Leaked source code of windows server 2003
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/*******************************************************************************
*
* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
*
* TITLE: WIAUIEXT.CPP
*
* VERSION: 1.0
*
* AUTHOR: ShaunIv
*
* DATE: 5/17/1999
*
* DESCRIPTION:
*
*******************************************************************************/
#include "precomp.h"
#pragma hdrstop
#include <atlimpl.cpp>
#include "wiauiext.h"
#include "wiadefui.h"
#include "wiascand.h"
#include "wiacamd.h"
#include "wiavidd.h"
#include "wiaffmt.h"
CWiaDefaultUI::~CWiaDefaultUI(void)
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::~CWiaDefaultUI"));
DllRelease();
}
CWiaDefaultUI::CWiaDefaultUI()
: m_cRef(1),
m_pSecondaryCallback(NULL),
m_nDefaultFormat(0),
m_hWndProgress(NULL)
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::CWiaDefaultUI"));
DllAddRef();
}
STDMETHODIMP CWiaDefaultUI::QueryInterface( REFIID riid, LPVOID *ppvObject )
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::QueryInterface"));
if (IsEqualIID( riid, IID_IUnknown ))
{
*ppvObject = static_cast<IWiaUIExtension*>(this);
}
else if (IsEqualIID( riid, IID_IWiaUIExtension ))
{
*ppvObject = static_cast<IWiaUIExtension*>(this);
}
else if (IsEqualIID( riid, IID_IWiaTransferHelper ))
{
*ppvObject = static_cast<IWiaTransferHelper*>(this);
}
else if (IsEqualIID( riid, IID_IWiaDataCallback ))
{
*ppvObject = static_cast<IWiaDataCallback*>(this);
}
else if (IsEqualIID( riid, IID_IWiaSupportedFormats ))
{
*ppvObject = static_cast<IWiaSupportedFormats*>(this);
}
else if (IsEqualIID( riid, IID_IShellExtInit ))
{
*ppvObject = static_cast<IShellExtInit*>(this);
}
else if (IsEqualIID( riid, IID_IShellPropSheetExt ))
{
*ppvObject = static_cast<IShellPropSheetExt*>(this);
}
else if (IsEqualIID( riid, IID_IWiaMiscellaneousHelpers ))
{
*ppvObject = static_cast<IWiaMiscellaneousHelpers*>(this);
}
else if (IsEqualIID( riid, IID_IWiaGetImageDlg ))
{
*ppvObject = static_cast<IWiaGetImageDlg*>(this);
}
else if (IsEqualIID( riid, IID_IWiaProgressDialog ))
{
*ppvObject = static_cast<IWiaProgressDialog*>(this);
}
else if (IsEqualIID( riid, IID_IWiaAnnotationHelpers ))
{
*ppvObject = static_cast<IWiaAnnotationHelpers*>(this);
}
else if (IsEqualIID( riid, IID_IWiaScannerPaperSizes))
{
*ppvObject = static_cast<IWiaScannerPaperSizes*>(this);
}
else
{
*ppvObject = NULL;
return (E_NOINTERFACE);
}
reinterpret_cast<IUnknown*>(*ppvObject)->AddRef();
return(S_OK);
}
STDMETHODIMP_(ULONG) CWiaDefaultUI::AddRef()
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::AddRef"));
return(InterlockedIncrement(&m_cRef));
}
STDMETHODIMP_(ULONG) CWiaDefaultUI::Release()
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::Release"));
LONG nRefCount = InterlockedDecrement(&m_cRef);
if (!nRefCount)
{
delete this;
}
return(nRefCount);
}
STDMETHODIMP CWiaDefaultUI::DeviceDialog( PDEVICEDIALOGDATA pDeviceDialogData )
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::DeviceDialog"));
if (!pDeviceDialogData)
{
return (E_INVALIDARG);
}
if (IsBadWritePtr(pDeviceDialogData,sizeof(DEVICEDIALOGDATA)))
{
return (E_INVALIDARG);
}
if (pDeviceDialogData->cbSize != sizeof(DEVICEDIALOGDATA))
{
return (E_INVALIDARG);
}
if (!pDeviceDialogData->pIWiaItemRoot)
{
return (E_INVALIDARG);
}
LONG nDeviceType;
if (!PropStorageHelpers::GetProperty( pDeviceDialogData->pIWiaItemRoot, WIA_DIP_DEV_TYPE, nDeviceType ))
{
return (E_INVALIDARG);
}
// In case there is some new device for which we don't have UI
HRESULT hr = E_NOTIMPL;
if (StiDeviceTypeDigitalCamera==GET_STIDEVICE_TYPE(nDeviceType))
{
hr = CameraDeviceDialog( pDeviceDialogData );
}
else if (StiDeviceTypeScanner==GET_STIDEVICE_TYPE(nDeviceType))
{
hr = ScannerDeviceDialog( pDeviceDialogData );
}
else if (StiDeviceTypeStreamingVideo==GET_STIDEVICE_TYPE(nDeviceType))
{
hr = VideoDeviceDialog( pDeviceDialogData );
}
return (hr);
}
STDMETHODIMP CWiaDefaultUI::GetDeviceIcon( LONG nDeviceType, HICON *phIcon, int nSize )
{
// Check args
if (!phIcon)
{
return E_POINTER;
}
//
// Supply a default icon size if none is specified
//
if (!nSize)
{
nSize = GetSystemMetrics( SM_CXICON );
}
//
// Initialize the returned icon
//
*phIcon = NULL;
// Assume a generic device
int nIconId = IDI_GENERICDEVICE;
//
// Get device-specific icon
//
if (StiDeviceTypeScanner==GET_STIDEVICE_TYPE(nDeviceType))
{
nIconId = IDI_SCANNER;
}
else if (StiDeviceTypeDigitalCamera==GET_STIDEVICE_TYPE(nDeviceType))
{
nIconId = IDI_CAMERA;
}
else if (StiDeviceTypeStreamingVideo==GET_STIDEVICE_TYPE(nDeviceType))
{
nIconId = IDI_VIDEODEVICE;
}
//
// Load the icon
//
*phIcon = reinterpret_cast<HICON>(LoadImage( g_hInstance, MAKEINTRESOURCE(nIconId), IMAGE_ICON, nSize, nSize, LR_DEFAULTCOLOR ));
if (!*phIcon)
{
return HRESULT_FROM_WIN32(GetLastError());
}
//
// It worked ok
//
return (S_OK);
}
STDMETHODIMP CWiaDefaultUI::GetAnnotationOverlayIcon( CAnnotationType AnnotationType, HICON *phIcon, int nSize )
{
if (!phIcon)
{
return E_INVALIDARG;
}
HICON hIcon = NULL;
*phIcon = NULL;
switch (AnnotationType)
{
case AnnotationAudio:
hIcon = reinterpret_cast<HICON>(LoadImage( g_hInstance, MAKEINTRESOURCE(IDI_ANNOTATION_AUDIO), IMAGE_ICON, nSize, nSize, LR_DEFAULTCOLOR ));
break;
case AnnotationUnknown:
hIcon = reinterpret_cast<HICON>(LoadImage( g_hInstance, MAKEINTRESOURCE(IDI_ANNOTATION_UNKNOWN), IMAGE_ICON, nSize, nSize, LR_DEFAULTCOLOR ));
break;
}
if (hIcon)
{
*phIcon = CopyIcon(hIcon);
}
return *phIcon ? S_OK : E_FAIL;
}
STDMETHODIMP CWiaDefaultUI::GetAnnotationType( IUnknown *pUnknown, CAnnotationType &AnnotationType )
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::GetAnnotationType"));
if (!pUnknown)
{
return E_INVALIDARG;
}
//
// Assume no annotations
//
AnnotationType = AnnotationNone;
//
// Get an IWiaItem*
//
CComPtr<IWiaItem> pWiaItem;
HRESULT hr = pUnknown->QueryInterface( IID_IWiaItem, (void**)&pWiaItem );
if (SUCCEEDED(hr))
{
//
// Low-hanging fruit: audio stored as a property--just return audio. It is unlikely that a driver would
// have both types of annotation.
//
LONG nAudioAvailable = FALSE;
if (PropStorageHelpers::GetProperty( pWiaItem, WIA_IPC_AUDIO_AVAILABLE, nAudioAvailable ) && nAudioAvailable)
{
AnnotationType = AnnotationAudio;
return S_OK;
}
//
// Get the item type
//
LONG nItemType = 0;
hr = pWiaItem->GetItemType(&nItemType);
if (SUCCEEDED(hr))
{
//
// If an item has the WiaItemTypeHasAttachments item type flag set, we know it has some attachments...
//
if (nItemType & WiaItemTypeHasAttachments)
{
//
// Assume we don't have any audio attachments
//
AnnotationType = AnnotationUnknown;
//
// Enumerate the children and look at the item types
//
CComPtr<IEnumWiaItem> pEnumWiaItem;
hr = pWiaItem->EnumChildItems( &pEnumWiaItem );
if (SUCCEEDED(hr))
{
//
// We will break out of the enumeration loop as soon as we find an audio file
//
bool bDone = false;
CComPtr<IWiaItem> pWiaItem;
while (S_OK == pEnumWiaItem->Next(1,&pWiaItem,NULL) && !bDone)
{
//
// Get the preferred format for this item.
//
GUID guidDefaultFormat = IID_NULL;
if (PropStorageHelpers::GetProperty( pWiaItem, WIA_IPA_PREFERRED_FORMAT, guidDefaultFormat ))
{
WIA_PRINTGUID((guidDefaultFormat,TEXT("guidDefaultFormat")));
//
// If we find even one audio attachment, we will promote this to
// be the default for UI purposes.
//
if (CWiaFileFormat::IsKnownAudioFormat(guidDefaultFormat))
{
//
// Save the annotation type
//
AnnotationType = AnnotationAudio;
//
// This will cause the while loop to exit
//
bDone = true;
}
}
//
// Release this interface
//
pWiaItem = NULL;
}
}
else
{
WIA_PRINTHRESULT((hr,TEXT("EnumChildItems failed")));
}
}
else
{
WIA_TRACE((TEXT("This item has no attachments. ItemType: %08X"), nItemType ));
}
}
else
{
WIA_PRINTHRESULT((hr,TEXT("Unable to get the item type")));
}
}
else
{
WIA_PRINTHRESULT((hr,TEXT("Can't get an IWiaItem*")));
}
WIA_TRACE((TEXT("Returning an annotation type of %d"), AnnotationType ));
return hr;
}
STDMETHODIMP CWiaDefaultUI::GetAnnotationFormat( IUnknown *pUnknown, GUID &guidFormat )
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::GetAnnotationFormat"));
//
// Validate args
//
if (!pUnknown)
{
return E_INVALIDARG;
}
//
// Assume this is not a valid annotation
//
guidFormat = IID_NULL;
//
// Get an IWiaItem*
//
CComPtr<IWiaItem> pWiaItem;
HRESULT hr = pUnknown->QueryInterface( IID_IWiaItem, (void**)&pWiaItem );
if (SUCCEEDED(hr))
{
//
// First, check to see if this item is an image with an audio annotation property
//
LONG nAudioAvailable = FALSE;
if (PropStorageHelpers::GetProperty( pWiaItem, WIA_IPC_AUDIO_AVAILABLE, nAudioAvailable ) && nAudioAvailable)
{
//
// If the driver supplied the format, use this
//
GUID guidAudioDataFormat = IID_NULL;
if (PropStorageHelpers::GetProperty( pWiaItem, WIA_IPC_AUDIO_DATA_FORMAT, guidAudioDataFormat ))
{
guidFormat = guidAudioDataFormat;
}
//
// Otherwise, assume it is WAV data
//
else
{
guidFormat = WiaAudFmt_WAV;
}
}
else
{
//
// Otherwise, this must be an attachment item. Use the helper interface to get the default format
//
CComPtr<IWiaSupportedFormats> pWiaSupportedFormats;
hr = CoCreateInstance( CLSID_WiaDefaultUi, NULL, CLSCTX_INPROC_SERVER, IID_IWiaSupportedFormats, (void**)&pWiaSupportedFormats );
if (SUCCEEDED(hr))
{
//
// This is always for file output
//
hr = pWiaSupportedFormats->Initialize( pWiaItem, TYMED_FILE );
if (SUCCEEDED(hr))
{
//
// Get the default format
//
GUID guidDefaultFormat = IID_NULL;
hr = pWiaSupportedFormats->GetDefaultClipboardFileFormat( &guidDefaultFormat );
if (SUCCEEDED(hr))
{
guidFormat = guidDefaultFormat;
}
else
{
WIA_PRINTHRESULT((hr,TEXT("pWiaSupportedFormats->GetDefaultClipboardFileFormat failed")));
}
}
else
{
WIA_PRINTHRESULT((hr,TEXT("pWiaSupportedFormats->Initialize failed")));
}
}
else
{
WIA_PRINTHRESULT((hr,TEXT("CoCreateInstance on CLSID_WiaDefaultUi, IID_IWiaSupportedFormats failed")));
}
}
}
else
{
WIA_PRINTHRESULT((hr,TEXT("Can't get an IWiaItem*")));
}
//
// If this is not a valid annotation, make sure we return an error.
//
if (SUCCEEDED(hr) && IID_NULL == guidFormat)
{
hr = E_FAIL;
WIA_PRINTHRESULT((hr,TEXT("guidFormat was IID_NULL")));
}
return hr;
}
STDMETHODIMP CWiaDefaultUI::GetAnnotationSize( IUnknown *pUnknown, LONG &nSize, LONG nMediaType )
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::GetAnnotationSize"));
//
// Validate args
//
if (!pUnknown)
{
return E_INVALIDARG;
}
//
// Assume this is not a valid annotation
//
nSize = 0;
//
// Get an IWiaItem*
//
CComPtr<IWiaItem> pWiaItem;
HRESULT hr = pUnknown->QueryInterface( IID_IWiaItem, (void**)&pWiaItem );
if (SUCCEEDED(hr))
{
//
// First, check to see if this item is an image with an audio annotation property
//
LONG nAudioAvailable = FALSE;
if (PropStorageHelpers::GetProperty( pWiaItem, WIA_IPC_AUDIO_AVAILABLE, nAudioAvailable ) && nAudioAvailable)
{
//
// Get the sound property to obtain its size
//
CComPtr<IWiaPropertyStorage> pWiaPropertyStorage;
hr = pWiaItem->QueryInterface( IID_IWiaPropertyStorage, (void**)(&pWiaPropertyStorage) );
if (SUCCEEDED(hr))
{
PROPVARIANT PropVar[1];
PROPSPEC PropSpec[1];
PropSpec[0].ulKind = PRSPEC_PROPID;
PropSpec[0].propid = WIA_IPC_AUDIO_DATA;
hr = pWiaPropertyStorage->ReadMultiple( ARRAYSIZE(PropSpec), PropSpec, PropVar );
if (SUCCEEDED(hr))
{
nSize = PropVar[0].caub.cElems;
}
FreePropVariantArray( ARRAYSIZE(PropVar), PropVar );
}
}
else
{
//
// Save the old media type
//
LONG nOldMediaType = 0;
if (PropStorageHelpers::GetProperty( pWiaItem, WIA_IPA_TYMED, nOldMediaType ))
{
//
// Set the requested media type
//
if (PropStorageHelpers::SetProperty( pWiaItem, WIA_IPA_TYMED, nMediaType ))
{
//
// Get the item size
//
PropStorageHelpers::GetProperty( pWiaItem, WIA_IPA_ITEM_SIZE, nSize );
}
//
// Restore the old media type
//
PropStorageHelpers::SetProperty( pWiaItem, WIA_IPA_TYMED, nOldMediaType );
}
}
}
else
{
WIA_PRINTHRESULT((hr,TEXT("Can't get a IWiaItem*")));
}
//
// If this is not a valid annotation, make sure we return an error.
//
if (SUCCEEDED(hr) && nSize == 0)
{
hr = E_FAIL;
WIA_PRINTHRESULT((hr,TEXT("nSize was 0")));
}
return hr;
}
class CAttachmentMemoryCallback : public IWiaDataCallback
{
private:
PBYTE m_pBuffer;
DWORD m_dwSize;
DWORD m_dwCurr;
private:
//
// Not implemented
//
CAttachmentMemoryCallback(void);
CAttachmentMemoryCallback( const CAttachmentMemoryCallback & );
CAttachmentMemoryCallback &operator=( const CAttachmentMemoryCallback & );
public:
CAttachmentMemoryCallback( PBYTE pBuffer, DWORD dwSize )
: m_pBuffer(pBuffer),
m_dwSize(dwSize),
m_dwCurr(0)
{
}
~CAttachmentMemoryCallback(void)
{
m_pBuffer = NULL;
m_dwSize = NULL;
}
STDMETHODIMP QueryInterface(const IID& iid, void** ppvObject)
{
if ((iid==IID_IUnknown) || (iid==IID_IWiaDataCallback))
{
*ppvObject = static_cast<LPVOID>(this);
}
else
{
*ppvObject = NULL;
return(E_NOINTERFACE);
}
reinterpret_cast<IUnknown*>(*ppvObject)->AddRef();
return(S_OK);
}
STDMETHODIMP_(ULONG) AddRef()
{
return 1;
}
STDMETHODIMP_(ULONG) Release()
{
return 1;
}
STDMETHODIMP BandedDataCallback( LONG lReason, LONG lStatus, LONG lPercentComplete, LONG lOffset, LONG lLength, LONG lReserved, LONG lResLength, PBYTE pbBuffer )
{
WIA_PUSH_FUNCTION((TEXT("CAttachmentMemoryCallback::BandedDataCallback( lReason: %08X, lStatus: %08X, lPercentComplete: %08X, lOffset: %08X, lLength: %08X, lReserved: %08X, lResLength: %08X, pbBuffer: %p )"), lReason, lStatus, lPercentComplete, lOffset, lLength, lReserved, lResLength, pbBuffer ));
if (lReason == IT_MSG_DATA)
{
if (lStatus & IT_STATUS_TRANSFER_TO_CLIENT)
{
if (lLength + m_dwCurr <= m_dwSize)
{
CopyMemory( m_pBuffer+m_dwCurr, pbBuffer, lLength );
m_dwCurr += lLength;
}
}
}
return S_OK;
}
};
STDMETHODIMP CWiaDefaultUI::TransferAttachmentToMemory( IUnknown *pUnknown, GUID &guidFormat, HWND hWndProgressParent, PBYTE *ppBuffer, DWORD *pdwSize )
{
//
// Validate args
//
if (!pUnknown || !ppBuffer || !pdwSize)
{
return E_INVALIDARG;
}
//
// Initialize args
//
*ppBuffer = NULL;
*pdwSize = 0;
CComPtr<IWiaItem> pWiaItem;
HRESULT hr = pUnknown->QueryInterface( IID_IWiaItem, (void**)&pWiaItem );
if (SUCCEEDED(hr))
{
//
// First, check to see if this item is an image with an audio annotation property
//
LONG nAudioAvailable = FALSE;
if (PropStorageHelpers::GetProperty( pWiaItem, WIA_IPC_AUDIO_AVAILABLE, nAudioAvailable ) && nAudioAvailable)
{
//
// Get the sound property to obtain its size
//
CComPtr<IWiaPropertyStorage> pWiaPropertyStorage;
hr = pWiaItem->QueryInterface( IID_IWiaPropertyStorage, (void**)(&pWiaPropertyStorage) );
if (SUCCEEDED(hr))
{
//
// Get the audio data itself
//
PROPVARIANT PropVar[1];
PROPSPEC PropSpec[1];
PropSpec[0].ulKind = PRSPEC_PROPID;
PropSpec[0].propid = WIA_IPC_AUDIO_DATA;
hr = pWiaPropertyStorage->ReadMultiple( ARRAYSIZE(PropSpec), PropSpec, PropVar );
if (SUCCEEDED(hr))
{
//
// Allocate memory to hold the data and copy it over
//
*ppBuffer = reinterpret_cast<PBYTE>(CoTaskMemAlloc(PropVar[0].caub.cElems));
if (*ppBuffer)
{
CopyMemory( *ppBuffer, PropVar[0].caub.pElems, PropVar[0].caub.cElems );
*pdwSize = static_cast<DWORD>(PropVar[0].caub.cElems);
hr = S_OK;
}
else
{
hr = E_OUTOFMEMORY;
}
}
//
// Release the original memory
//
FreePropVariantArray( ARRAYSIZE(PropVar), PropVar );
}
}
//
// This is an attachment, not a property
//
else
{
//
// Get the size of the annotation
//
LONG nSize = 0;
hr = GetAnnotationSize( pUnknown, nSize, TYMED_CALLBACK );
if (SUCCEEDED(hr))
{
//
// Allocate some memory for it
//
PBYTE pData = reinterpret_cast<PBYTE>(CoTaskMemAlloc( nSize ));
if (pData)
{
//
// Zero the memory
//
ZeroMemory( pData, nSize );
//
// Prepare the callback class
//
CAttachmentMemoryCallback AttachmentMemoryCallback( pData, nSize );
//
// Get the callback interface
//
CComPtr<IWiaDataCallback> pWiaDataCallback;
hr = AttachmentMemoryCallback.QueryInterface( IID_IWiaDataCallback, (void**)&pWiaDataCallback );
if (SUCCEEDED(hr))
{
//
// Create the transfer helper
//
CComPtr<IWiaTransferHelper> pWiaTransferHelper;
hr = CoCreateInstance( CLSID_WiaDefaultUi, NULL, CLSCTX_INPROC_SERVER, IID_IWiaTransferHelper, (void**)&pWiaTransferHelper );
if (SUCCEEDED(hr))
{
//
// Transfer the data
//
hr = pWiaTransferHelper->TransferItemBanded( pWiaItem, hWndProgressParent, hWndProgressParent?0:WIA_TRANSFERHELPER_NOPROGRESS, guidFormat, 0, pWiaDataCallback );
if (S_OK == hr)
{
//
// Save the buffer and the size
//
*ppBuffer = pData;
*pdwSize = static_cast<DWORD>(nSize);
//
// NULL out the data pointer so we don't free it below. The caller will free it with CoTaskMemFree.
//
pData = NULL;
}
}
}
if (pData)
{
CoTaskMemFree(pData);
}
}
else
{
hr = E_OUTOFMEMORY;
}
}
}
}
return hr;
}
// Calling this function can be horribly slow, because it has to search the whole device list to
// find the correct icon. You should use IWiaMiscellaneousHelpers::GetDeviceIcon( nDeviceType, ... )
// instead, if the device type is known.
STDMETHODIMP CWiaDefaultUI::GetDeviceIcon( BSTR bstrDeviceId, HICON *phIcon, ULONG nSize )
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::GetDeviceIcon"));
// Sanity check the device id
if (!bstrDeviceId || !lstrlenW(bstrDeviceId))
{
return E_INVALIDARG;
}
// Get the device type
LONG nDeviceType = 0;
WiaUiUtil::GetDeviceTypeFromId(bstrDeviceId,&nDeviceType);
// Return the device icon
return GetDeviceIcon( nDeviceType, phIcon, nSize );
}
STDMETHODIMP CWiaDefaultUI::GetDeviceBitmapLogo( BSTR bstrDeviceId, HBITMAP *phBitmap, ULONG nMaxWidth, ULONG nMaxHeight )
{
WIA_PUSHFUNCTION(TEXT("CWiaDefaultUI::GetDeviceBitmapLogo"));
return (E_NOTIMPL);
}
// IWiaGetImageDlg
STDMETHODIMP CWiaDefaultUI::GetImageDlg(
IWiaDevMgr *pIWiaDevMgr,
HWND hwndParent,
LONG lDeviceType,
LONG lFlags,
LONG lIntent,
IWiaItem *pSuppliedItemRoot,
BSTR bstrFilename,
GUID *pguidFormat )
{
HRESULT hr;
CComPtr<IWiaItem> pRootItem;
// Put up a wait cursor
CWaitCursor wc;
if (!pIWiaDevMgr || !pguidFormat || !bstrFilename)
{
WIA_ERROR((TEXT("GetImageDlg: Invalid pIWiaDevMgr, pguidFormat or bstrFilename")));
return(E_POINTER);
}
// If a root item wasn't passed, select the device.
if (pSuppliedItemRoot == NULL)
{
hr = pIWiaDevMgr->SelectDeviceDlg( hwndParent, lDeviceType, lFlags, NULL, &pRootItem );
if (FAILED(hr))
{
WIA_ERROR((TEXT("GetImageDlg, SelectDeviceDlg failed")));
return(hr);
}
if (hr != S_OK)
{
WIA_ERROR((TEXT("GetImageDlg, DeviceDlg cancelled")));
return(hr);
}
}
else
{
pRootItem = pSuppliedItemRoot;
}
// Put up the device UI.
LONG nItemCount;
IWiaItem **ppIWiaItem;
hr = pRootItem->DeviceDlg( hwndParent, lFlags, lIntent, &nItemCount, &ppIWiaItem );
if (SUCCEEDED(hr) && hr == S_OK)
{
if (ppIWiaItem && nItemCount)
{
CComPtr<IWiaTransferHelper> pWiaTransferHelper;
hr = CoCreateInstance( CLSID_WiaDefaultUi, NULL, CLSCTX_INPROC_SERVER, IID_IWiaTransferHelper, (void**)&pWiaTransferHelper );
if (SUCCEEDED(hr))
{
hr = pWiaTransferHelper->TransferItemFile( ppIWiaItem[0], hwndParent, 0, *pguidFormat, bstrFilename, NULL, TYMED_FILE );
}
}
// Release the items and free the array memory
for (int i=0; ppIWiaItem && i<nItemCount; i++)
{
if (ppIWiaItem[i])
{
ppIWiaItem[i]->Release();
}
}
if (ppIWiaItem)
{
CoTaskMemFree(ppIWiaItem);
}
}
return(hr);
}
STDMETHODIMP CWiaDefaultUI::SelectDeviceDlg(
HWND hwndParent,
BSTR bstrInitialDeviceId,
LONG lDeviceType,
LONG lFlags,
BSTR *pbstrDeviceID,
IWiaItem **ppWiaItemRoot )
{
SELECTDEVICEDLG SelectDeviceDlgData;
ZeroMemory( &SelectDeviceDlgData, sizeof(SELECTDEVICEDLG) );
SelectDeviceDlgData.cbSize = sizeof(SELECTDEVICEDLG);
SelectDeviceDlgData.hwndParent = hwndParent;
SelectDeviceDlgData.pwszInitialDeviceId = NULL;
SelectDeviceDlgData.nDeviceType = lDeviceType;
SelectDeviceDlgData.nFlags = lFlags;
SelectDeviceDlgData.ppWiaItemRoot = ppWiaItemRoot;
SelectDeviceDlgData.pbstrDeviceID = pbstrDeviceID;
return ::SelectDeviceDlg( &SelectDeviceDlgData );
}