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Date Posted: 17:23:51 06/13/01 Wed
Author: Ron Link
Subject: Tiff Compression

I'm trying the Envision Image Lib Demo version 1.1 with Delphi 5 and want to open a bmp and then save it as a compressed tif. My saved tif is the same size as the original bmp and therfore must not be compressing correctly. I've replaced the EnTifGr.dcu in the Envision / D5 directory with the updated version from the Envision website as mentioned in similar posted messages. Can you point me in the right direction?

Here's my code:

procedure TForm1.Button1Click(Sender: TObject);
var
TifGraphic : TTiffGraphic;
begin
TifGraphic := TTiffGraphic.Create;
TifGraphic.Compression := tcGroup3_1d;
try
ImageScrollBox1.FileName := 'c:\windows\desktop\ron.bmp';
TifGraphic.Assign(ImageScrollBox1.Graphic);
TifGraphic.SaveToFile('c:\windows\desktop\ron.tif');
ImageScrollBox1.FileName := 'c:\windows\desktop\ron.tif';
ImageScrollBox1.Redraw(true);
finally
TifGraphic.Free;
end;
end;


Thanks,
Ron Link

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