Hex calculation problem!?

[user0_x_0]

Hello , sorry if can say this clearly , am new to forums and to autoit v3 to

I tried running the code bet the hex calculation is not correct, anybody help show where the error is and a fix??

console log-------------------

>"C:\Program Files (x86)\AutoIt3\SciTE\..\autoit3.exe" /ErrorStdOut "C:\Users\User0x0\Desktop\hex inverters.au3"    
Line No 2 - {6} FFFFF1 ~ 416FFFFFE0000000
Line No 4 - {6} 000000 ~ 416FFFFFE0000000
Line No 7 - {6} 000000 ~ 416FFFFFE0000000
Line No 8 - {6} 000000 ~ 416FFFFFE0000000
Line No 9 - {6} 000000 ~ 416FFFFFE0000000
Line No 10 - {6} 000000 ~ 416FFFFFE0000000
Line No 11 - {6} 000000 ~ 416FFFFFE0000000
Line No 12 - {6} 000000 ~ 416FFFFFE0000000

colors.xml

hex inverters.au3

[FrancescoDiMuro]

@user0_x_0
What kind of calculation are you attempting to do?

[Malkey]

It appears you are trying to subtract a 32 bit colour in 0xAARRGGBB hex format away from fully opaque white, 0xFFFFFFFF.
The 0xAARRGGBB hex colour format is made up of 4 channels - Alpha (transparency), Red, Green, and Blue. Each channel is 8 bits (0 to 0xFF or 0 to 255).   
0x00RRGGBB colour is fully transparent (AA is zero) so it does not mater what the RGB channels values are.
0xFF000000 is fully opaque black. Note, there are no RGB colour values, which makes black, the darkest colour. 
0xFFFFFFFF is fully opaque white. Note, all the RGB colour values are maxed out, making white the lightest colour.  
And, R=G=B values gives different shades of grey from black to white.

Note: If any fully opaque ARGB colour is inverted, the A channel of 0xFF will become 0x00 and the colour will become completely invisible.

#NoTrayIcon
#include <File.au3>
#include <Array.au3>
#include <String.au3>

$file = FileReadToArray("colors.xml")
$e = _ArrayAdd($file, " ")
_ArrayDisplay($file, "Total is " & $e)

For $i = 0 To $e - 1
    If (StringInStr($file[$i], '">#') <> 0) Then
        $col = _StringBetween($file[$i], '">#', '</color>')
        ; _ArrayDisplay($col)
        $col = StringRight($col[0], 8)
        ConsoleWrite($col & @TAB)
        $col = "0x" & StringUpper($col)
        ConsoleWrite($col & @TAB)
        ConsoleWrite("Line No " & $i & " - {" & (StringLen($col) - 2) * 4 & " bit} " & $col & " = 0xFFFFFFFF - " & "0x" & Hex(0xFFFFFFFF - Int($col), 8) & @CRLF)
    EndIf
Next
;MsgBox(0, "Test", Hex(0xFFFFFF - 0x54a4cd, 6))

 

Edited February 14, 2019 by Malkey

[user0_x_0]

20 minutes ago, Malkey said:

It appears you are trying to subtract a 32 bit colour in 0xAARRGGBB hex format away from fully opaque white, 0xFFFFFFFF.
The 0xAARRGGBB hex colour format is made up of 4 channels - Alpha (transparency), Red, Green, and Blue. Each channel is 8 bits (0 to 0xFF or 0 to 255).   
0x00RRGGBB colour is fully transparent (AA is zero) so it does not mater what the RGB channels values are.
0xFF000000 is fully opaque black. Note, there are no RGB colour values, which makes black, the darkest colour. 
0xFFFFFFFF is fully opaque white. Note, all the RGB colour values are maxed out, making white the lightest colour.  
And, R=G=B values gives different shades of grey from black to white.

Note: If any fully opaque ARGB colour is inverted, the A channel of 0xFF will become 0x00 and the colour will become completely invisible.

#NoTrayIcon
#include <File.au3>
#include <Array.au3>
#include <String.au3>

$file = FileReadToArray("colors.xml")
$e = _ArrayAdd($file, " ")
_ArrayDisplay($file, "Total is " & $e)

For $i = 0 To $e - 1
    If (StringInStr($file[$i], '">#') <> 0) Then
        $col = _StringBetween($file[$i], '">#', '</color>')
        ; _ArrayDisplay($col)
        $col = StringRight($col[0], 8)
        ConsoleWrite($col & @TAB)
        $col = "0x" & StringUpper($col)
        ConsoleWrite($col & @TAB)
        ConsoleWrite("Line No " & $i & " - {" & (StringLen($col) - 2) * 4 & " bit} " & $col & " = 0xFFFFFFFF - " & "0x" & Hex(0xFFFFFFFF - Int($col), 8) & @CRLF)
    EndIf
Next
;MsgBox(0, "Test", Hex(0xFFFFFF - 0x54a4cd, 6))

 

oh I see , so u r saying I must consider the alpha channel?
can I let be as it is and invert the RGB only

[Malkey]

@user0_x_0

Looking at your attached "colors.xml" file, there are references to varying  degrees of  transparency  together with the word Alpha.  

It really depends on what the objective of inverting the colours is.

As a general rule it would be more practical  to invert only on the RGB channels.

This example keeps the original Alpha channel and combines it to the invert of the RGB channels.

#NoTrayIcon
#include <File.au3>
#include <Array.au3>
#include <String.au3>

$file = FileReadToArray("colors.xml")
$e = _ArrayAdd($file, " ")
;_ArrayDisplay($file, "Total is " & $e)

For $i = 0 To $e - 1
    If (StringInStr($file[$i], '">#') <> 0) Then
        $col = _StringBetween($file[$i], '">#', '</color>')
        ; _ArrayDisplay($col)
        $Alp = StringUpper(StringLeft($col[0], 2))
        ConsoleWrite($Alp & @TAB)
        $RGB = StringUpper(StringRight($col[0], 6))
        ConsoleWrite($RGB & @TAB)
        ConsoleWrite("Line No " & $i & " ~ Alpha &  (0xFFFFFF - 0x" & $RGB & ") = 0x" & $Alp & Hex(0xFFFFFF - Int("0x" & $RGB), 6) & @CRLF)
    EndIf
Next
;MsgBox(0, "Test", Hex(0xFFFFFF - 0x54a4cd, 6))

 

Edited February 14, 2019 by Malkey