by Sujit Sahu (1 Submission)
Category: Windows API Call/Explanation
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Wed 26th September 2001
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Opening the Commond window and sending command line parameter from VB Form Short and simple.
API Declarations
Declare Function AllocConsole Lib "kernel32" () As Long
Declare Function FreeConsole Lib "kernel32" () As Long
Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) _
As Long
Declare Function GetStdHandle Lib "kernel32" (ByVal _
nStdHandle As Long) As Long
Declare Function WriteConsole Lib "kernel32" Alias "WriteConsoleA" _
(ByVal hConsoleOutput As Long, lpBuffer As Any, ByVal _
nNumberOfCharsToWrite As Long, lpNumberOfCharsWritten As Long, _
lpReserved As Any) As Long
Public Const STD_OUTPUT_HANDLE = -11&
VBcoders
Dim hConsole As Long
Private Sub Command1_Click()
Dim Result As Long, sOut As String, cWritten As Long
sOut = Trim(Text1.Text) '& vbCrLf
Result = WriteConsole(hConsole, ByVal sOut, Len(sOut), cWritten, _
ByVal 0&)
Shell sOut
End Sub
Private Sub Form_Load()
If AllocConsole() Then
hConsole = GetStdHandle(STD_OUTPUT_HANDLE)
If hConsole = 0 Then MsgBox "Couldn't allocate STDOUT"
Else
MsgBox "Couldn't allocate console"
End If
End Sub
Private Sub Form_Unload(Cancel As Integer)
CloseHandle hConsole
FreeConsole
End Sub
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