| Pregunta: | 9988 - COMO CONTROLAR EL FINAL DE UN PROCESO LANZADO CON SHELL |
| Autor: | Rosana Miguel |
| He lanzado un proceso con shell y no puedo seguir ejecutando el código hasta que no haya terminado el proceso lanzado. ¿como puedo hacerlo? | |
| Respuesta: | Luis Fernando Melo |
| Hola .. te envio un codigo que encontré en internet para solucionar este problema.. espero te sirva Puedes copiarlo y para ejecutar la aplicacion, no uses el shell sino la funcion ExecCmd que está implementada en este codigo. 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 Declare Function WaitForSingleObject Lib "kernel32" (ByVal _ hHandle As Long, ByVal dwMilliseconds As Long) As Long Public Declare Function CreateProcessA Lib "kernel32" (ByVal _ lpApplicationName As String, 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 String, _ lpStartupInfo As STARTUPINFO, lpProcessInformation As _ PROCESS_INFORMATION) As Long Public Declare Function CloseHandle Lib "kernel32" _ (ByVal hObject As Long) As Long Public Declare Function GetExitCodeProcess Lib "kernel32" _ (ByVal hProcess As Long, lpExitCode As Long) As Long Public Const NORMAL_PRIORITY_CLASS = &H20& Public Const INFINITE = -1& Dim ret As Long ' Ejecuta un archivo y devuelve cero cuando esta ejecución haya terminado sin errores Public Function ExecCmd(cmdline$) Dim proc As PROCESS_INFORMATION Dim start As STARTUPINFO ' Initialize the STARTUPINFO structure: start.cb = Len(start) ' Start the shelled application: ret& = CreateProcessA(vbNullString, cmdline$, 0&, 0&, 1&, _ NORMAL_PRIORITY_CLASS, 0&, vbNullString, start, proc) ' Wait for the shelled application to finish: ret& = WaitForSingleObject(proc.hProcess, INFINITE) Call GetExitCodeProcess(proc.hProcess, ret&) Call CloseHandle(proc.hThread) Call CloseHandle(proc.hProcess) ExecCmd = ret& End Function | |