How use mouse draw a text select area on a PDF?

Hi All,
I am developing a small vb.net program to allow user select a area on PDF and extract the text.
I know some code below can extract text
RectAry.Left = 0
RectAry.right = rect.x
RectAry.bottom = 630
RectAry.Top = 703
txt = gPDDoc.CreateTextSelect(lngPage, RectAry)
My problem is how to know those four position value by looking at PDF.
Advanced achivement is how to let customer draw a box on that demanding area and my program pickup those four values.
If you could give me a code snippet, I am really appricate your time.
thank you

Thanks, Leonard. I am following your instrcution and making progress now.
But I had another small issue. It is regarding the coordinate value.
I tried to use arobat's "CORP" function to get the top, bottom, left, right (Because this is the only way I know to get coordinate values). Then set into select rectange parameters. I found if I put the CORP to close the text, the select rectange cannot get the text from the area.
But my CORP area is definitely include all texts and still leave a small margin to the word. If i want to get the text, I have to change the parameters a little bit and enlarge the area by a few points. Then It works.
I want to know if Acrobat SDK require a minmum margin to selected text?

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Thanks & Regards RAJENDRAN M

Hi Everyone,
I have created simple Desktop app in that I trying to generate PDF file from Datagridview...when I click on ExportPDf button Pdf file is generation successfully but the issue is in that pdf whatever the images has present in datagridview that images
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Does any one can tell me how to generate the PDF file along with images.
Here is my code:
private void btnexportPDF_Click(object sender, EventArgs e)
int ApplicationNameSize = 15;
int datesize = 12;
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Thanks & Regards RAJENDRAN M
Hello,
Since this issue is mainly related to iTextSharp which belongs to third-party, I would recommend you consider posting this issue on its support website to get help.
Maybe the following forum will help.
http://support.itextpdf.com/forum/26
Regards,
Carl
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