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Get average color of image via Javascript
... is possible, but looking to write a script that would return the average hex or rgb value for an image. I know it can be done in AS but looking to do it in JavaScript.
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What is the best way to stop people hacking the PHP-based highscore table of a Flash game
... an encrypted token to the client at game startup, which might look like:
hex-encoding( AES(secret-key-stored-only-on-server, timestamp, user-id, random-number))
(You could also use a session cookie to the same effect).
The game code echoes this token back to the server with the high-score save....
Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding
...th/to/avrdude.conf -patmega328 -P/dev/usbport -U flash:w:/path/to/firmware.hex
A good way to get the correct command line to use is to copy it from the verbose output of the Arduino IDE output log when verbosity has been enabled.
When you get avrdude: stk500_recv(): programmer is not responding, ...
How do I convert Long to byte[] and back in java
...st be converted to long which does sign extension. A byte with value -128 (hex 0x80) will turn into a long with value -128 (hex 0xFFFF FFFF FFFF FF80). First after the conversion are the values or:ed together. Using bitwise-and protects against this by first converting the byte to an int and cutting...
Unicode character for “X” cancel / close?
...like i.e: in an :before or :after pseudo) simply use the escaped \ Unicode HEX value, like for example:
[class^="ico-"], [class*=" ico-"]{
font: normal 1em/1 Arial, sans-serif;
display: inline-block;
}
.ico-times:before{ content: "\2716"; }
.ico-check:before{ content: "\2714"; }
<i cla...
Dynamically change color to lighter or darker by percentage CSS (Javascript)
...other links, but with lighter color. Obviously I can just do simply by the hex code adding in the CSS file, but our site lets user decide what colors they want for their customized profile/site (like Twitter).
...
In C# what is the difference between ToUpper() and ToUpperInvariant()?
... var prefix = bytes.Length == 4 ? @"\U" : @"\u";
var hex = BitConverter.ToString(bytes.Reverse().ToArray()).Replace("-", string.Empty);
return $"{prefix}{hex}";
}
public override string ToString()
{
return $"{Character} ({EscapeS...
Validate a username and password against Active Directory?
...ntext error, data 773, v1db1"
The lexc.ServerErrorMessage data value is a hex representation of the Win32 Error Code. These are the same error codes which would be returned by otherwise invoking the Win32 LogonUser API call. The list below summarizes a range of common values with hex and decimal ...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的探讨。
Android应用的性能问题其实可以划分为几个大的模块的，而且都具有相对不错的优化调试技巧，下面我们就会依据一个项目常规开发的大类型来进行一些分析讲解。
PS：之前呆过一家初创医疗互联网公司，别提性能优...
When is CRC more appropriate to use than MD5/SHA1?
...a86af", what is 8 character long string. Btw, it is 32bit number stored in HEX format. For example, "sha256" has 256bits hash, again stored as HEX, what gives 64 character long string.
– Martin
Aug 6 '12 at 12:28
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