ImageEn, unit imageenio

TImageEnIO.StreamHeaders

TImageEnIO.StreamHeaders


Declaration

property StreamHeaders: boolean;


Description

If True, each SaveToStreamXXX method adds an additional special header as needed for multi-image streams.
When a special header is added, the images saved with SaveToStream*** aren't compatible with LoadFromFile*** methods.


Example

// Save ImageEnView1 and ImageEnView2 images in the file, images.dat
// Note: images.dat won't be loadable with LoadFromFileXXX methods
var
  fs: TFileStream;
Begin
  fs := TFileStream.Create('bmpimages.dat', fmCreate);
  ImageEnView1.IO.StreamHeaders := True;
  ImageEnView1.IO.SaveToStreamJPEG(fs);
  ImageEnView2.IO.StreamHeaders := True;
  ImageEnView2.IO.SaveToStreamJPEG(fs);
  fs.free;
End;

// Save a single image in image.jpg
// image.jpg is loadable with LoadFromFileXXX methods
var
  fs: TFileStream;
Begin
  fs := TFileStream.Create('image.jpg');
  ImageEnView1.IO.StreamHeaders := False;
  ImageEnView1.IO.SaveToFileJPEG(fs);
End;