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QuestionMerging transparency gif to another image and making thumbnails on fly Pin
dencis11-Feb-06 20:00
dencis11-Feb-06 20:00 
I am working on a project where I need to upload a logo that can be used with different t-shirt styles, colors and the logo must be able to resize on fly and maintain transparency color.

-My original idea was to use aspimage by using either DoMerge or AddImageTransparent but aspimage won't let me load gif file
http://www.serverobjects.com/comp/Aspimage.htm

-then I decided to go with .png (by keeping t-shirt in background in the table) but png has some compatibility issue since IE doesn't support variable transparency or alpha channel (which means I have to specify only ONE transparency color to begin with)

-then I look for info about asp.net but it turned out that asp.net doesn't support transparency

-then I finally found this SevenObjects that let me Create Thumbnails & Maintain GIF Transparency
http://www.dnzone.com/showdetail.asp?NewsId=327&savePass=1&strUserID=denden&strPassword=4edz7c&Submit=Login&offset=0
but I couldn't find any documentation on how to use it.

so here are my questions
1) How do I create .gif or .png thumbnails on fly which maintain transparency color
2) Are there any components or solutions to merge transparency gif with different image?
2) Here is the best example of exactly how I need it --> http://www.comboutique.com/shop/t_shirt_minute.html
customer select the design and tshirt style then it dynamically display output which maintain transparency of design so it can merge with different tshirt (how to do this in asp?)

or any solution on how to acomplish this is great help and sorry about my poor english ^^
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