property AttachedImageEnIO: TComponent;
You can attach the dialog to a TImageEnIO
. When it is attached the user can click the "Advanced" button
in the save dialog to read/write the Params
(which are only updated if the user clicks "OK").
If no ImageEn component is attached to the TSaveImageEnDialog it will function as a standard save dialog with an image preview, but without an "Advanced" button.