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Converting bmp to jpeg

Posted on 2000-02-19
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Last Modified: 2013-11-19
Is it possible to convert a bmp to a jpeg with delphi?  If so, can I have some code please.

I'm new to delphi so please be gentle (I need a descriptive answer).  I've been using vb for some time, but I find it lacking in some areas.  So far, from what I've seen delphi kicks butt.  The problem of course is, I don't know how to code in delphi-pascel.
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Question by:fibdev
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inthe earned 200 total points
ID: 2538816
Hi Fibdrv,
there is example about half way down this page:

http://www.efg2.com/lab/library/delphi/graphics/FileFormatsAndConversion.htm#Conversions 

+ many other useful conversions also ;-)


here is examaple from above page :

PROCEDURE ConvertBMPtoJPG (CONST BMPName: STRING; JPGName: STRING);
  VAR
    Bitmap: TBitmap;
    JPEG : TJPEGImage;
BEGIN
  Bitmap := TBitmap.Create;
  JPEG := TJPEGImage.Create;
  TRY
    Bitmap.LoadFromFile(BMPName);
    JPEG.CompressionQuality := 80;
    JPEG.Assign(Bitmap);
    JPEG.SaveToFile(JPGName);
  FINALLY
    Bitmap.Free;
    JPEG.Free
  END
END {ConvertBMPtoJPG};  

Converting a BMP to a JPEG and Vice Versa (TI4528D)
http://www.borland.com/devsupport/delphi/ti/TI4528D.html 

http://www.efg2.com/lab/Graphics/BMPJPG.htm 
efg's BMPJPG Lab Report. Interactively convert BMPs to JPGs or vice versa. Nearly all the JPEG compession options cn be controlled via the user interface, including image quality and progressive encoding and display.

efg's Command-line utility for batch conversion of BMPs to JPGs: BMPtoJPG.PAS
http://www.efg2.com/lab/library/delphi/graphics/BMPtoJPG.PAS.txt 

Regards Barry


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LVL 3

Author Comment

by:fibdev
ID: 2538878
I found the answer to this in the help files, but it would not be in good form to deny you the points.

Thank you
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LVL 17

Expert Comment

by:inthe
ID: 2538922
cheers :-)

ps.
dont forget to look at the efg site it really good for graphics and files stuff.
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