FLPilot

Hi Pete - Yes I did. And it also made more sense when you said write a value of 1,2,4,8, etc... All the 2^0 stuff confused me because I wasn't looking at it as a mathematical equation. I'm looking forward to playing with all the other offsets to see what other trouble I can get into. Thanks again, Brian

Hey Pete, i really am a goof.... I just figured it out. That Compile Error turned out to be that I didn't declare the dwResult variable in that section of the program. Wheeeeww!!!

See the subject heading says it all -- "DUMMY" I'll admit that! I'll try to absorb all this information a little more. Appreciate your input! Well, I didn't get any writes to work at all earlier, but I got the reads to work somehow. Below is an example of how I did that. I know you don't do VB, but it used that VarPtr thingamajig. It came from the FSUIPC_VB.zip or whatever it was named example file in the SDK. ----------------------------------------- Dim dwResult As Long Dim Com1Act As Integer Dim Com2Act As Integer Dim Com1Sby As Integer Dim Com2Sby As Integer Dim Nav1Act As Integer Dim Nav2Act As Integer Dim Nav1Sby As Integer Dim Nav2sby As Integer Call FSUIPC_Read(&H34E, 2, VarPtr(Com1Act), dwResult) Call FSUIPC_Read(&H3118, 2, VarPtr(Com2Act), dwResult) Call FSUIPC_Read(&H311A, 2, VarPtr(Com1Sby), dwResult) Call FSUIPC_Read(&H311C, 2, VarPtr(Com2Sby), dwResult) Call FSUIPC_Read(&H350, 2, VarPtr(Nav1Act), dwResult) Call FSUIPC_Read(&H352, 2, VarPtr(Nav2Act), dwResult) Call FSUIPC_Read(&H311E, 2, VarPtr(Nav1Sby), dwResult) Call FSUIPC_Read(&H3120, 2, VarPtr(Nav2sby), dwResult) Call FSUIPC_Process(dwResult) lblCom1Act.Caption = "1" & Format(Hex(Com1Act) / 100, "00.00") lblCom1Sby.Caption = "1" & Format(Hex(Com1Sby) / 100, "00.00") lblNav1Act.Caption = "1" & Format(Hex(Nav1Act) / 100, "00.00") lblNav1Sby.Caption = "1" & Format(Hex(Nav1Sby) / 100, "00.00") lblCom2Act.Caption = "1" & Format(Hex(Com2Act) / 100, "00.00") lblCom2Sby.Caption = "1" & Format(Hex(Com2Sby) / 100, "00.00") lblNav2Act.Caption = "1" & Format(Hex(Nav2Act) / 100, "00.00") lblNav2Sby.Caption = "1" & Format(Hex(Nav2sby) / 100, "00.00") -----------------------------------------------------------------------------

Thanks Pete, I appreciate your quick reply. I'm still a little confused by it all. I'll have to do some serious research i guess. I'm really in way over my head. perhaps if you posted an example in C, maybe I can decipher it. Or better yet, if anyone else out there reading this post can offer up some VB specific assistance. Would it be something like: ------------------------------------------------------------- Dim Nav1Swap As Byte Nav1Swap = 2^1 FSUIPC_Write(&H3123,2,VarPtr(Nav1Swap),dwResult) -------------------------------------------------------------- That's what I tried but I get a compile error: ByRef argument type mismatch

I figured out how to read the FSUIPC offsets, specifically all the Com/Nav Active/Standby Frequencies. I was trying to access offset 3123 to "swap" the frequencies from standby to active but am having no such luck. I saw some examples of how to write to an offset, but they didn't talk about writing to a specific bit. Could someone post an example of how I write "bits" to the offset to control these and many of the other offsets available also. If there is an example already somewhere that I missed, I would appreciate that also. My programming experience is limited to VBA code from my database writing days.