I need help - I can help - text extraction

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text extraction

Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=3201
Printed Date: 07 Nov 25 at 8:54PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: text extraction

Posted By: kubeos
Subject: text extraction
Date Posted: 10 Nov 15 at 4:20PM

cannot see why:

QP.SetOrigin(1);

QP.SetTextExtractionArea( 0, 0, QP.PageWidth(), QP.PageHeight());

QP.GetPageText( 8); // <- ok, some text

works as expected, but

QP.SetOrigin(0);

QP.SetTextExtractionArea( 0, 0, QP.PageWidth(), QP.PageHeight());

QP.GetPageText( 8); // <- returns empty string

will not ?

Any help welcome.

Replies:

Posted By: tfrost
Date Posted: 11 Nov 15 at 9:59AM

With set origin 0, the origin of measurement is the bottom left corner. So the vertical co-ordinate of the top of the area (which you must supply as the second parameter in SetTextExtractionArea) should be -QP.PageHeight().