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Date Posted: 20:24:55 09/22/02 Sun
Author: Todd Cary
Subject: Re: Drop shadow
In reply to: Brian Lowe 's message, "Re: Drop shadow" on 18:36:06 09/22/02 Sun

I saw an example using another image library where Convolution is used, and I do not have enough background in image manipulation to know exactly what that is.


>What kind of drop shadow do you want? The easiest is
>to put TImageScrollBox into top left of a TPanel that
>is slightly bigger.
>Next easiest would be to put a gradient control to the
>right and bottom of the TImageScrollBox.
>Next would be to put 2 TImages to the right and bottom
>that contain a shadowed bitmap. Set it to transparent
>so whatever is underneath shows through the faded
>portion of the shadow.
>Finally, you could create a TImageScrollBox descendent
>that has an oversized canvas and draw the 3D shadow
>yourself. If you want to see code for drawing on a
>TBitmap in memory, download the source for THotButton
><a rel=nofollow target=_blank href="http://www.belleson.com/sourcecode/hotbutton.html">http://www.belleson.com/sourcecode/hotbutton.html</a>
>The code in procedure THotButton.MakeHotButton(..)
>does a very basic draw of white pixels at top and
>left, gray pixels at bottom and right.
>Good luck,
>Brian Lowe
>Belleson Corp
>>I would like to create a drop shadow around an image -
>>give the image a 3D look. How can this be done?
>>Many thanks.....

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