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How to make transparent backgroud in Java

Posted on 1998-06-18
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Last Modified: 2010-04-16
Now, I want to make the background color of my applet to be transparent with the background color of my HTML file. That means if the background color of my applet is blue while that of my HTML is red. I want there is on blue rectangular seen on web page. How can I do this? Of course, I can select the same color, but I want to have another alternative due to some reasons.
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Question by:hcyu
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4 Comments
 

Expert Comment

by:baruche
ID: 1223374
To the best of my knowledge tranparency was only introduced at JDK 1.1 and even than only when you inherit from Component or Container, since Applet is derived from Panel (AFAIR) you cannot get tranparency from an Applet.
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Expert Comment

by:fontaine
ID: 1223375
Do you mean that the background color of the Web page should impose the background
color of the applet or that the background color of the applet should impose the background
color of the HTML?
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Accepted Solution

by:
fontaine earned 100 total points
ID: 1223376
Use the same background as the browser (if it is the inverse that you wanted, please tell
me).

In the applet tag, add a parameter:

PARAM NAME="bgColor" VALUE="B8B5AE"
(where VALUE is the same hexadecimal value as the HTML color value)

// in the JAVA init method :
Color bgcolor = new Color(Integer.valueOf(getParameter("bgColor"), 16).intValue());
setBackground(bgcolor);
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Expert Comment

by:fontaine
ID: 1223377
"Pure" Blue : 0000FF
"Pure" Red:  FF0000
"Pure" Green: 00FF00
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