void ocr(LPCTSTR pszName)
{
USES_CONVERSION;
HRESULT hr = NULL;
IDocument *pDoc = NULL;
IImages *pImages = NULL;
IImage *pImage = NULL;
ILayout *pLayout = NULL;
IWords *pWords = NULL;
IWord *pWord = NULL;
IMiRects *pRects = NULL;
IMiRect *pRect = NULL;
long iCount = 0, wCount = 0, rCount = 0, count = 0;
long left, top, right, bottom, minTop = 0, maxBottom = 0, savedMaxBottom = 0;
short conf = 0;
double tConf = 0.0;
CComBSTR bstrName;
BSTR bstrText;
CString strText;
#if _OCR_DEBUG > 0
CString strDebug;
strDebug.Format("OCR %s!", pszName);
MessageBox(NULL, strDebug, "OCR.DLL", MB_ICONINFORMATION);
#endif
hr = CoInitialize(0);
// hr = CoInitializeEx(pReserved, COINIT_MULTITHREADED);
// hr = CoInitializeEx(pReserved, COINIT_APARTMENTTHREADED);
#if _OCR_DEBUG > 0
strDebug.Format("CoInitialize result = 0x%08X!", hr);
MessageBox(NULL, strDebug, "OCR.DLL", MB_ICONINFORMATION);
#endif
if (!SUCCEEDED(hr)) return;
hr = CoCreateInstance(CLSID_Document, NULL, CLSCTX_INPROC_SERVER, IID_IDocument, (void**) &pDoc);
// hr = CoCreateInstance(CLSID_Document, NULL, CLSCTX_INPROC_SERVER, IID_IDocument, (void**) &pDisp);
// hr = pDisp->QueryInterface(IID_IDocument, (void**) &pDoc);
// hr = pDoc.CoCreateInstance(CLSID_Document);
// hr = CoGetClassObject(CLSID_Document, CLSCTX_INPROC_SERVER, NULL, IID_IDocument, (void**) &pDoc);
#if _OCR_DEBUG > 0
strDebug.Format("CoCreateInstance result = 0x%08X!", hr);
MessageBox(NULL, strDebug, "OCR.DLL", MB_ICONINFORMATION);
#endif
if (!SUCCEEDED(hr)) return;
bstrName = pszName;
hr = pDoc->Create(bstrName);
#if _OCR_DEBUG > 0
strDebug.Format("IDocument created, result = 0x%08X!", hr);
MessageBox(NULL, strDebug, "OCR.DLL", MB_ICONINFORMATION);
#endif
if (!SUCCEEDED(hr)) return;
hr = pDoc->OCR(miLANG_CHINESE_SIMPLIFIED, FALSE, FALSE);
#if _OCR_DEBUG > 0
strDebug.Format("IDocument OCR result = 0x%08X!", hr);
MessageBox(NULL, strDebug, "OCR.DLL", MB_ICONINFORMATION);
#endif
if (!SUCCEEDED(hr)) return;
pDoc->get_Images(&pImages);
pImages->get_Count(&iCount);
for (long i = 0; i < iCount; i++ )
{
pImages->get_Item(i, (IDispatch**)&pImage);
pImage->get_Layout(&pLayout);
pLayout->get_Words(&pWords);
pWords->get_Count(&wCount);
for (long j = 0; j < wCount; j++)
{
pWords->get_Item(j, (IDispatch**)&pWord);
pWord->get_Rects(&pRects);
pRects->get_Count(&rCount);
minTop = maxBottom = 0;
for (long k = 0; k < rCount; k++)
{
pRects->get_Item(k, (IDispatch**)&pRect);
pRect->get_Left(&left);
pRect->get_Top(&top);
pRect->get_Right(&right);
pRect->get_Bottom(&bottom);
if (minTop == 0) minTop = top;
if (minTop > top) minTop = top;
if (maxBottom < bottom) maxBottom = bottom;
if (pRect) pRect->Release();
}
if (pRects) pRects->Release();
if (savedMaxBottom == 0) savedMaxBottom = maxBottom;
if (minTop >= savedMaxBottom)
{
tConf /= count;
savedMaxBottom = maxBottom;
strText = "";
tConf = 0.0;
count = 0;
}
pWord->get_Text(&bstrText);
pWord->get_RecognitionConfidence(&conf);
tConf += conf;
count++;
strText += bstrText ? OLE2CT(bstrText) : _T("");
if (pWord) pWord->Release();
}
if (strText.GetLength() > 0)
{
tConf /= count;
strText = "";
tConf = 0.0;
count = 0;
}
if (pWords) pWords->Release();
if (pLayout) pLayout->Release();
if (pImage) pImage->Release();
}
if (pImages) pImages->Release();
pDoc->Close(0);
pDoc->Release();
CoUninitialize();
return pItems;
}
