webzila
asked on
How to run MS-DOS Utilities within a VB program and store result in a string (not a text file)?
Language: Visual Basic 6
I am looking for VB code to run MS-DOS commands (such as ipconfig, tracert, etc...) from within the visual basic program and store the result in a string...
Note: I know how to run an MS-DOS command from within VB, write the output to a text file and display those results but that is NOT what I am looking for here.
I have done it before. Here is the program that contains the code to run things like ipconfig, tracert, ping, etc...from within VB without opening up the MS-DOS window and without writing to a text file:
http://www.webzila.com/utilities/iplookup/
I dont remember the code I used and have also lost the source code (my fault) so I am desperately searching for that piece of code that I used to perform those functions.
I remember it was something very short and simple and saved the result of the ms-dos command to a string and then I displayed the string in the text box...
Can anyone help me with that code.
Thank you
I am looking for VB code to run MS-DOS commands (such as ipconfig, tracert, etc...) from within the visual basic program and store the result in a string...
Note: I know how to run an MS-DOS command from within VB, write the output to a text file and display those results but that is NOT what I am looking for here.
I have done it before. Here is the program that contains the code to run things like ipconfig, tracert, ping, etc...from within VB without opening up the MS-DOS window and without writing to a text file:
http://www.webzila.com/utilities/iplookup/
I dont remember the code I used and have also lost the source code (my fault) so I am desperately searching for that piece of code that I used to perform those functions.
I remember it was something very short and simple and saved the result of the ms-dos command to a string and then I displayed the string in the text box...
Can anyone help me with that code.
Thank you
ASKER
Thats basically the way that I know how to do it. Its just instead of writing the command line result to a txt file you are writing it to a tmp file and then reading and storing the results of that file into a string...
The way I have done it before is that the result of the ms-dos utility went straight into a string. I didnt write any results to any file, it went straight to the string which was then displayed in a text box..
Also I recall the command to do that was really short...I think 1 or 2 lines total..
Check out that url I posted to the program which contains that code...as you can see it doesnt save any files to your computer.
Thanks for replying though.
The way I have done it before is that the result of the ms-dos utility went straight into a string. I didnt write any results to any file, it went straight to the string which was then displayed in a text box..
Also I recall the command to do that was really short...I think 1 or 2 lines total..
Check out that url I posted to the program which contains that code...as you can see it doesnt save any files to your computer.
Thanks for replying though.
SOLUTION
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Set objShell = WScript.CreateObject("WScr ipt.Shell" )
Set objExecObject = objShell.Exec("%comspec% /c ipconfig.exe")
Do Until objExecObject.StdOut.AtEnd OfStream
strLine = objExecObject.StdOut.ReadL ine()
strIP = Instr(strLine,"Address")
If strIP <> 0 Then
Wscript.Echo strLine
End If
Loop
from
http://www.microsoft.com/resources/documentation/windows/2000/server/scriptguide/en-us/sas_wsh_pkoy.mspx
Set objExecObject = objShell.Exec("%comspec% /c ipconfig.exe")
Do Until objExecObject.StdOut.AtEnd
strLine = objExecObject.StdOut.ReadL
strIP = Instr(strLine,"Address")
If strIP <> 0 Then
Wscript.Echo strLine
End If
Loop
from
http://www.microsoft.com/resources/documentation/windows/2000/server/scriptguide/en-us/sas_wsh_pkoy.mspx
Or
Set objShell = WScript.CreateObject("WScr ipt.Shell" )
Set objExecObject = objShell.Exec("%comspec% /c ipconfig.exe")
debug.print objExecObject.StdOut.ReadA ll()
Set objShell = WScript.CreateObject("WScr
Set objExecObject = objShell.Exec("%comspec% /c ipconfig.exe")
debug.print objExecObject.StdOut.ReadA
ASKER
EDDYKT: The code that you posted would be perfect if I were using VBScript but it doesnt seem to work with VB 6 - The code that I remember using was similar to what you posted and short like that...
So if anyone else knows what I am talking about please post that code as this is the prefered answer that I am looking for..
Mikal613: The first link that you posted does what I want. I will accept your answer if nobody else is able to come up with what I am truly looking for. The code in that example is very complicated, I dont remember using anything remotely close to that in my program. Like I said earlier my code was only a few lines.
Thanks anyways
So if anyone else knows what I am talking about please post that code as this is the prefered answer that I am looking for..
Mikal613: The first link that you posted does what I want. I will accept your answer if nobody else is able to come up with what I am truly looking for. The code in that example is very complicated, I dont remember using anything remotely close to that in my program. Like I said earlier my code was only a few lines.
Thanks anyways
ASKER CERTIFIED SOLUTION
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ASKER
Cool EDDYKT that works, but is there a way to keep the MS-DOS window from showing up at all (even though it closes automatically later on)?
Thanks
Thanks
ASKER
Going to try one last time before closing this question :)
So right now, the method that EDDYKT posted works - I am able to run MS-DOS commands and load the result into a string without writing anything to a text file...But this method launches an MS-DOS window (then closes it when is done). Does anyone know a way to perform what I want without hving the MS-DOS window opening up?
So right now, the method that EDDYKT posted works - I am able to run MS-DOS commands and load the result into a string without writing anything to a text file...But this method launches an MS-DOS window (then closes it when is done). Does anyone know a way to perform what I want without hving the MS-DOS window opening up?
Private Declare Function OpenProcess Lib "Kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function GetExitCodeProcess Lib "Kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Private Declare Sub Sleep Lib "Kernel32" (ByVal dwMilliseconds As Long)
Const STILL_ACTIVE = &H103
Const PROCESS_QUERY_INFORMATION = &H400
Private Function ShellWait(PathName, Optional WindowStyle As VbAppWinStyle = vbNormalFocus) As Double
Dim hProcess As Long, RetVal As Long
hProcess = OpenProcess(PROCESS_QUERY_
Do
GetExitCodeProcess hProcess, RetVal
DoEvents: Sleep 100
Loop While RetVal = STILL_ACTIVE
End Function
Private Sub Command1_Click()
Dim TmpFile As String, Ln As String, Result As String
Dim ff As Integer
Result = ""
TmpFile = Environ("Temp") & "\tmpcmd.tmp"
' shell & wait for cmd to complete,redirecting results to a tmp file
ShellWait Environ("Comspec") & " /c " & Text1.Text & " > " & TmpFile, vbHide
' open tmpfile and get data into Result string
ff = FreeFile
Open TmpFile For Input As #ff
Do Until EOF(ff)
Line Input #ff, Ln
If Result = "" Then
Result = Ln
Else
Result = Result & vbCrLf & Ln
End If
Loop
Close #ff
' make sure Text2 has the MultiLine property set to True
Text2.Text = Result
End Sub