by LockwoodTech (3 Submissions)
Category: Windows System Services
Compatability: Visual Basic 5.0
Difficulty: Unknown Difficulty
Originally Published: Sat 29th July 2000
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Synchronous processing of executables - VB will wait until the app. finishes before proceeding
API Declarations
hHandle As Long, ByVal dwMilliseconds As Long) As Long
Private Declare Function CreateProcessA Lib "kernel32" (ByVal _
lpApplicationName As Long, ByVal lpCommandLine As String, ByVal _
lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, _
ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, _
ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As Long, _
lpStartupInfo As STARTUPINFO, lpProcessInformation As _
PROCESS_INFORMATION) As Long
Private Declare Function CloseHandle Lib "kernel32" _
(ByVal hObject As Long) As Long
Private Declare Function GetExitCodeProcess Lib "kernel32" _
(ByVal hProcess As Long, lpExitCode As Long) As Long
Private Const NORMAL_PRIORITY_CLASS = &H20&
Private Const INFINITE = -1&
VBcoders
' Class : CCmdLineExec
' Description : Synchronous processing of executables
' Events
' ------------------------------------------------------
Private Type STARTUPINFO
cb As Long
lpReserved As String
lpDesktop As String
lpTitle As String
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Long
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type
Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessID As Long
dwThreadID As Long
End Type
Public Function ExecCmd(cmdline As String) As Long
Dim proc As PROCESS_INFORMATION
Dim start As STARTUPINFO
Dim lngRC As Long
' Initialize the STARTUPINFO structure:
start.cb = Len(start)
' Start the shelled application:
lngRC = CreateProcessA(0&, cmdline$, 0&, 0&, 1&, _
NORMAL_PRIORITY_CLASS, 0&, 0&, start, proc)
' Wait for the shelled application to finish:
lngRC = WaitForSingleObject(proc.hProcess, INFINITE)
Call GetExitCodeProcess(proc.hProcess, lngRC)
Call CloseHandle(proc.hProcess)
ExecCmd = lngRC
End Function
No comments have been posted about Synchronous processing of executables - VB will wait until the app. finishes before proceeding. Why not be the first to post a comment about Synchronous processing of executables - VB will wait until the app. finishes before proceeding.
