Rhysa

August 9, 2006

I have to say a purpose built module for .Net like this has been long overdue. Its great to see that someone who really knowns their stuff has put together a great module for the community. Its going to make coding for FSUIPC much more efficient. As developer of a few small addon's I'm happy to say I can discard the old methods and will be using this module from now on.

So thanks, and keep up the good work!

:D :D :D

May 9, 2006

I had a similar problem, and the solution I use can be found here http://mathforum.org/library/drmath/view/54386.html.

I use the matrix method down the bottom of the page, it works great for simple polygons.

November 7, 2005

Its actually possible in vb. I managed to connect to a FS2002 session as an observer. It took a little while to figure out the C SDK but its possible. However, I lost interest and can no longer find the code.

April 27, 2005

I had this problem too trying to read an Unsigned Int32 in VB.Net. So I too added another Get method that looked like this:

    Overloads Function FSUIPC_Get(ByRef Token As Integer, ByRef Result As UInt32) As Boolean
        Dim Size As Integer = 8    ' 8 bytes in a Double
        Dim InBuf(8) As Byte
        Dim i As Integer
        If (Token &lt; 0) Or (Token &gt; IPC_BUFFER_SIZE - (4 + Size)) Then 'Token out of range
            Result = Convert.ToUInt32(0)
            FSUIPC_Get = False
            Exit Function
        End If
        Result = BitConverter.ToUInt32(IPC, Token + 4)
        If IPCdr(Token) Then
            IPCdr(Token) = False
            FSUIPC_Get = True
        Else    ' If data ready flag not set, function returns FALSE and value found
            FSUIPC_Get = False
        End If
    End Function

Now the only lines that I had to chage was

Overloads Function FSUIPC_Get(ByRef Token As Integer, ByRef Result As UInt32) As Boolean

Result = BitConverter.ToUInt32(IPC, Token + 4)

Now C# and Vb.net are pretty similar and the only Get method in my code that uses Marshal.Copy is the string handler.

It seems the VB.net and C# sdks are very different.

April 20, 2005

I also develop in vb.Net and made a *few* apps in VB. It does take a while for .net apps to load, but this is mostly due to the Just In Time compiler I believe. Anyhow I was a bit worred about performance loss, but there doesn't seem to be much if any.

March 25, 2005

Its easy. Once you have connected to read stuff just call these functions:

FSUIPC_Read(offset, size, token, result)
FSUIPC_Process(result)
FSUIPC_Get(token, value)

Offset (ie &H2342) and size are from the SDK and relate to the variable you are trying to read. Value is the actual final value. You need a different token for each variable you want to read.

Multi-reads:

FSUIPC_Read(offset1, size1, token1, result)
FSUIPC_Read(offset2, size2, token2, result)
FSUIPC_Process(result)
FSUIPC_Get(token1, value1)
FSUIPC_Get(token2, value2)

And writes are simply:

FSUIPC_Write(offset, value, token, result)
FSUIPC_Process(result)

Email if you want my .Net dll.

MOST important, remember to declare your variables as the same data type as specified in the SDK. ie if it says integer with length 2 then use int16 data type.

BONUS FUNCTION ( :D :D )

To register your app with FSUIPC

Dim token As Integer
Dim bytecode() As Byte
Dim a As New System.Text.ASCIIEncoding

'Insert your key in this line
bytecode = a.GetBytes("A4729AOCNPVU")

FSUIPC_Write(&amp;H8001, bytecode.Length, bytecode, token, dwresult)

'if Process returns true then success else failed to register
If FSUIPC_Process(dwresult) = True Then
 '...success code
Else
 'failure
End If

March 25, 2005

Ive made a .Net dll that you can use. There were some errors I think in the SDK which I cleaned up and now it works fine. Ive used in a few programs, including 3Wire.

Email me and Ill send it over.

Also see here for a simple intro - http://forums.simflight.com/viewtopic.p258#218258

January 4, 2005

Much appreciated Pete :D

January 4, 2005

It would be better if I can map them directly, but I'd need to see them changing for that. How do I do that?

The wing fold is similar to the tailhook funtion - press a key and it animates. By default there is no key assigned,you have to set this up. Then you need an aircraft that uses it, Daisuke Yamamoto's F/A-18E Superhornet (http://flightinfo.ens.ne.jp/FS_KBT/dai.htm) has wing folding.

How quickly would they change and be needed to be checked. If I have to read them procedurally I don't want to have to do it on every frame if I can avoid it.

I would only need to know if they are fully folded, or unfolded. The rate of folding varies per aircraft and is specified in the aircraft.cfg.

ie:

[folding_wings]
wing_fold_system_type=4                       ;0=None
fold_rates=0.12,0.11                          ;Percent per second

Its not a quick change, it could be read every second, there is no need for the position to be read at every interval.

January 3, 2005

Pete is it possible to get any of these from FS:

- Tailhook available, ie configured in aircraft.cfg

- Wing fold position?

It would be handy to have this information for my program.

Also I found another reason VB.NET is not a good language for interfacing with FS, there is no native signed byte data type. Can work around it by doing:

If val &gt;= 128 Then
  newval = -(255 - Value + 1)

But it still caused a few hours of frustration :evil: Good news is this type is in .NET v2.0

December 10, 2004

Ive released my first add on for FS, 3Wire Aircraft Carrier Simulator. This version features:

- Launch and recover any aircraft aboard aircraft carriers

- Launch holdback

- Adjustable forces

- Optional require hook down

- Cable holdback, raise the hook before taxiing!

- Optional steam effect included

- 8 page operating handbook

- Ready to use with default and ArrCab carriers

- Cable Zone Assistant, makes creating zones easy

Its freeware, you can grap it at AVSIM and Aussim.com.au. Big thanks to Pete for FSUIPC, for giving me a key over a year ago (took some time but its here :D ) and for helping out with a few problems.

November 10, 2004

Yes its a bit dodgy when you cant even perform basic math on unsigned integers, such as divide, I had to convert to double first! Oh well its all sorted :lol:

November 10, 2004

Ok i got it working finally. As you said the value is unsigned, and represents the number of 2^32 parts. Anyway was continually reading negative numbers, and soon found out that the VB.NET SDK does not have the capability to handle unsigned numbers. Anyway I added some code which I wil post here for anyone else who ever runs into such a problem.

Overloads Function FSUIPC_Get(ByRef Token As Integer, ByRef Result As UInt32) As Boolean
        Dim Size As Integer = 8    ' 8 bytes in a Double
        Dim InBuf(8) As Byte
        Dim i As Integer
        If (Token &lt; 0) Or (Token &gt; IPC_BUFFER_SIZE - (4 + Size)) Then 'Token out of range
            Result = Convert.ToUInt32(0) 'This line changed
            FSUIPC_Get = False
            Exit Function
        End If
        Result = BitConverter.ToUInt32(IPC, Token + 4)
        If IPCdr(Token) Then
            IPCdr(Token) = False
            FSUIPC_Get = True
        Else    ' If data ready flag not set, function returns FALSE and value found
            FSUIPC_Get = False
        End If
End Function

The change is:

Result = BitConverter.ToUInt32(IPC, Token + 4)

Which converts to unsigned 32bit integer. You may have to do a conversion back to double or signed integer in your code to perform any calculations.

Hope this helps someone.

November 5, 2004

Ah, I didnt see it that way but now you have explained its all clear.

Thanks

November 5, 2004

Im having trouble getting the fractional part of the altitude at offset 0570. I can read the unit part at 0574, however im unsure of how to convert the fractional part at 0570. At the moment ive tried dividing by 10^9 then adding to the unit part. This gives an approximate value. But when I write to the fractional value and try to multiply by 10^9 I get an overflow (VB.NET).

How do I handle the fractional part?

September 12, 2003

ah yes now I see it from that point of view, my suggestion seems silly. Once again thanks for your fine work.

September 12, 2003

I am relatively new to programming with FSUIPC. With the new keys scheme, I have found there is little opportunity for someone to learn and play around with FSUIPC.

If its possible I think it would be great to have some kind of "dev" keys that allowed an application to access FSUIPC for a short time after the build date. Im thinking something where you have a generic key where the company name is, say, "Dev" and has an expiry date to prevent misuse, requiring a change of key periodically. But make it so that the application can only access FSUIPC for 24 hours after the last modification date of the exe. Therefore it would require the application to be rebuilt and therefore resetting the 24 hour period. Therefore in theory it could not be distributed and only useful to a developer. Then when the application was ready to be released an application for a proper key could be made.

This is only a suggestion, and it may (most likely) have flaws, so take it for what u will.

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Rhysa

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FSUIPC Client DLL for .NET - Version 2.0

Determining if the FS Aircraft lies Inside a Specific Poly

Radar Contact

Data Conversion Problem

VB.Net Basic Code

request for sample application in VB.NET

VB.Net Basic Code

New data

New data

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3Wire Released

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