converting hex value to decimal value

i have a problem, in my app. i have to convert decimal to hex (no problem with hex(variable)) but i also want to do the opposite. I want to convert a hex value into a decimal value and i have not found any way to do it... help me..

p.s: i use vb-pro 3
njacquesAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JohanlCommented:
Hi Jacques,

Create a module file, insert two functions :

Public Function HexToDec(n)
Dim nLen
Dim i
Dim ndec

ndec = 0
nLen = Len(n)

For i = nLen - 1 To 0 Step -1
   
    ndec = ndec + (16 ^ i) * GetDecValue(UCase(Mid(n, nLen - i, 1)))
Next
HexToDec = ndec
End Function


Public Function GetDecValue(n)
Dim RetValue

Select Case n
    Case "F"
        RetValue = 15
    Case "E"
        RetValue = 14
    Case "D"
        RetValue = 13
    Case "C"
        RetValue = 12
    Case "B"
        RetValue = 11
    Case "A"
        RetValue = 10
    Case Else
        RetValue = n
End Select
GetDecValue = RetValue
End Function

You can use the converting like :

idec=hextodec("FFFF")
msgbox idec

Regards
Johan Loos
jloos@glo.be

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
njacquesAuthor Commented:
I cannot get you function to reply... I have placed it inside a module file (module1.bas) and the two function are contained into the pull down menu. so here is a part of my code..

If Len(text4.Text) < 6 Then
MsgBox ("Please enter a 6 digit hexadecimal number (RRGGBB)")
Exit Sub
End If

Dim rouge As String
Dim vert As String
Dim bleu As String
                 
rouge = UCase$(Left(text4.Text, 2))
vert = UCase$(Right(Left(text4.Text, 4), 2))
bleu = UCase$(Right(text4.Text, 2))

rougedec = HexToDec("rouge")

vertdec = HexToDec(vert)

bleudec = HexToDec(bleu)

label1.Caption = rougedec
label2.Caption = vertdec
label3.Caption = bleudec

hscroll1.Value = Val(rougedec)
hscroll2.Value = Val(vertdec)
hscroll3.Value = Val(bleudec)

the user enters a 6 digit string and the app split the rr-gg-bb so that they can be converted separatly. when the app get to you function call, the labels get blank... help me (am i using your function right) could my code cause this?

help me
0
JohanlCommented:
rougedec=hextodec(rouge) and NOT rougedec=hextodec("rouge")

I've copied your code for testing and works fine.

Let know if it works now
Johan
0
njacquesAuthor Commented:
i found out that val(&hff)
will do the job so o only got to do this

toconvert$ = "&h" + rouge
decimal = val(toconvert$)

and it converts, save a lot of time and coding

thanks anyway

bye

0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic Classic

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.