Problems with FSUIPC-Connection

[Toppa80]

Hi Folks,

I have a problem with the connection to the FSUIPC.

First I had a button. With a click on it, I started the connection to the FSUIPC, when the flusi was already running.

Now I want to start my program first, in which I have a Timer, which tries to connect to FSUIPC. The flusi is not yet running.

When I start the flusi now, it doesn´t find the FSUIPC. Do I start the program after flusi is running, it connects.

What is the problem for that?

Here is the Timer:

Private Sub StbyTimerForFsuipc_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StbyTimerForFsuipc.Tick

        Try
            ' Attempt to open a connection to FSUIPC (running on any version of Flight Sim)
            FSUIPCConnection.Open()

            Me.ToolStripStatusLabel1.ForeColor = Color.Green
            Me.ToolStripStatusLabel1.Text = "Connected to Flight Simulator"
            Me.bxtConnectedToFlusi.Text = 1

            Me.StbyTimerForFsuipc.Enabled = False

        Catch ex As Exception
            ' Badness occurred - show the error message            
            Me.ToolStripStatusLabel1.ForeColor = Color.Red
            Me.ToolStripStatusLabel1.Text = "No Connection to Flight Simulator"

        End Try

    End Sub

Thank you for help,

Tobias

[VulcanB2]

Hi,

My connect code reads something like this:

    Private Sub cmdConnect_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdConnect.Click

        If f.FSUIPC_Open(FSUIPCInterop.Fsuipc.SIM_FS2K4, FSUIPC_ERR) Then
            txtStatus.Text = "Open!"
        Else
            txtStatus.Text = "STATUS: " & GetFSUIPCErr(FSUIPC_ERR)
        End If

    End Sub

GetFSUIPCErr reads something like:

    Private Function GetFSUIPCErr(ByVal FSUIPC_ERR As Integer) As String

        Select Case FSUIPC_ERR
            Case FSUIPC_ERR_ATOM
                GetFSUIPCErr = "Failed to create Atom for mapping filename"

            Case FSUIPC_ERR_BUFOVERFLOW
                GetFSUIPCErr = "Buffer Overflow"

            Case FSUIPC_ERR_DATA
                GetFSUIPCErr = "IPC request contains bad data"

            Case FSUIPC_ERR_MAP
                GetFSUIPCErr = "Failed to create a file mapping object"

            Case FSUIPC_ERR_NODATA
                GetFSUIPCErr = "Call cannot execute: no requests accumulated"

            Case FSUIPC_ERR_NOFS
                GetFSUIPCErr = "Cannot link to FSUIPC or WideClient"

            Case FSUIPC_ERR_NOTOPEN
                GetFSUIPCErr = "Call cannot execute, link not Open"

            Case FSUIPC_ERR_OK
                GetFSUIPCErr = "OK!"

            Case FSUIPC_ERR_OPEN
                GetFSUIPCErr = "Attempt to Open when already Open"

            Case FSUIPC_ERR_REGMSG
                GetFSUIPCErr = "Failed to Register common message with Windows"

            Case FSUIPC_ERR_RUNNING
                GetFSUIPCErr = "Maybe running on WideClient, but FS not running on Server, or wrong FSUIPC"

            Case FSUIPC_ERR_SENDMSG
                GetFSUIPCErr = "IPC sendmessage failed all retries"

            Case FSUIPC_ERR_SIZE
                GetFSUIPCErr = "Size Error"

            Case FSUIPC_ERR_TIMEOUT
                GetFSUIPCErr = "IPC timed out all retries"

            Case FSUIPC_ERR_VERSION
                GetFSUIPCErr = "Incorrect version of FSUIPC, or not FSUIPC"

            Case FSUIPC_ERR_VIEW
                GetFSUIPCErr = "Failed to open a view to the file map"

            Case FSUIPC_ERR_WRONGFS
                GetFSUIPCErr = "Sim is not version requested"

            Case Else
                GetFSUIPCErr = "No Error"

        End Select

    End Function

All the above code is because I found the Try...Catch didn't work.

If you want to detect that FS is running then connect, you're going to need to set a flag somewhere that says the connection is open already, so it doesn't perpetually try opening an already opened connction.

e.g.

    Private Sub cmdConnect_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdConnect.Click

        If FSUIPC_CONN_OPEN Then Exit Sub

        If f.FSUIPC_Open(FSUIPCInterop.Fsuipc.SIM_FS2K4, FSUIPC_ERR) Then
            txtStatus.Text = "Open!"
            FSUIPC_CONN_OPEN = True
        Else
            txtStatus.Text = "STATUS: " & GetFSUIPCErr(FSUIPC_ERR)
        End If

    End Sub

You could even get it so the code disables the connect timer when a connection is made, but you'd need a way to detect the connection failed, and either re-connect or generate an error saying why it can't reconnect.

Best regards,

Robin.

[Toppa80]

Thank you Robin for your help.

I didn´t really used your code, but you brought me to an other idea.

The problem was, that once the FSUIPCConnection.Open() was used, I have to close before next use...

See the code:

Private Sub StbyTimerForFsuipc_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StbyTimerForFsuipc.Tick

        If FSUIPC_CONN_OPEN Then Exit Sub

        Try
            FSUIPCConnection.Open()
            FSUIPC_CONN_OPEN = True

            Me.StbyTimerForFsuipc.Enabled = False

            Me.ToolStripStatusLabel1.ForeColor = Color.Green
            Me.ToolStripStatusLabel1.Text = "Connected to Flight Simulator"
            Me.bxtConnectedToFlusi.Text = 1

        Catch ex As Exception
            Me.ToolStripStatusLabel1.ForeColor = Color.Orange
            Me.ToolStripStatusLabel1.Text = "Waiting for Flight Simulator"
        End Try


        If FSUIPC_CONN_OPEN Then Exit Sub
        FSUIPCConnection.Close()

    End Sub

Greetings,

Tobias