I'm stuck need help

abhiexx · #1 February 24th, 2002

Hi !
i am a novice programmer......trying to code a gnutella clone for my class project..
I am facing trouble with using the GUID in the header....
My problem is :-

a) As the cocreateguid function returns a GUID structure....how do i convert that into a byte array sos that i can send it on it's way....the UUidtostring ()
function is not working for me.....is causing an exception in the application code.

b)Could anyone also please...clarify the purpose the GUID serves and how do i hanlde it in my application.....

----Thanks help will be highly appreciated....

Joetella · #2 February 25th, 2002

Quote:

Originally posted by abhiexx
Hi !
i am a novice programmer......trying to code a gnutella clone for my class project..
I am facing trouble with using the GUID in the header....
My problem is :-

a) As the cocreateguid function returns a GUID structure....how do i convert that into a byte array sos that i can send it on it's way....the UUidtostring ()
function is not working for me.....is causing an exception in the application code.

b)Could anyone also please...clarify the purpose the GUID serves and how do i hanlde it in my application.....

----Thanks help will be highly appreciated....

Here is my Guid Code, a function which return a Byte array ..
note that you dont need to use CoCreateguid function!

Code:

Private Function Guid() As Byte()
    
   On Error GoTo HandleError
   
   Dim iPos As Integer
   Dim bTemp() As Byte
   ReDim bTemp(0 To 15)

' client guid
   Randomize
   For iPos = 0 To 14
      bTemp(iPos) = CByte((254 * Rnd + 1))
   Next iPos
   bTemp(7) = 255
   bTemp(15) = 0
   Guid = bTemp
   Exit Function
   
HandleError:
   LogError ("Guid")
   Resume Next
    
End Function

#3 February 25th, 2002

is this Basic?

Joetella · #4 February 25th, 2002

Yes it is.. Visual Basic

abhiexx · #5 March 1st, 2002

hi!
Thanks for posting the solution!...I am using VC++..but ur post gave me some new ideas..anyway for those who are using the GUID struct....i think....just copying the struct members into a byte array would suffice....using the wsprintf and a format string consisting of %x...this is pretty dumb....but i think it works...:-)

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