public string Recognize()
{
bool InSameThread;
int res;
InSameThread = false; //perform OCR in non-blocking mode
//InSameThread = true; //uncomment to perform OCR from this thread (GUI will be freezed)
//perform OCR itself
if (InSameThread)
{
res = NsOCR.Img_OCR(ImgObj, TNSOCR.OCRSTEP_ZONING, TNSOCR.OCRSTEP_LAST, TNSOCR.OCRFLAG_NONE);
}
else
{
//do it in non-blocking mode and then wait for result
res = NsOCR.Img_OCR(ImgObj, TNSOCR.OCRSTEP_ZONING, TNSOCR.OCRSTEP_LAST, TNSOCR.OCRFLAG_THREAD);
if (res > TNSOCR.ERROR_FIRST)
{
ShowError("Ocr_OcrImg(1)", res);
return(string.Empty);
}
res = TNSOCR.ERROR_PENDING;
while (res == TNSOCR.ERROR_PENDING)
{
Application.DoEvents();
res = NsOCR.Img_OCR(ImgObj, 0, 0, TNSOCR.OCRFLAG_GETRESULT);
}
}
if (res > TNSOCR.ERROR_FIRST)
{
if (res == TNSOCR.ERROR_OPERATIONCANCELLED)
{
System.Windows.Forms.MessageBox.Show("Operation was cancelled.");
}
else
{
ShowError("Img_OCR", res);
return(string.Empty);
}
}
int flags = false ? TNSOCR.FMT_EXACTCOPY : TNSOCR.FMT_EDITCOPY;
string txt;
NsOCR.Img_GetImgText(ImgObj, out txt, flags);
return(txt);
}