[FSUIPC Client DLL for .NET - Version 2.0]

Hi Paul,

Thank you very much for the explanation. I am using the DLL in SBuilder (scenery creation programme) and I get an error in the situation that I will try to explain:

My programme has an option to show the FS aircraft on the Sbuilder display. When the user sets this option and until he disconnects the option, the programme displays the aircraft position at regular intervals (set by a timer). This is the code for the timer event:

Try

FSUIPCConnection.Process()

AircraftLatitude = CDbl(LatAircraft.Value)

AircraftLatitude = AircraftLatitude * 90.0 / (10001750.0 * 65536.0 * 65536.0)

AircraftLongitude = CDbl(LonAircraft.Value)

AircraftLongitude = AircraftLongitude * 360.0 / (65536.0 * 65536.0 * 65536.0 * 65536.0)

Catch ex As Exception

MsgBox("Error communicating with FSUIPC!", MsgBoxResult.Ok)

AircraftVIEW = False

ShowAircraftMenuItem.Checked = False

Me.Timer2.Enabled = False

Exit Sub

End Try

UpdateDisplay()

This runs fine except if the user closes FS. Then SBuilder (in debug mode) reports an error in the DLL or it crashes in normal operation. I could start the shown routine with:

Try

FSUIPCConnection.Close()

FSUIPCConnection.Open()

FSUIPCConnection.Process()

...

but this does not look good as the timer interval can be very short (100ms or so depending on the settings of the user of my programme).

Many thanks for any tip,

Regards,

Luis

[FSUIPC Client DLL for .NET - Version 2.0]

Hi,

I can not read aircraft position using this DLL. Could anyone be so kind to post the code to get the latitude (or longitude) of the aircraft?

Luis

[Writing Latitude and Longitude]

Hello,

There was a bug in my implementation :mrgreen: . For the benefict of other users here is a correction:

Public Function fsUIPCSetLatitude(ByVal Latitude As Double) As Integer

In the fsUIPCSetLatitude function the variable Latitude can not be passed by reference (by reference is default in VB). The crash was in my application because the function modified the Latitude.

Regards and many thanks to Pete for providing an application key for SBuilder, Luis

[Writing Latitude and Longitude]

Hello,

I wonder if any VBasic programmer can help me in writing the code for my applycation to set the aircraft position through FSUIPC. I got a "developer key" from Pete but debugging is very difficult as I need to run a full compiled version for FSUIPC to accept my application's requests.

My application is scenery generation programme and I only need to read and to write the aircraft lat/lon. I followed the examples in the FSUIPC SDK and I can read the aircraft position. But when I try to set the aircraft position there is an overflow and my application crshes.

Following is the routines to read (which works fine) and to write (which does not) the latitude. Any comment would be most apreciated.

Regards, Luis

Public Function fsUIPCGetLatitude(Latitude As Double) As Integer

Dim Fake64Bit As Currency

Dim dwResult As Long

fsUIPCGetLatitude = 0

If FSUIPC_Read(&H560, 8, VarPtr(Fake64Bit), dwResult) Then

If FSUIPC_Process(dwResult) Then

Latitude = Fake64Bit * 10000#

Latitude = Latitude * 90# / (10001750# * 65536# * 65536#)

Else

fsUIPCGetLatitude = 1

End If

Else

fsUIPCGetLatitude = 1

End If

End Function

Public Function fsUIPCSetLatitude(Latitude As Double) As Integer

Dim Fake64Bit As Currency

Dim dwResult As Long

fsUIPCSetLatitude = 0

Latitude = (Latitude / 90#) * (10001750# * 65536# * 65536#)

Fake64Bit = Latitude / 10000#

If FSUIPC_Write(&H560, 8, VarPtr(Fake64Bit), dwResult) Then

If FSUIPC_Process(dwResult) Then

Else

fsUIPCSetLatitude = 1

End If

Else

fsUIPCSetLatitude = 1

End If

End Function

[SBuilder Programme]

Hello Pete,

I was not sufficient clear in my message. I am very sorry. I am the author of the programme. I could not find your email to ask for a key. In fact I am using another module to read Aircraft position (Latitude and Longitude). Then I display the aircraft in my programme console. The other funcionality that I would like to implement is to force the FS Aircraft to go the area that my programme is working (this funcionality does not work with the module that I am using).

In conclusion I would like to know if I could integrate your software in my programme. I only need the functions:

set aircraft lat

set aircraft lon

read aircraft lat

read aircraft lon

and if possible

set aircraft altitude

read aircraft altitude

Kind Regards, Luis

[SBuilder Programme]

Dear Pete,

SBuilder is a FS2004 scenery design programme which is available as freeware (whith a small restriction thought).

http://www.ptsim.com/forum/forum.asp?FORUM_ID=18

I would like to know if I could use your module.

Kind Regards, Luis