Hi,
firstly a happy new year to you all and keep on rocking!
While reading the fpimage unit code I found some pieces I don't
understand and could not clear up reading the docs. Here we go:
<code>
TFPCustomImage = class(TPersistent)
[...]
public
[...]
property Extra [const key:string] : string read GetExtra write SetExtra;
property ExtraValue [index:integer] : string read GetExtraValue write
SetExtraValue;
property ExtraKey [index:integer] : string read GetExtraKey write
SetExtraKey;
procedure RemoveExtra (const key:string);
function ExtraCount : integer;
</code>
Whats that good for? Ist to tag images inside my own program or does it
handle image meta data like EXIF and stuff?
And at the end:
<code>
initialization
ImageHandlers := TImageHandlersManager.Create;
</code>
Looking at this class it seems to be sort of a type registry, maybe able
to detect type and name or instantiate the reader and writer classes.
How ist that to be used and do I need to care for?
TIA,
Marc
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