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C++Builder example for TIEDictionary?

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EricNat

USA
37 Posts

Posted - Oct 07 2022 : 09:21:40

I am trying to set the maximum compression on a WEBP save using the ImageMagick plugin. Having trouble getting this Delphi code converted to C++Builder. Specifically, I can't seem to find a Create() method for TIEDictionary. I tried creating it with "new" as well but that didn't work either.

ImageEnView1.IO.LoadFromFile( 'D:\Image.png' );
imDict := TIEDictionary.Create(); // HAVING TROUBLE CONVERTING THIS LINE TO C++
imDict.Insert( 'webp:lossless', true );
imDict.Insert( 'webp:method', 0 );
imDict.Insert( 'webp:auto-filter', true );
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick', imDict );
ImageEnView1.IO.SaveToFile( 'D:\Image_out.webp' );

Thanks,
Eric

xequte

38608 Posts

Posted - Oct 07 2022 : 19:31:47

Hi Eric

This did not work?

imDict = new TIEDictionary;

Nigel
Xequte Software
www.imageen.com

EricNat

USA
37 Posts

Posted - Oct 09 2022 : 14:38:59

no, I get an error:

[bcc32 Error] Main.cpp(144): E2285 Could not find a match for 'TIEDictionary::TIEDictionary()'

When I try that.

Thanks.

xequte

38608 Posts

Posted - Oct 10 2022 : 17:19:38

Hi Eric

It looks like the C++ definition for TIEDictionary doesn't recognize Delphi default parameters, so they must be specified manually:

imDict = new TIEDictionary(103, false);

Note: hyieutils.hpp must be included ( #include "hyieutils.hpp")

We'll improve this for the next release.

Nigel
Xequte Software
www.imageen.com

EricNat

USA
37 Posts

Posted - Oct 10 2022 : 22:06:47

Thanks! That did the trick!

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