L_OcrPage_GetRecognizedCharacters

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
#define OCR_ADVANTAGE_RUNTIME_DIR TEXT("C:\\LEADTOOLS 19\\Bin\\Common\\OcrAdvantageRuntime") 
L_INT L_OcrPage_GetRecognizedCharactersExample() 
{ 
   // Create an image with some text in it 
   BITMAPHANDLE bitmap = { 0 }; 
   L_OcrEngine ocrEngine = NULL; 
   L_OcrPage ocrPage = NULL; 
   L_OcrPageCharacters ocrPageCharacters = { 0 }; 
   L_OcrDocumentManager ocrDocumentManager = NULL; 
   L_OcrDocument ocrDocument = NULL; 
   // Create an image to write text on 
   L_CreateBitmap(&bitmap, sizeof(BITMAPHANDLE), TYPE_CONV, 640, 200, 24, ORDER_BGR, NULL, TOP_LEFT, NULL, 0); 
   // Create a device context to write with 
   L_HDC LeadDC = L_CreateLeadDC(&bitmap); 
   L_INT StartGDIX = 0,   /* Drawing coordinates */ 
   StartGDIY = 0, 
   EndGDIX = BITMAPWIDTH(&bitmap), 
   EndGDIY = BITMAPHEIGHT(&bitmap); 
   if(LeadDC != NULL) 
   { 
      HFONT hFont; 
      RECT drawArea; 
      // Correct viewer coordinates if necessary 
      if (bitmap.ViewPerspective != TOP_LEFT) 
      { 
         L_PointToBitmap ( &bitmap, TOP_LEFT, & StartGDIX, & StartGDIY ); 
         L_PointToBitmap ( &bitmap, TOP_LEFT, & EndGDIX, & EndGDIY ); 
      } 
      SelectObject(LeadDC, GetStockObject(WHITE_PEN)); 
      SelectObject(LeadDC, GetStockObject(NULL_BRUSH)); 
      SetRect(&drawArea, StartGDIX, StartGDIY, EndGDIX, EndGDIY); 
      // Make the image white 
      FillRect(LeadDC, &drawArea, CreateSolidBrush(RGB(255,255,255))); 
      // Set font properties for drawing 
      hFont = CreateFont(20, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_OUTLINE_PRECIS, 
      CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, VARIABLE_PITCH, TEXT("Arial")); 
      SelectObject(LeadDC, hFont); 
      // Now write some text 
      SetRect(&drawArea, 0, 0, 100, 20); 
      int numChars = 11; 
      DrawText(LeadDC, TEXT("Normal line"), numChars, &drawArea, DT_TOP | DT_LEFT); 
      // Change font properties 
      hFont = CreateFont(20, 0, 0, 0, FW_BOLD, TRUE, TRUE, FALSE, DEFAULT_CHARSET, OUT_OUTLINE_PRECIS, 
      CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, VARIABLE_PITCH, TEXT("Arial")); 
      SelectObject(LeadDC,hFont); 
      // Write a second line 
      SetRect(&drawArea, 0, 40, 200, 100); 
      numChars = 26; 
      DrawText(LeadDC, TEXT("Bold, italic and underline"), numChars, &drawArea, DT_TOP | DT_LEFT); 
      // Change font properties again 
      hFont = CreateFont(20, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_OUTLINE_PRECIS, 
      CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, VARIABLE_PITCH, TEXT("Courier New")); 
      SelectObject(LeadDC,hFont); 
      // Write a third line 
      SetRect(&drawArea, 0, 80, 160, 100); 
      numChars = 15; 
      DrawText(LeadDC, TEXT("Monospaced line"), numChars, &drawArea, DT_TOP | DT_LEFT); 
      DeleteObject(hFont); 
   } 
   // We don't need this context anymore, so free it 
   L_DeleteLeadDC(LeadDC); 
   // Create an instance of the engine 
   L_INT retCode = L_OcrEngineManager_CreateEngine(L_OcrEngineType_Advantage, &ocrEngine); 
   if(retCode != SUCCESS) 
      return retCode; 
   // Start the engine using default parameters 
   L_OcrEngine_Startup(ocrEngine, NULL, OCR_ADVANTAGE_RUNTIME_DIR); 
   // Add this image toan OCR page 
   L_OcrPage_FromBitmap(ocrEngine, &ocrPage, &bitmap, L_OcrBitmapSharingMode_AutoFree, NULL, NULL); 
   // Transfer ownership to the page 
   bitmap.Flags.Allocated = 0; 
   // Recognize this page 
   L_OcrPage_Recognize(ocrPage, NULL, NULL); 
   // Dump the characters to standard output 
   ocrPageCharacters.StructSize = sizeof(L_OcrPageCharacters); 
   L_OcrPage_GetRecognizedCharacters(ocrPage, &ocrPageCharacters); 
   L_UINT zoneCount = 0; 
   L_OcrPage_GetZoneCount(ocrPage, &zoneCount); 
   for(L_UINT zoneNum = 0; zoneNum < zoneCount; zoneNum++) 
   { 
      // Get the recognized words 
      L_OcrWords ocrWords = { 0 }; 
      ocrWords.StructSize = sizeof(L_OcrWords); 
      L_OcrPage_GetZoneWords(&ocrPageCharacters, zoneNum, &ocrWords); 
      std::wcout << L"Words in zone " << zoneNum << ":\n"; 
      for(L_UINT wordIndex = 0; wordIndex < ocrWords.WordCount; wordIndex++) 
      { 
         L_OcrWord ocrWord = ocrWords.Words[wordIndex]; 
         // Output word info 
         std::wcout << L"Word: " << ocrWord.Buffer << L", at (" 
         << ocrWord.Bounds.left << L", " << ocrWord.Bounds.top 
         << L", " << ocrWords.Words[wordIndex].Bounds.right << L", " 
         << ocrWord.Bounds.bottom << L"), characters index from " 
         << ocrWord.FirstCharacterIndex << L" to " 
         << ocrWord.LastCharacterIndex << std::endl; 
      } 
      // Get the data on the individual characters 
      L_OcrZoneCharacters* zoneChars = ocrPageCharacters.ZoneCharacters; 
      bool nextCharacterIsNewWord = true; 
      L_UINT charIndex = 0; 
      while(charIndex < zoneChars->CharacterCount) 
      { 
         // Get a specific character 
         L_OcrCharacter ocrCharacter = ocrPageCharacters.ZoneCharacters[zoneNum].Characters[charIndex]; 
         // Capitalize the first letter if this is a new word 
         if (nextCharacterIsNewWord) 
            ocrCharacter.Code = (L_WCHAR)toupper(ocrCharacter.Code); 
         // Output individual character information 
         std::wcout << L"Code: "             << ocrCharacter.Code 
         << L", Confidence: "     << ocrCharacter.Confidence 
         << L", WordIsCertain: "  << ocrCharacter.WordIsCertain 
         << L", Bounds: ("        << ocrCharacter.Bounds.left << L", " << ocrCharacter.Bounds.top << L", " 
         << ocrCharacter.Bounds.right << L", " << ocrCharacter.Bounds.bottom 
         << L") , Position: "       << ocrCharacter.Positions 
         << L", FontSize: "       << ocrCharacter.FontSize 
         << L", FontStyle: "      << ocrCharacter.FontStyles 
         << std::endl; 
         // If the charcater is bold, make it underline 
         if ((ocrCharacter.FontStyles & L_OcrCharacterFontStyles_Bold) == L_OcrCharacterFontStyles_Bold) 
         { 
            ocrCharacter.FontStyles |= L_OcrCharacterFontStyles_Italic; 
            ocrCharacter.FontStyles |= L_OcrCharacterFontStyles_Underline; 
         } 
         // Check if next character is the start of a new word 
         if ((ocrCharacter.Positions & L_OcrCharacterPositions_EndOfWord) == L_OcrCharacterPositions_EndOfWord || 
            (ocrCharacter.Positions & L_OcrCharacterPositions_EndOfLine) == L_OcrCharacterPositions_EndOfLine) 
         nextCharacterIsNewWord = true; 
         else 
            nextCharacterIsNewWord = false; 
         // Make change with our copy of data 
         ocrPageCharacters.ZoneCharacters[zoneNum].Characters[charIndex] = ocrCharacter; 
         // Go to the next character 
         charIndex++; 
      } 
      // For output spacing 
      std::wcout << std::endl; 
      // Free this now that we are done with it 
      L_OcrPage_FreeWords(&ocrWords); 
   } 
   // Update the engine with our character changes 
   L_OcrPage_SetRecognizedCharacters(ocrPage, &ocrPageCharacters); 
   // Release the data 
   L_OcrPage_FreePageCharacters(&ocrPageCharacters); 
   // Create an OCR document 
   L_OcrEngine_GetDocumentManager(ocrEngine, &ocrDocumentManager); 
   // Show the recognition results 
   // Set the PDF options to save as PDF/A text only 
   DOCWRTPDFOPTIONS pdfOptions; 
   pdfOptions.Options.uStructSize = sizeof(DOCWRTPDFOPTIONS); 
   L_OcrDocumentManager_GetFormatOptions(ocrDocumentManager, DOCUMENTFORMAT_PDF, &pdfOptions.Options); 
   // Set the specific PDF options we want 
   pdfOptions.FontEmbed = DOCWRTFONTEMBED_AUTO; 
   pdfOptions.bImageOverText = false; 
   pdfOptions.PdfProfile = DOCWRTPDFPROFILE_PDFA; 
   // Give the engine our updated PDF options 
   L_OcrDocumentManager_SetFormatOptions(ocrDocumentManager, DOCUMENTFORMAT_PDF, &pdfOptions.Options); 
   // Create an OCR document 
   L_OcrDocumentManager_CreateDocument(ocrDocumentManager, &ocrDocument, L_OcrCreateDocumentOptions_AutoDeleteFile, NULL); 
   // In Document File Mode, add OcrPage to OcrDocument after recognition 
   L_OcrDocument_AddPage(ocrDocument, ocrPage); 
   // Free this now that we are done with it 
   L_OcrPage_Destroy(ocrPage); 
   // Save the output 
   L_OcrDocument_Save(ocrDocument, MAKE_IMAGE_PATH(L_TEXT("MyImageWithTest.pdf")), DOCUMENTFORMAT_PDF, NULL, NULL); 
   // CLEANUP 
   if(bitmap.Flags.Allocated) 
      L_FreeBitmap(&bitmap); 
   // Destroy the document 
   L_OcrDocument_Destroy(ocrDocument); 
   // Shutdown the engine 
   L_OcrEngine_Destroy(ocrEngine); 
   // Open and check the result file, it should contain the following text 
   // "Normal Line" 
   // "Bold And Italic Line" 
   // "Monospaced Line" 
   // With the second line bold and underlined now 
   return SUCCESS; 
}