Hans Zeng

Yeah, I should check it because I want to support FS9. I think I will have much work to do tomorrow, and thanks for your patient answer.

It is my first time to develop a VB program, I am just a php coder before, and I will take your advice. :razz: The FSUIPC4 Offsets Status.pdf told me that "11B8 G-Force: copy of 11BA on touchdown." So I use it.... Hans

Ok, I will refer to the standard code later. I have tested out some issues last night. 'GND-SKY Dim strGND As Integer dwOffset = (&H366) dwSize = 2 If FSUIPC_Read(dwOffset, dwSize, VarPtr(strGND), dwResult) Then If FSUIPC_Process(dwResult) Then GND = strGND End If End If 'VS on Touchdown Dim strLDGVS As Long dwOffset = (&H30C) dwSize = 4 If FSUIPC_Read(dwOffset, dwSize, VarPtr(strLDGVS), dwResult) Then If FSUIPC_Process(dwResult) Then LDGVS = strLDGVS * 60# * 3.28084 / 256# End If End If 'G-Force on Touchdown Dim strLDGGF As Double dwOffset = (&H11B8) dwSize = 2 If FSUIPC_Read(dwOffset, dwSize, VarPtr(strLDGGF), dwResult) Then If FSUIPC_Process(dwResult) Then LDGGF = strLDGGF / 625 LDGGF = Format(LDGGF, "0.00") End If End If 'Timer1 is enabled by other code, and interval is 100ms Private Sub Timer1_Timer() If LDGVS <> "0" And GND = 1 Then 'When touchdown Debug.Print "VS:" & LDGVS & " GForce:" & LDGGF End If End Sub Here is a part of my code, the VS is always accurate but not G-Force, in fact, G-Force sometimes will be 0.

Hi, I am developing a new ACARS with detailed QAR, but there is a problem which puzzled me a lot. I use some timers to execute the QAR in VB, but when I run the ACARS, I have to click a button to connect to FSUIPC, and before submit the flight, I have to click to disconnect, too. It's unconvenient. Even worse, when FS crashed with some error, like "A FATAL ERROR OCCURRED....", my ACARS will be in a "not responding" status. I have to use taskmgr to close it. So, I wonder if there is a way to disconnect/connect to FSUIPC automaticaly. Sorry for my poor English. Hans