Qa: letters 2 decimal convert

[Fire]

Hi Great Community!

Guys i`m in stuck.Because i don`t know how to convert letters to decimal which will give me result like below:

http://www.pctools.com/guides/registry/detail/1281/

A: 1
 B: 2
 C: 4
 D: 8
 E: 16
 F: 32
 G: 64
 H: 128
 I: 256
 J: 512
 K: 1024
 L: 2048
 M: 4096
 N: 8192
 O: 16384
 P: 32768
 Q: 65536
 R: 131072
 S: 262144
 T: 524288
 U: 1048576
 V: 2097152
 W: 4194304
 X: 8388608
 Y: 16777216
 Z: 33554432
 ALL: 67108863

I try many ways how to convert letters to decimal but as result i cannot figure it out.I mean my result is wrong.

Guys I need only right direction.Thanks

and

Thanks in advance again.

Edited June 21, 2010 by Fire

[Mat]

2^(Asc($sChar)-65)

[Malkey]

Here is another direction.

For $i = 0 To 25
    ConsoleWrite(ChrW($i + 65) & ": " & 2 ^ $i & @CRLF)
Next

ConsoleWrite("ALL: " & 2 ^ $i - 1 & @CRLF)
#cs
    A: 1
    B: 2
    C: 4
    D: 8
    E: 16
    F: 32
    G: 64
    H: 128
    I: 256
    J: 512
    K: 1024
    L: 2048
    M: 4096
    N: 8192
    O: 16384
    P: 32768
    Q: 65536
    R: 131072
    S: 262144
    T: 524288
    U: 1048576
    V: 2097152
    W: 4194304
    X: 8388608
    Y: 16777216
    Z: 33554432
    ALL: 67108863
#ce

[funkey]

ConsoleWrite(_Letter2Dec("z") & @CR)
ConsoleWrite(_Letter2Dec("A") & @CR)

Func _Letter2Dec($sLetter)
    $sLetter = StringLeft(StringUpper($sLetter), 1)
    If Not StringIsAlpha($sLetter) Then Return SetError(1)
    Local $iAsc = Asc($sLetter) - 65
    Return 2^$iAsc
EndFunc

[Fire]

Mat,Malkey,funkey Thanks so much Guys!

Solved.Thanks again.

Edited June 21, 2010 by Fire