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ID: 13820, Digital Magnifying Glass

by Earl F. Glynn Email: efg2@efg2.com


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For Delphi, Version 3.0  to 4.0 1233 downloads
Copyright: Commercial use requires permission


Size: 233,537 bytes
Updated on Wed, 18 Aug 1999 00:00:00 GMT
Originally uploaded on Wed, 18 Aug 1999 00:00:00 GMT
SHA1 Hash: B4AA01BB6C0CB9CEFF649DDEE036F5DCE4316F9C
MD5 Hash: 5031A335D33BA47BC6A7C1B637457A4F

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Description
The Magnifier program demonstrates how to create a digital magnifying glass to enlarge a small selected area of an image. The selected area can be either a square or a circle.

For additional details, including a screen display of the circular magnifier, see the "Lab Report" at
http://www.efg2.com/Lab/ImageProcessing/Magnifier.htm

Keywords:
CopyMode, cmSrcCopy, cmSrcAnd, Bitmap Mask, CopyRect, Transparent, Draw, Ellipse, Rectangle, Invalidate, GetPixelFormatString, IsPaletteDevice, LoadGraphicsFile, Magnification Factor, BMP, JPG, WMF, EMF, GIF, WmEraseBkgnd, TIniFile, MulDiv, OpenPictureDialog, TPicture/TGraphic polymorphism

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