Some help with Serial connection

april: And does in fact happen if you have say an image maker open

hmmm.... scary! :P

Ahh… Ok. Yes I’ve done this in the past - again in VB on windows. I had to find the process ID of the window I was looking for and use a windows API function to activate that window, then the sendkeys() function to send individual keystrokes to the app. Not sure if you can apply the same thing on linux or not, but here’s what I did:

Private Function FindApp() As Int32
’ Loop through process table, return process id of process named ‘Notepad.exe’
Dim proptr() As Process
Dim Pid As Process
proptr = Process.GetProcesses() ’ Get an array filled with all process IDs
For Each Pid In proptr
If Pid.MainModule.ModuleName = “Notepad.EXE” Then
Return Pid.Id ’ Notepad found, return process ID
End If
Catch ex As System.ComponentModel.Win32Exception
Catch ex As InvalidOperationException
End Try
End Function

Private Function ActivateApp() As Boolean
’ Gives Notepad focus to receive HID keys
Dim AppID as integer = FindAPP()

If AppID <> 0 Then ’ We found our application!
Return True
Else : Return False ’ Not running??
End If
End Function

To use:
SendKeys.SendWait(“Keys to appear in notepad…”)

This might be interesting (just saw it mentioned in another thread somewhere):

Not exactly what you're looking for, but on Linux a way to capture data coming in from the serial port is this:

minicom -D /dev/ttyUSB1 -b 115200 -o -C dump.txt

where /dev/ttyUSB1 must be changed to the actual device (e.g. ttuUSB0, etc.), and 115200 must be equal to the value given in Serial.begin() on the Arduino.