I need a function! Please!

Cableguy

Expert
Licensed User
Longtime User
Hi guys, I need a favour in the form of a funtion...
Something like

RGB2Hex(R,G,B)

Wich would return the fixed 6 digit Hex color value (#RRGGBB), Including the "#".

PLEASE, I am stuck with this for my ExcelWriter Advanced Demo!
 
P

Pachuquin

Member
Licensed User
Longtime User
I have found this code in Internet:

B4X: 
Thanks for sharing your code. Just made it more portable: 


Code:

Public Module cColor 

   Public Function GetHexColor(ByVal R As Integer, ByVal G As Integer, ByVal B As Integer) 

       Dim sR As String = "FF" 
       Dim sG As String = "FF" 
       Dim sB As String = "FF" 

       Dim hR As String = Microsoft.VisualBasic.Hex(R) 

       If hR.Length = 1 Then 
           sR = "0" & hR 
       Else 
           sR = hR 
       End If 

       Dim hG As String = Microsoft.VisualBasic.Hex(G) 

       If Len(hG) = 1 Then 
           sG = "0" & hG 
       Else 
           sG = hG 
       End If 

       Dim hB As String = Microsoft.VisualBasic.Hex(B) 

       If Len(hB) = 1 Then 
           sB = "0" & hB 
       Else 
           sB = hB 
       End If 

       Return "#" & sR & sG & sB 

   End Function 

End Module 



Cheers, McoreD.
 

Cableguy

Expert
Licensed User
Longtime User
Pachuquin said:
I have found this code in Internet:
Click to expand...

Thanks but the problem is this funtion in Not possible as is...
Dim hR As String = Microsoft.VisualBasic.Hex(R)
Click to expand...

There is NO such thing as an HEX keyword in B4PPc.
But I think I may have come to a working solution...!!!:sign0060:
 

Cableguy

Expert
Licensed User
Longtime User
For anyone interested in this, here is my RGB2Hex convertion sub

B4X: 
in Globals:

Dim H(6)


Sub RGB2Hex(RRR,GGG,BBB)
H(0)=Int(RRR/16)
H(1)=RRR-(H(0)*16)
If H(0)>9 Then
   If H(0)=10 Then H(0)="A"
   If H(0)=11 Then H(0)="B"
   If H(0)=12 Then H(0)="C"
   If H(0)=13 Then H(0)="D"
   If H(0)=14 Then H(0)="E"
   If H(0)=15 Then H(0)="F"
End If
If H(1)>9 Then
   If H(1)=10 Then H(1)="A"
   If H(1)=11 Then H(1)="B"
   If H(1)=12 Then H(1)="C"
   If H(1)=13 Then H(1)="D"
   If H(1)=14 Then H(1)="E"
   If H(1)=15 Then H(1)="F"
End If
H(2)=Int(GGG/16)
H(3)=GGG-(H(2)*16)
If H(2)>9 Then
   If H(2)=10 Then H(2)="A"
   If H(2)=11 Then H(2)="B"
   If H(2)=12 Then H(2)="C"
   If H(2)=13 Then H(2)="D"
   If H(2)=14 Then H(2)="E"
   If H(2)=15 Then H(2)="F"
End If
If H(3)>9 Then
   If H(3)=10 Then H(3)="A"
   If H(3)=11 Then H(3)="B"
   If H(3)=12 Then H(3)="C"
   If H(3)=13 Then H(3)="D"
   If H(3)=14 Then H(3)="E"
   If H(3)=15 Then H(3)="F"
End If
H(4)=Int(GGG/16)
H(5)=GGG-(H(4)*16)
If H(4)>9 Then
   If H(4)=10 Then H(4)="A"
   If H(4)=11 Then H(4)="B"
   If H(4)=12 Then H(4)="C"
   If H(4)=13 Then H(4)="D"
   If H(4)=14 Then H(4)="E"
   If H(4)=15 Then H(4)="F"
End If
If H(5)>9 Then
   If H(5)=10 Then H(5)="A"
   If H(5)=11 Then H(5)="B"
   If H(5)=12 Then H(5)="C"
   If H(5)=13 Then H(5)="D"
   If H(5)=14 Then H(5)="E"
   If H(5)=15 Then H(5)="F"
End If
C=H(0)&H(1)&H(2)&H(3)&H(4)&H(5)
Return C
End Sub
 

klaus

Expert
Licensed User
Longtime User
Hi Paulo,
You could also do it that way:
B4X: 
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[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]End [/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]If[/COLOR][/SIZE][/FONT]
[SIZE=2][FONT=Courier New][COLOR=#0000ff]If[/COLOR][/FONT][/SIZE][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]5[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])>[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]9 [/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]Then[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]  H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]5[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])=[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]Chr[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]55[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]+H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]5[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]))[/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]End [/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]If[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT]
[FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]C=H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]0[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])&H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]1[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])&H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]2[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])&H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]3[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])&H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]4[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])&H([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]5[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2])[/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]Return[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] C[/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]End Sub[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT]

Best regards.
 
M

Monsterman22

Member
Pardon me interfering the conversation of experts but after paying with this code
I don't see the problem - it returns the values you need

Sub Button1_Click
R = TxtR.Text
G = TxtG.Text
B = TxtB.Text
RGB2Hex(R,G,B)
C = RGB2Hex(R,G,B)
Msgbox(C)
End Sub
 

Cableguy

Expert
Licensed User
Longtime User

Of course it does!
I am known to make silly questions and then answer them before anyone else....It's my thing I guess...
I was puzzled wth the Hex convertion, so I asked in the forum for some help, but couldn't lay still, so I got myself to work...
The result was my RGB2Hex sub...
Klaus "only" sugested a more efective way of assigning the letters to values above 9.
I hope this ends-up helping someone else other than me!
 

specci48

Well-Known Member
Licensed User
Longtime User
Cableguy said:
There is NO such thing as an HEX keyword in B4PPc.
Click to expand...
Just as a small addition - Agrahams bitwise library provides such wonderful features:

DecToHex does exactly the same as Microsoft.VisualBasic.Hex



specci48
 

Cableguy

Expert
Licensed User
Longtime User
specci48 said:
Just as a small addition - Agrahams bitwise library provides such wonderful features:

DecToHex does exactly the same as Microsoft.VisualBasic.Hex



specci48
Click to expand...

Thanks Specci48...
But as always, when it comes to general use modules or subs, I try Not to depend on Extra Dll, that non-registred user can't access...
This way, I hope, a small thing like this sub, or the non-existence or it, may be a determinant decision maker.
 

specci48

Well-Known Member
Licensed User
Longtime User
Cableguy said:
But as always, when it comes to general use modules or subs, I try Not to depend on Extra Dll, that non-registred user can't access...
Click to expand...
I agree fully with your approach :sign0098:

Nevertheless I considered it necessary to comment the statement "There is NO such thing as an HEX keyword in B4PPc" because there is one! And often some users are looking for a feature that is already available but they do not remind all the functions spread over the big ammount of additional dll's.


specci48
 

klaus

Expert
Licensed User
Longtime User
@Monsterman22
I don't see the problem - it returns the values you need
Click to expand...
For us there was no problem either, just 2 ways of solving the question !
And with specci48's solution there is a 3rd one. This shows that there are always different posibilities to solve a given problem.

Best regards.
 
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