VB SHELL GETS THE PID ISSUE

Take a look at this article, it should be helpful to you.

Strictly speaking, a distinction should be made between the PID and not the process name.

If you are using an XP system, you can call the command tasklist nh fi in the shell"pid eq 2304", 2304 of which should have your PID information.

The PID of that represents the process ID, and you can do a lot of things with this number. You can open the task manager and look at it, and the number is the pid column.

Explorer only returns its own PID when it runs it for the first time, and when it runs again, it returns the PID of the resource it called. If you want to get the PID of the explorer itself in the VB, you need to kill the explorer process through the api function (at which point the desktop disappears), and then open it with the shell.

Repeated runs are not allowed, you pid=shell(""The call actually fails, and when the error occurs, the return value is not pid, and you need to use another method to find the pid of an existing process.

urprogram &

echo $!

If the parent process quits the raid after the urprogram fork, then God knows, except for a pure method that relies on luck like lap shed ps.

getwindowthreadprocessid

This function can get the PID

The shell script gets its own pid is a $$ variable The python script gets the pid it runs is The function can refer to the following example**.

Shell scripts.

#! /bin/sh

echo $$

Python scripts.

import os

print

First get all the windows on the taskbar, use getdesktopwindow getwindow to get the window handle on the taskbar, and then getwindowtext to get the window title in turn to filter your own process window, use getwindowthreadprocessid to get the process pid of the window, and then compare it with the pid you set, and then use showwindow setforegroundwindow and front-end (the pre-setting is setwindowpos).

It's a good way to do it. I use the notepad program as an example, you first open the notepad program, add the following **, click the form.

option explicit

dim h as ole_handle, pid as ole_handle

private declare function findwindow lib "user32" alias "findwindowa" (byval lpclassname as string, byval lpwindowname as string) as long

private declare function getwindowthreadprocessid lib "user32" (byval hwnd as long, lpdwprocessid as long) as long

private sub form_click()

h = findwindow("notepad", vbnullstring)

getwindowthreadprocessid h, pid

shell "taskkill /pid " & pid

end sub