I need help - I can help - DrawText, DrawBox

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DrawText, DrawBox

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=3876
Printed Date: 20 Apr 24 at 11:08AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: DrawText, DrawBox

Posted By: PatVdv
Subject: DrawText, DrawBox
Date Posted: 13 Jan 21 at 8:59AM

Hi All,

I'm just trying to design a box under a text, for the value of the width it is correct, but I don't understand what's wrong with the height ?

Patrick

ie :

with aPdf do

begin

sTxt:='PROFORMA';

SetTextSize(30);

iWidth := GetTextWidth(sTxt);

iHeight:= GetTextAscent - GetTextDescent;

iY:=10;

iX:=130;

SetFillColor(0.88,0.88,0.88);

DrawBox(iX,iY,iWidth,iHeight,1);

SetTextColor(1,0.13,0.13);

DrawText(iX,(iY+iHeight),sTxt);

end;

Replies:

Posted By: Ingo
Date Posted: 13 Jan 21 at 7:37PM

Hi Patrick,

in the description for both functions (ascent/descent) you can read "...Returns the size of the selected font...". But i don't see that you've already selected a font.
Try SelectFont first before you try to do the settings for a font ;-)
https://www.debenu.com/docs/pdf_library_reference/SelectFont.php
Here you'll find a lot for the first start:
http://www.quickpdf.org/

Cheers and welcome here,
Ingo

-------------
Cheers,
Ingo

Posted By: PatVdv
Date Posted: 14 Jan 21 at 2:52PM

Thanks Ingo,

You are right, I didn't show it here, but the font was selected before. I'll go deep into the documentation anyway.

Patrick

Posted By: Ingo
Date Posted: 14 Jan 21 at 10:27PM

LastErrorCode after each function call let you see if the last call works or fails...

-------------
Cheers,
Ingo