Folks,
I was using Shell("LPR -P " & IP & " -S " & IP & "c:\label.txt", AppWinStyle.Hide) in my code earlier in my code to send print to printer. suddenlt it stopped working. i started getting file not found error. then i chanegd my code to below, but still no show. now i an getting the following error
System.ComponentModel.Win32Exception was caught
ErrorCode=-2147467259 Message=The system cannot find the file specified NativeErrorCode=2 Source=System StackTrace: at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo) at System.Diagnostics.Process.Start() at xxxxxx.LPRProcess(String pstrFilePath, String pstrQueue, String pstrPrinter) in I:\Visual Studio 2010\Projects\xxxxxx\ScanInSn.vb:line 201 InnerException:
New code
Private Function LPRProcess(ByVal pstrFilePath As String, ByVal pstrQueue As String, ByVal pstrPrinter As String)
Dim prcLprInfo As New ProcessStartInfo
prcLprInfo.FileName = "Lpr"
prcLprInfo.CreateNoWindow = True
prcLprInfo.WindowStyle = ProcessWindowStyle.Hidden
prcLprInfo.UseShellExecute = False
prcLprInfo.RedirectStandardOutput = True
prcLprInfo.Arguments = "-S " & pstrPrinter & " -P " & pstrQueue & " """ & pstrFilePath & """"
Dim prcLpr As New Process
Dim strOutput As String
Try
'Stage = "Run Process.Start( )"
prcLpr.StartInfo = prcLprInfo
prcLpr.Start()
strOutput = prcLpr.StandardOutput.ReadToEnd()
'Stage = "Process started, wait for it to exit"
If Not prcLpr.HasExited Then prcLpr.WaitForExit()
Catch ex As Exception
Throw New Exception("Error running LPR process: " & ex.Message)
Finally
prcLpr.Close()
prcLpr.Dispose()
End Try
If strOutput.Length > 0 Then
Throw New Exception("LPR ERROR: " & strOutput)
End If
End Function
Any ideas? (using .net 4.0)