Base64enc() / Base64dec() - Base64 encoder / decoder - Scripts and Functions

Required OS -> XP or greater.
Versions by Polyethene / Laszlo are already available in forum.
I have just re-wrapped the following pair to support unicode AHK.

[color=#FF0000]Base64enc([/color] ByRef OutData, ByRef InData, InDataLen [color=#FF0000])[/color] { ; by SKAN
 DllCall( "Crypt32.dll\CryptBinaryToString" ( A_IsUnicode ? "W" : "A" )
        , UInt,&InData, UInt,InDataLen, UInt,1, UInt,0, UIntP,TChars, "CDECL Int" )
 VarSetCapacity( OutData, Req := TChars * ( A_IsUnicode ? 2 : 1 ) )
 DllCall( "Crypt32.dll\CryptBinaryToString" ( A_IsUnicode ? "W" : "A" )
        , UInt,&InData, UInt,InDataLen, UInt,1, Str,OutData, UIntP,Req, "CDECL Int" )
Return TChars
}

[color=#FF0000]Base64dec([/color] ByRef OutData, ByRef InData [color=#FF0000])[/color] { ; by SKAN
 DllCall( "Crypt32.dll\CryptStringToBinary" ( A_IsUnicode ? "W" : "A" ), UInt,&InData
        , UInt,StrLen(InData), UInt,1, UInt,0, UIntP,Bytes, Int,0, Int,0, "CDECL Int" )
 VarSetCapacity( OutData, Req := Bytes * ( A_IsUnicode ? 2 : 1 ) )
 DllCall( "Crypt32.dll\CryptStringToBinary" ( A_IsUnicode ? "W" : "A" ), UInt,&InData
        , UInt,StrLen(InData), UInt,1, Str,OutData, UIntP,Req, Int,0, Int,0, "CDECL Int" )
Return Bytes
}
[color=#FFFFFF]; Encoding / Decoding[/color]

Example for DECODE ( Try this first! This script creates ahk.png used by the other example )

SetWorkingDir, %A_ScriptDir%
GoSub, LoadPNGDATA
Bytes := Base64Dec( BIN, PNGDATA )
VarZ_Save( BIN, Bytes, "ahk.png" )
VarSetcapacity( PNGDATA, 0 )

Gui, Margin, 20, 20
Gui, Add, Picture,, ahk.png
Gui, Show
Return                                                 ; // end of auto-execute section //


GuiClose:
 ExitApp

Base64dec( ByRef OutData, ByRef InData ) {
 DllCall( "Crypt32.dll\CryptStringToBinary" ( A_IsUnicode ? "W" : "A" ), UInt,&InData
        , UInt,StrLen(InData), UInt,1, UInt,0, UIntP,Bytes, Int,0, Int,0, "CDECL Int" )
 VarSetCapacity( OutData, Req := Bytes * ( A_IsUnicode ? 2 : 1 ) )
 DllCall( "Crypt32.dll\CryptStringToBinary" ( A_IsUnicode ? "W" : "A" ), UInt,&InData
        , UInt,StrLen(InData), UInt,1, Str,OutData, UIntP,Req, Int,0, Int,0, "CDECL Int" )
Return Bytes
}

VarZ_Save( ByRef Data, DataSize, TrgFile ) { ; By SKAN
[color=#008040]; http://www.autohotkey.com/community/viewtopic.php?t=45559[/color]
 hFile :=  DllCall( "_lcreat", ( A_IsUnicode ? "AStr" : "Str" ),TrgFile, UInt,0 )
 IfLess, hFile, 1, Return "", ErrorLevel := 1
 nBytes := DllCall( "_lwrite", UInt,hFile, UInt,&Data, UInt,DataSize, UInt )
 DllCall( "_lclose", UInt,hFile )
Return nBytes
}

LoadPNGDATA:
PNGData=
(
[color=#808080]iVBORw0KGgoAAAANSUhEUgAAAPAAAABOCAYAAAAelZuXAAAMvElEQVR42uydUW8U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mLT9FfZOfTmN6dTbsjGQBBhlATvPAzQ5ZisiL42IAI/Mff11XCqV4hs3bsSFXQfe
EoAOfrK/4DhSCpMB8AuVYaL2x8LeyclJAHYiPef68w0JZUoOoRnnQ5lmySvlCyXe
9evX48Ib+/YUDv96aBv8ZCQJjSMj5qD4Bc0QFm5+ABzZs5/heX5+XjZiB8YFdgjQ
WI8RQCIsKF+YRLh27VpMuQdABz9phHQKwXF8vNqEQVp+Eo4lNIZs6+BnA8R06m3C
AVkza3mH9qTZYsaPCAcpX4gB0MFPRiAEDpHjoPghcIgMWc/FzwRIfY3p9IKEETjA
hie9HgwkwGMG0ADo4Cf7CbEjZL1B8aMSCpUh8hLh5xSYFekFCRMHQTc8GEiiog3Q
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8ZEk/FTgzTxWgVVgFVgFVoG/F5hZQBXYX2D4qcD+AsNPBVaBVWAVWAVWgVXgHSsw
T8MQFXiLwLdu3TIAOvjJ9nBUgf35ERXY4OcSOIp0BPYXWPhJVOB2UvDTETihwJtv
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ASD34lTgHgJznWYBtPmpwJbAifipwCKwxU8FTi/w6z/9iQrsLzD8VGBvgW1+LKjA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N23+BVPU8iQMAXyj0cgvNDt0WgCz8mIPSLlnjCB9+EkajdWQOFLBDIKfMuzPr/Nh
CMxKvJ1LekH+Mlwg0Bg1OOeugQmTdOPj41YD7MNPwggSLsf0/BiFg2To5icCDw0d
BiArSRkjYbYu59DYD6DknK0IwHPnzn0P8K23d1G9EAc/9kt4CihMjun5Bc+wKz8R
mAUAco9JAG6BSO/Hc815hMZkHefYL/DoCpA4+BkNMEiO6fn9t72zaXEaCANwEQRd
MYh4Ucoe9uxBEFZbxJO17LIrXoRFals8eFAR/0YPJfYHlPbUQy8u1UsppfRP7KoL
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wYV46IgvmsjjoUaLw8nzZDKxgwge7mL8xSHBmqx5TN5f9h3G+5MTWG6kI5CVpBYk
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R/+4v3/AgGoKHQJB/am/pfmTW0nM9l6pvKjy9jMECmyYANQmUcj+HSLWT/K4pfny
vVar7+Wu3rxBoUOgIP4Gg8EP9af+kvBH/7darVn+wtN6eltb2wUj+XA0Gp0IZ2Vk
PB4vAvb1r8wlTZp3vV7vYGd3954EYAT1p/6W4o/FHhFCLWiGBD7rdrtHDO3ikh0H
V+zz8ulzJGfuS/5UWwbfbYbDoQPbnhN7e2q+n+12+0u9Xn/Kqx2ZQQJnNra/Tqfz
1fRVfqk/9TcnfyfG3zfXX3gJooGX84VC4XG5XH7v+x+OGX4FzWbTodFoJM2p+/V9
34bf5k6r1ZLPx6VS6V2xWHwUTOe5FrhSf+ovPf6s2tAz3KJhbXho4KyvGF4aXgW8
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QGJWopnCzluEOPWn/lbHn9SGDkjNIm5eZVF/6i+V/n4D8vgs7OivT6kAAAAASUVO
RK5CYII=[/color]
)
Return

Example for ENCODE

SetWorkingDir, %A_ScriptDir%

File := "ahk.png"
FileGetSize, Size, %File%
FileRead, Bin, *c %File%
Base64enc( PNGDATA, Bin, Size )
MsgBox % Clipboard := PNGDATA

Return                                                 ; // end of auto-execute section //

Base64enc( ByRef OutData, ByRef InData, InDataLen ) {
 DllCall( "Crypt32.dll\CryptBinaryToString" ( A_IsUnicode ? "W" : "A" )
        , UInt,&InData, UInt,InDataLen, UInt,1, UInt,0, UIntP,TChars, "CDECL Int" )
 VarSetCapacity( OutData, Req := TChars * ( A_IsUnicode ? 2 : 1 ) )
 DllCall( "Crypt32.dll\CryptBinaryToString" ( A_IsUnicode ? "W" : "A" )
        , UInt,&InData, UInt,InDataLen, UInt,1, Str,OutData, UIntP,Req, "CDECL Int" )
Return TChars
}

Base64enc() / Base64dec() - Base64 encoder / decoder

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