Find words in document and highlight with annotations

#1 Posted : Tuesday, October 18, 2005 6:06:28 AM(UTC)

Otis

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The attached VB.NET example will allow you to load an image and perform OCR on it. You can then specify a word you wish to search for within the image. If the word is found, a highlight annotation will be displayed over the word.

File Attachment(s):

Find word and highlight.zip (24kb) downloaded 46 time(s).

#2 Posted : Thursday, September 13, 2007 10:31:57 AM(UTC)

drjones

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Hi:
Is there a VC++ version of this code? Any pointers would be useful. Thanks. Anand

#3 Posted : Friday, September 14, 2007 6:10:48 AM(UTC)

jigar

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Hello,

Unfortunately, we don't have one available in VC++, but the code flow is the same. You just have to use the corresponding functions available in the API library. Our C++ Class Library is very close to this. If you have anything specific that you have trouble with we can help you out with that.

Thank You

#4 Posted : Friday, September 14, 2007 6:51:29 AM(UTC)

drjones

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Thanks, I could figure it out. But when I output the recognized word to a file, it prints out hex (even if I use the %s qualifier). Am i missing anything obvious? Thanks

#5 Posted : Friday, September 14, 2007 7:26:56 AM(UTC)

jigar

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Hello,

Can you post the code snippet which gets a word from the recognized page and prints it to the console/file. I'm thinking it's because it might be returning in Unicode char set, but I'm not 100% sure on it.

#6 Posted : Friday, September 14, 2007 7:53:04 AM(UTC)

drjones

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yes it is returning the unicode charset. I tried:
myfile << pRecogWords[i].szWord; // (prints unicode)
myfile << printf("%s",pRecogWords[i].szWord); // (prints a single digit)

and similar combinations.

Thanks

#7 Posted : Friday, September 14, 2007 10:01:54 AM(UTC)

jigar

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Yes, the szWord is of type L_WCHAR which is the same as WCHAR. If you want to conver it to a LPCSTR you can use the WideCharToMultiByte() function in windows.h. Documentation for it is here: http://msdn2.microsoft.c...us/library/ms776420.aspx

#8 Posted : Thursday, September 27, 2007 5:16:30 AM(UTC)

GregR

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This demo has been ported to version 15 in VB.NET 2005.

File Attachment(s):

NET - V15 - Find Word and Highlight.zip (10kb) downloaded 30 time(s).

#9 Posted : Thursday, September 27, 2007 5:17:02 AM(UTC)

GregR

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This demo has been ported to version 15 with the C++ Class Library

File Attachment(s):

CLIB - V15 - Find Word and Highlight VC6.zip (51kb) downloaded 24 time(s).

#10 Posted : Tuesday, June 30, 2009 11:01:07 AM(UTC)

GregR

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For 16.0, 16.5, & 17.0 versions, please visit http://support.leadtools...rums/24558/ShowPost.aspx

For 17.5, please vist http://support.leadtools...9405/ShowPost.aspx#39405


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Find words in document and highlight with annotations