[fpc-pascal] Implementing AggPas with PtcGraph

[Stefan V. Pantazi]

How did you build/get freetype.dll? If it was built using Visual Studio, 
freetype.dll might have been linked against a newer C++ runtime such as 
msvcr71.dll that is not shipped with windows by default. You clearly 
need to deploy C++ runtime libs as well with your product.
You may benefit from such tool as a dependency walker 
(https://en.wikipedia.org/wiki/Dependency_Walker).
On linux you can just use ldd.

Hope this helps,

Stefan

On 06/05/2017 05:00 PM, James Richters wrote:
>> As for font support under Windows. Yes you can use GDI for font rendering, but I highly recommend using freetype.dll even under Windows.
>> It has more features than GDI font support and the quality is better too.
>
> Is it the fonts causing the dependency then?  I have freetype.dll included in the directory with my programs, do I need to include other files / dlls if I want them to run without installing anything?
>
> the programs I am getting the dependency  issue with are based on and including Graeme's original sample program Agg2DColsole.dpr ,  they use:
> Ptcgraph,
> Ptccrt,
> Sysutils,
> Fpimage,
> Fpwritepng,
> Agg_2d,
> Agg_Basics
>
>
> James
>
>
> -----Original Message-----
> From: fpc-pascal [mailto:fpc-pascal-bounces at lists.freepascal.org] On Behalf Of Graeme Geldenhuys
> Sent: Monday, June 05, 2017 2:25 PM
> To: fpc-pascal at lists.freepascal.org
> Subject: Re: [fpc-pascal] Implementing AggPas with PtcGraph
>
> On 2017-06-05 03:12, Stefan V. Pantazi wrote:
>> In my experience, the one dependency that AggPas has potential to fail
>> may be related to the freetype library. If you plan to run your app on
>> windows only, then you can turn freetype off and AggPas will happily
>> use windows font libraries. Search for the AGG2D_USE_FREETYPE define
>> and comment it out.
>
> Correct, though even font support is optional in AggPas. So if you don't render text via AggPas, it has zero dependency - everything is done in pure Object Pascal code.
>
> As for font support under Windows. Yes you can use GDI for font rendering, but I highly recommend using freetype.dll even under Windows.
> It has more features than GDI font support and the quality is better too.
>
> Regards,
>    Graeme
>
> --
> fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/
>
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-- 
_______________________________________________________________
Stefan V. Pantazi, MD, PhD
Professor, Health Informatics
School of Health & Life Sciences and Community Services
Conestoga College Institute of Technology and Advanced Learning
299 Doon Valley Drive
Kitchener, ON, Canada, N2G 4M4	
office:	1C23
phone:  (519) 748-5220 ext. 3950
email:  svpantazi at gmail.com
web:	https://sites.google.com/site/stefanvpantazi/ 		
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