStreams()) )
{
return m_spPrnStream->StorePrinterInfo(Flag);
}
return hr;
}
/*++
Name:
TShellExtension::RestorePrinterInfo
Description:
Creates a PrnStream object if it don't exists and invoke RestorePrinterInfo
Arguments:
flags that specifies what settings to restore
Return Value:
S_OK if succeeded
--*/
STDMETHODIMP
TShellExtension::
RestorePrinterInfo(
IN DWORD Flag
)
{
HRESULT hr = E_FAIL;
if( SUCCEEDED(hr = CheckToCreateStreams()) )
{
return m_spPrnStream->RestorePrinterInfo(Flag);
}
return hr;
}
/*++
Name:
TShellExtension::QueryPrinterInfo
Description:
Creates a PrnStream object if it don't exists and invoke QueryPrinterInfo
Arguments:
flags that specifies what settings to query
Return Value:
S_OK if succeeded
--*/
STDMETHODIMP
TShellExtension::
QueryPrinterInfo(
IN PrinterPersistentQueryFlag Flag,
OUT PersistentInfo *pPrstInfo
)
{
HRESULT hr = E_FAIL;
if( SUCCEEDED(hr = CheckToCreateStreams()) )
{
return m_spPrnStream->QueryPrinterInfo(Flag, pPrstInfo);
}
return hr;
}
/*++
Name:
TShellExtension::Read
Description:
Creates a PrnStream object if it don't exists and invoke Read
Arguments:
pv - The buffer that the bytes are read into
cb - The offset in the stream to begin reading from.
pcbRead - The number of bytes to read
Return Value:
S_OK if succeeded
--*/
STDMETHODIMP
TShellExtension::
Read(
VOID * pv,
ULONG cb,
ULONG * pcbRead
)
{
HRESULT hr = E_FAIL;
if( SUCCEEDED(hr = CheckToCreateStreams()) )
{
return m_spStream->Read(pv, cb, pcbRead);
}
return hr;
}
/*++
Name:
TShellExtension::Write
Description:
Creates a PrnStream object if it don't exists and invoke Write
Arguments:
pv - The buffer to write from.
cb - The offset in the array to begin writing from
pcbRead - The number of bytes to write
Return Value:
S_OK if succeeded
--*/
STDMETHODIMP
TShellExtension::
Write(
VOID const* pv,
ULONG cb,
ULONG * pcbWritten
)
{
HRESULT hr = E_FAIL;
if( SUCCEEDED(hr = CheckToCreateStreams()) )
{
return m_spStream->Write(pv, cb, pcbWritten);
}
return hr;
}
/*++
Name:
TShellExtension::Seek
Description:
Creates a PrnStream object if it don't exists and invoke Seek
Arguments:
dlibMove - The offset relative to dwOrigin
dwOrigin - The origin of the offset
plibNewPosition - Pointer to value of the new seek pointer from the beginning of the stream
Return Value:
S_OK if succeeded
--*/
STDMETHODIMP
TShellExtension::
Seek(
LARGE_INTEGER dlibMove,
DWORD dwOrigin,
ULARGE_INTEGER * plibNewPosition
)
{
HRESULT hr = E_FAIL;
if( SUCCEEDED(hr = CheckToCreateStreams()) )
{
return m_spStream->Seek(dlibMove, dwOrigin, plibNewPosition);
}
return hr;
}
/*++
Name:
TShellExtension::SetSize
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
SetSize(
ULARGE_INTEGER nSize
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::CopyTo
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
CopyTo(
LPSTREAM pStrm,
ULARGE_INTEGER cb,
ULARGE_INTEGER * pcbRead,
ULARGE_INTEGER * pcbWritten
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::Commit
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
Commit(
IN DWORD dwFlags
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::Revert
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
Revert(
VOID
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::LockRegion
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
LockRegion(
ULARGE_INTEGER cbOffset,
ULARGE_INTEGER cbLength,
DWORD dwFlags
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::UnlockRegion
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
UnlockRegion(
ULARGE_INTEGER cbOffset,
ULARGE_INTEGER cbLength,
DWORD dwFlags
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::Stat
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
Stat(
STATSTG * pStatStg,
DWORD dwFlags
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::Clone
Description:
Arguments:
Return Value:
E_NOTIMPL
--*/
STDMETHODIMP
TShellExtension::
Clone(
LPSTREAM * ppStrm
)
{
return E_NOTIMPL;
}
/*++
Name:
TShellExtension::GenerateShareName
Description:
Arguments:
lpszServer - print server name
lpszBaseName - base name to start from
lpszOut - where to return the generated name
cchMaxChars - buffer size in characters
Return Value:
S_OK on success or OLE error otherwise
--*/
STDMETHODIMP
TShellExtension::
GenerateShareName(
LPCTSTR lpszServer,
LPCTSTR lpszBaseName,
LPTSTR lpszOut,
int cchMaxChars
)
{
HRESULT hr = E_INVALIDARG;
// lpszServer can be NULL to specify the local server,
// but lpszBaseName & lpszOut shouldn't be.
if( lpszBaseName && lpszOut )
{
TPrtShare prtShare(lpszServer);
TString strShareName, strBaseName;
strBaseName.bUpdate(lpszBaseName);
if( VALID_OBJ(prtShare) && VALID_OBJ(strBaseName) &&
prtShare.bNewShareName(strShareName, strBaseName) && strShareName.uLen() )
{
lstrcpyn(lpszOut, strShareName, cchMaxChars);
hr = (0 == lstrcmp(lpszOut, strShareName)) ? S_OK :
HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
}
else
{
hr = E_FAIL;
}
}
return hr;
}
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