Hi All, I have been developing a panel for a C152, and am having a small problem. All the switches, trim and throttle work fine. The only thing I can't get working is the mag switch. The following is my code.

 </div>	  <pre class="alt2" dir="ltr" style="border: 1px inset; margin: 0px; padding: 6px; overflow: auto; width: 640px; height: 2114px; text-align: left;">using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using Microsoft.FlightSimulator.SimConnect; using System.Runtime.InteropServices; using System.IO.Ports; using VolumeControl.Library.Constants; using VolumeControl.Library.Structs; using VolumeControl.Library.Win32;  namespace WindowsFormsApplication1 {	 public partial class Form1 : Form	 {		 enum GROUP_PRIORITIES : uint		 {			 SIMCONNECT_GROUP_PRIORITY_HIGHEST = 1,			 SIMCONNECT_GROUP_PRIORITY_HIGHEST_MASKABLE = 10000000,			 SIMCONNECT_GROUP_PRIORITY_STANDARD = 1900000000,			 SIMCONNECT_GROUP_PRIORITY_DEFAULT = 2000000000,			 SIMCONNECT_GROUP_PRIORITY_LOWEST = 4000000000		 } 		 enum Event		 {   			 MAGNETO1_OFF,			 MAGNETO1_RIGHT,			 MAGNETO1_LEFT,			 MAGNETO1_BOTH,			 MAGNETO1_START		 }																		   		 SimConnect simconnect; 		 const int WM_USER_SIMCONNECT = 0x0402; 		 public Form1()		 {			 InitializeComponent();			 init();		 } 		 private void init()		 {			 /////////////////Connect to SimConnect server			 try			 {				 simconnect = new SimConnect("SimConnect Tutorial", this.Handle, WM_USER_SIMCONNECT, null, 0); 				 simconnect.OnRecvOpen += new SimConnect.RecvOpenEventHandler(simconnect_OnRecvOpen);				 simconnect.OnRecvQuit += new SimConnect.RecvQuitEventHandler(simconnect_OnRecvQuit); 				 simconnect.MapClientEventToSimEvent(Event.MAGNETO1_OFF, "MAGNETO1_OFF");				 simconnect.MapClientEventToSimEvent(Event.MAGNETO1_RIGHT, "MAGNETO1_RIGHT");				 simconnect.MapClientEventToSimEvent(Event.MAGNETO1_LEFT, "MAGNETO1_LEFT");				 simconnect.MapClientEventToSimEvent(Event.MAGNETO1_BOTH, "MAGNETO1_BOTH");				 simconnect.MapClientEventToSimEvent(Event.MAGNETO1_START, "MAGNETO1_START");    				 textBox2.Text = "Connected";			 } 			 catch (COMException)			 {				 textBox2.Text = "Unable to Connect";			 }			 /////////////////////////////////////////////		 }  		 void simconnect_OnRecvOpen(SimConnect sender, SIMCONNECT_RECV_OPEN data)		 {			 textBox2.Text = "Connected to SimConnect";		 }  		 void simconnect_OnRecvQuit(SimConnect sender, SIMCONNECT_RECV data)		 {			 simconnect.Dispose();			 Application.Exit(); 		 }  		 protected override void DefWndProc(ref Message m)		 {			 if (m.Msg == WM_USER_SIMCONNECT)			 {				 if (simconnect != null)				 {					 simconnect.ReceiveMessage();				 }			 }			 else			 {				 base.DefWndProc(ref m);			 }		 }  		 private void button1_Click(object sender, EventArgs e)		 {			 simconnect.TransmitClientEvent(0, Event.MAGNETO1_OFF, 0, GROUP_PRIORITIES.SIMCONNECT_GROUP_PRIORITY_HIGHEST, SIMCONNECT_EVENT_FLAG.GROUPID_IS_PRIORITY);		 } 		 private void button2_Click(object sender, EventArgs e)		 {			 simconnect.TransmitClientEvent(0, Event.MAGNETO1_RIGHT, 0, GROUP_PRIORITIES.SIMCONNECT_GROUP_PRIORITY_HIGHEST, SIMCONNECT_EVENT_FLAG.GROUPID_IS_PRIORITY);		 } 		 private void button3_Click(object sender, EventArgs e)		 {			 simconnect.TransmitClientEvent(0, Event.MAGNETO1_LEFT, 0, GROUP_PRIORITIES.SIMCONNECT_GROUP_PRIORITY_HIGHEST, SIMCONNECT_EVENT_FLAG.GROUPID_IS_PRIORITY);		 } 		 private void button4_Click(object sender, EventArgs e)		 {			 simconnect.TransmitClientEvent(0, Event.MAGNETO1_BOTH, 0, GROUP_PRIORITIES.SIMCONNECT_GROUP_PRIORITY_HIGHEST, SIMCONNECT_EVENT_FLAG.GROUPID_IS_PRIORITY);		 } 		 private void button5_Click(object sender, EventArgs e)		 {			 simconnect.TransmitClientEvent(0, Event.MAGNETO1_START, 0, GROUP_PRIORITIES.SIMCONNECT_GROUP_PRIORITY_HIGHEST, SIMCONNECT_EVENT_FLAG.GROUPID_IS_PRIORITY);		 } 		} }</pre>  </div>

The problem I am having is that when I click the 3rd button(MAGNETO1_LEFT), the mag in the simulator will go to both. If I click it again, it will select right in the sim. All the other positions work fine. I just don't understand what is going on here. Can anyone see what I am doing wrong? Thanks Mark

The problem I am having is that when I click the 3rd button(MAGNETO1_LEFT), the mag in the simulator will go to both. If I click it again, it will select right in the sim. All the other positions work fine. I just don't understand what is going on here. Can anyone see what I am doing wrong?

Nothing. I can confirm that it is an FSX bug.I use the MAGNETO1_SET event successfully -- parameters 0 - 4 do correspond correctly with the Off, Right, Left, Both, Start positions, respectively.RegardsPete

Thanks for that, I was starting to go mad.ThanksMark