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Matt
 Post subject: VB.Net
PostPosted: Mon Apr 13, 2009 10:49 pm 
I've started to convert my source to VB.Net and I've hit a snag.

With the byte array packet system Dugor designed, he uses a function called "GetAddress" and then calls it with the addressof for each sub that handles a packet.

In VB6, this is a perfect method to use. In VB.Net, it bitches, saying:

Code:
'AddressOf' expression cannot be converted to 'Long' because 'Long' is not a delegate type.


Here's an example of how AddressOf is used:
Code:
HandleDataSub(modEnumerations.ClientPackets.CGetClasses) = GetAddress(AddressOf HandleGetClasses)


And here's the GetAddress function:

Code:
    Public Function GetAddress(ByVal FunAddr As Long) As Long
        GetAddress = FunAddr
    End Function


Anyone here know anything about VB.Net? I'm using VB2008..

Once I figure this out, I can keep moving, but I'm at a loss.

Thanks guys. :D
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Dragoons Master
 Post subject: Re: VB.Net
PostPosted: Tue Apr 14, 2009 1:32 am 
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I don't know much VB.Net, but I'm good with C#, so what I can see from this:
'AddressOf' expression cannot be converted to 'Long' because 'Long' is not a delegate type.
is:
Vb.Net does not handle function pointers like VB6, probably it is like it's done in C# (since everything is just .Net). Delegate types are probably needed here.
Create a delegate type: "Delegate Sub MyDelSub()"
Then inside the function create an instance of this type : "Dim del As MyDelSub"
Now you can use the AddressOf function: "del = New MyDelSub(AddressOf YOURFUNCTIONNAME)"
Then to invoke, just use the Invoke function xD: "del.Invoke()"

Good luck!

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Jacob
 Post subject: Re: VB.Net
PostPosted: Tue Apr 14, 2009 1:42 am 
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You are correct!

I just looked into it for him.

Code:
Public Delegate Sub HandleDataDelegate(ByVal Index As Long, ByRef Data() As Byte)


Code:
Public HandleDataSub(ClientPackets.CMSG_COUNT) As HandleDataDelegate


Code:
HandleDataSub(modEnumerations.ClientPackets.CGetClasses) = AddressOf HandleGetClasses


Code:
HandleDataSub(MsgType).Invoke(Index, Buffer.ReadBytes(Buffer.Length - 3))
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Matt
 Post subject: Re: VB.Net
PostPosted: Tue Apr 14, 2009 1:49 am 
Sweet. Two people who kinda know wtf they're talkin' about. :D

Since Jacob is helping me with a lot of this stuff, after I get my source converted to VB.Net, I will be converting whatever version of MS4 is released at that point, as well.

Gotta give back to the community. :D
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Labmonkey
 Post subject: Re: VB.Net
PostPosted: Tue Apr 14, 2009 2:07 am 
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and i will make it 3d!

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Doomy
 Post subject: Re: VB.Net
PostPosted: Tue Apr 14, 2009 2:43 am 
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Labmonkey wrote:
and i will make it 3d!

and i will use it

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Coke
 Post subject: Re: VB.Net
PostPosted: Wed Apr 15, 2009 12:46 am 
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Wow, Doomy made me chuckle o.0
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James
 Post subject: Re: VB.Net
PostPosted: Wed Apr 15, 2009 7:57 am 
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Can someone explain what the issue was? Why did it have to be delegated? I've used defined functions before as well, so I'm just unsure as to why this one had to be different.
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Jacob
 Post subject: Re: VB.Net
PostPosted: Wed Apr 15, 2009 11:01 am 
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The VB6 code was using an array of longs that held the memory address of functions. Then it used CallWindowProc to call the function in the array.
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