andydeforest

April 17, 2020

Hi John,

Yes, mouse look is what I was referring to.

I tested FSUICPC6 in P3Dv4 and could not reproduce the behavior, so it must be something with v5. Thanks for the tip!

Andrew

April 16, 2020

Hello,

I have successfully installed FSUIPC6 into P5D, and all my axes are working as they did in P3Dv4. One thing that is bothering me, though, is I can't get the middle mouse view panning to work like it with previous iterations. It's much more sluggish, the vertical mouse controls are inverted (moving the mouse up pans the view down and vice versa), and I have to move the mouse back to the center of the screen to stop panning in whatever direction I was going.

I have Advanced Mouse Controls disabled, and when I disable the middle mouse view panning in FSUIPC, the middle mouse does not respond to anything, so I'm assuming there are no conflicting inputs.

Is this this expected behavior in FSUIPC6?

Andrew

May 20, 2016

Hi Paul,

Thanks for all the help. I completely removed the previously-opened FSUIPCConnection from the other form and it seems to have solved the issue, so it looks like there was some overlap between the two connections causing issues.

Thanks again,

Andrew

May 20, 2016

Paul,

Thanks for the insight, that's exactly what's happening. I'm going to completely rework the logic tonight and see if that fixes anything before I bother you with my code. In the mean time, what is the proper way to check and make sure FSUIPC (and FSX/P3D) is still running each time updateInfoTimerTick() fires? I'm trying to make my program robust enough so that if FSX/P3D crashed, I can pause the app and reconnect once the simulator is repoened.

May 19, 2016

I've found that 20 minutes isn't entirely accurate. Last night, I was trying to reproduce the error and my app ran fine for an hour before finally crashing. Today it took 10 minutes. So it's kind of all over the place. Anyway, here is the info you requested Paul:

{FSUIPC.StatsProcess}
    BytesRead: 8.0
    bytesRead: 8.0
    bytesWritten: 0.0
    BytesWritten: 0.0
    fsuipcMemoryFileSizeBytes: 40.0
    FsuipcMemoryFileSizeBytes: 40.0
    groupsProcessed: {string[1]}
    GroupsProcessed: {string[1]}
    GroupsProcessedString: "~SystemOffsets~"
    OffsetsCount: 2.0
    offsetsCount: 2.0
    offsetsReadCount: 2.0
    OffsetsReadCount: 2.0
    OffsetsWriteCount: 0.0
    offsetsWriteCount: 0.0
    TimeForIPC: 22.0012
    timeForIPC: 22.0012
    TimeForProcessCall: 22.0012
    timeForProcessCall: 22.0012

May 19, 2016

Hi Paul,

Here's the stack trace:

System.AccessViolationException was unhandled
  HResult=-2147467261
  Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
  Source=mscorlib
  StackTrace:
       at System.Runtime.InteropServices.Marshal.CopyToNative(Object source, Int32 startIndex, IntPtr destination, Int32 length)
       at System.Runtime.InteropServices.Marshal.Copy(Int32[] source, Int32 startIndex, IntPtr destination, Int32 length)
       at FSUIPC.FSUIPCConnection.Process(Byte ClassInstance, IEnumerable`1 GroupNames) in C:\Dev\FsuipcClient\fsuipcClient\fsuipcClient\fsuipcConnection.cs:line 777
       at FSUIPC.FSUIPCConnection.Process(Byte ClassInstance, String GroupName) in C:\Dev\FsuipcClient\fsuipcClient\fsuipcClient\fsuipcConnection.cs:line 597
       at FSUIPC.FSUIPCConnection.Process() in C:\Dev\FsuipcClient\fsuipcClient\fsuipcClient\fsuipcConnection.cs:line 558
       at IntelliCARS.FlightForm.updateInfoTimerTick(Object sender, EventArgs e) in e:\DropBox\c#\IntelliCARS\IntelliCARS\FlightForm.cs:line 174
       at System.Windows.Forms.Timer.OnTick(EventArgs e)
       at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.RunDialog(Form form)
       at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
       at System.Windows.Forms.Form.ShowDialog()
       at IntelliCARS.IntelliCARS.flyFlightButton_Click(Object sender, EventArgs e) in e:\DropBox\c#\IntelliCARS\IntelliCARS\AcarsForm.cs:line 182
       at System.Windows.Forms.Control.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
       at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ButtonBase.WndProc(Message& m)
       at System.Windows.Forms.Button.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.RunDialog(Form form)
       at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
       at System.Windows.Forms.Form.ShowDialog()
       at IntelliCARS.LoginForm.loginButton_Click(Object sender, EventArgs e) in e:\DropBox\c#\IntelliCARS\IntelliCARS\LoginForm.cs:line 45
       at System.Windows.Forms.Control.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
       at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ButtonBase.WndProc(Message& m)
       at System.Windows.Forms.Button.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at IntelliCARS.Program.Main() in e:\DropBox\c#\IntelliCARS\IntelliCARS\Program.cs:line 16
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

May 19, 2016

Hi Paul,

Thanks for the prompt reply. I'm using 2.4.0.0 of the DLL. I tried it with the 3.0 RC1 and had the same issue. The offsets are declared like this:

    public partial class FlightForm : Form {

        private Offset<int> ias = new Offset<int>(0x02BC);
        private Offset<int> tas = new Offset<int>(0x02B8);
        private Offset<int> gs = new Offset<int>(0x02B4);

        public FlightForm(User u, Flight f) {
            InitializeComponent();
            // other program logic
        }
          
        private void updateInfoTimerTick(object sender, EventArgs e) {
                try {
                      FSUIPCConnection.Process();
                      // GS: Ground Speed, as 65536*metres/sec
                      double groundspeed = this.metersSecToKnots((double)gs.Value / 65536);
                } catch(FSUIPCException ex) {
                    if(ex.FSUIPCErrorCode == FSUIPCError.FSUIPC_ERR_SENDMSG) {
                        FSUIPCConnection.Close();
                    }
                }
            } catch(Exception) { 
            
            }
        }

I omitted most of the program logic for clarity. I just wanted to give you an idea of how I do things. Offsets are defined as class variables, then I access them in the updateInfoTimerTick() method after calling FSUIPCConnection.Process().

May 18, 2016

I checked the app's logs, and I'm getting this every 2 minutes:

[12:24 PM]: FSUIPC Error #9: FSUIPC_ERR_NOTOPEN. The connection to FSUIPC is not open.
[12:26 PM]: FSUIPC Error #9: FSUIPC_ERR_NOTOPEN. The connection to FSUIPC is not open.
[12:28 PM]: FSUIPC Error #9: FSUIPC_ERR_NOTOPEN. The connection to FSUIPC is not open.

May 18, 2016

Hello,

My program usually runs fine for about 20 minutes, then crashes from a System.AccessViolationException. I tried rebuilding the program with x86 architecture targeted as was suggested on Stack Overflow, but the problem still persists. Here are the relevant parts of the code:

	private bool fsuipc_state = true;        
	private Timer updateInfoTimer;

	public FlightForm(User u, Flight f) {
            InitializeComponent();
            try {
                FSUIPCConnection.Open();
                this.fsuipc_state = true;
            } catch(FSUIPCException e) {
                if(e.FSUIPCErrorCode == FSUIPCError.FSUIPC_ERR_SENDMSG) {
                    this.log("Error connecting to FSUIPC");
                    this.fsuipc_state = false;
                }

            }
            this.showFsuipcState();
            // This timer updates form info with FSUIPC data
            this.updateInfoTimer = new Timer();
            this.updateInfoTimer.Tick += new EventHandler(this.updateInfoTimerTick);
            this.updateInfoTimer.Interval = 1000;
		this.updateInfoTimer.Start()

        }

        private void updateInfoTimerTick(object sender, EventArgs e) {
            try {
                FSUIPCConnection.Process();  // This is where the AccessViolationException occurs
                if(!this.fsuipc_state) {
                    this.log("Reconnected to FSUIPC");
                }
                this.fsuipc_state = true;
                this.showFsuipcState();
    			
				// Various FSUIPC offsets processed here

            } catch(FSUIPCException ex) {
                if(ex.FSUIPCErrorCode == FSUIPCError.FSUIPC_ERR_SENDMSG) {
                    this.log("Connection to FSUIPC lost");
                    this.fsuipc_state = false;
                    this.showFsuipcState();
                }
            } catch(Exception) { 
            	// catch-all
            }

        }

The updateInfoTimerTick fires every 1 second and updates my UI with FSUIPC offsets. Everything runs smoothly until the Exception.

Regards,

Andrew

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FSUIPC6 - Unexpected behavior with middle mouse view panning

FSUIPC6 - Unexpected behavior with middle mouse view panning

System.AccessViolationException on FSUIPCConnection.Process()

System.AccessViolationException on FSUIPCConnection.Process()

System.AccessViolationException on FSUIPCConnection.Process()

System.AccessViolationException on FSUIPCConnection.Process()

System.AccessViolationException on FSUIPCConnection.Process()

System.AccessViolationException on FSUIPCConnection.Process()

System.AccessViolationException on FSUIPCConnection.Process()

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