Declaration
property Dict: TIEDictionary;
Description
Contains a dictionary of additional properties.
The key "XMP" will contain a sub-dictionary parsed from XMP info.
Demo
| Demos\InputOutput\XMP\XMP.dpr |
Examples
// Load an SVG at double size
ImageEnView1.IO.Params.Dict.Clear();
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Scale', 2 );
ImageEnView1.IO.LoadFromFile( 'D:\SVG\Lion.svg' );
// Load an SVG at size 2000x1000px
ImageEnView1.IO.Params.Dict.Clear();
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Width', 2000 );
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Height', 1000 );
ImageEnView1.IO.LoadFromFile( 'D:\SVG\Lion.svg' );
// Load an SVG at size 2000px wide. Auto-calculate height
ImageEnView1.IO.Params.Dict.Clear();
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Width', 2000 );
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Height', 0 );
ImageEnView1.IO.LoadFromFile( 'D:\SVG\Lion.svg' );
// Load an SVG at size 1000px high. Auto-calculate width
ImageEnView1.IO.Params.Dict.Clear();
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Width', 0 );
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Height', 1000 );
ImageEnView1.IO.LoadFromFile( 'D:\SVG\Lion.svg' );
// Load an SVG at size up to 2000x1000px, but maintain the Aspect ratio
ImageEnView1.IO.Params.Dict.Clear();
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Width', 2000 );
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Height', 1000 );
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:AspectRatio', 1 );
ImageEnView1.IO.LoadFromFile( 'D:\SVG\Lion.svg' );
// Load an SVG at 200 dpi
ImageEnView1.IO.Params.Dict.Clear();
ImageEnView1.IO.Params.Dict.Insert( 'ImageMagick:Density', 200 );
ImageEnView1.IO.LoadFromFile( 'D:\SVG\Lion.svg' );
// Rasterize page number 5 of mybook.pdf at 200dpi
ImageEnView1.IO.Params.ImageIndex := 5;
ImageEnView1.IO.Params.Dict.Insert('ImageMagick:Density', 200);
ImageEnView1.IO.LoadFromFile('mybook.pdf');
// gets XMP doc id
docid := ImageEnView1.IO.Params.Dict.GetString('xapMM:DocumentID', true);
// Output all entries of dc:subject->rdf:Bag of JPEG XMP
{
Example XMP content:
<dc:subject>
<rdf:Bag>
<rdf:li>China</rdf:li>
<rdf:li>Jan 2008</rdf:li>
<rdf:li>Shanghai</rdf:li>
</rdf:Bag>
</dc:subject>
Output:
China
Jan 2008
Shanghai
}
var
xmpDict: TIEDictionary; // Dict contailing image XMP data
navDict: TIEDictionary; // Dict to navigate XML structure
list: TObjectList;
i: integer;
begin
ImageEnView1.IO.LoadFromFile( 'D:\XMP_Data_202112.JPG' );
// Get XMP
xmpDict := ImageEnView1.IO.Params.Dict.GetDictionary('XMP');
// Output all entries of dc:subject->rdf:Bag into "memo1"
navDict := xmpDict.GetDictionary('dc:subject', True);
navDict := navDict.GetDictionary('#content', false);
navDict := navDict.GetDictionary('rdf:Bag', false);
navDict := navDict.GetDictionary('#content', false);
list := navDict.GetList('rdf:li', false);
for i := 0 to list.Count - 1 do
begin
navDict := TIEDictionary(list[i]).GetDictionary('#content', false);
memo1.lines.add( navDict.GetString('#text', false) );
end;
end;