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Aro2220

How do I manipulate strings in Autoit?

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Aro2220

I'm trying to distinguish between two colors (a silvery color and a redish color) that are on a gradient (i can't have an exact color code, just a range). The problem is the decimal code is within the same range (1.3-1.5 mil for both).

I was thinking to distinguish them I could Hex the color code and then isolate the two hex characters for red (00AABBCC -- the AA would be for red) and then compare them together.

However, I don't know how to do string manipulations on autoit. Is there a way to turn the hex code 00AABBCC to a string and then run a function that returns the 3rd and 4th character?

Then I can convert the letters to their values (ie: F = 15 or 16 or whatever it is, etc) and do a simple comparison.

I'm sure autoit can do this since it seems to be able to do everything and anything. Can anyone direct me to the functions that would help me?

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omikron48

Global $hexval = "00112233"
MsgBox(0x2000, "Hex Value", StringMid($hexval, 3, 2)

There's a reason string manipulation functions start with String*. Look it up in the help file.

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jchd

You probably need to convert individual RGB components into integers, then follow hints from that post to determine where that pixel lies in the color cube.


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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