關閉ERP的程式

有時候ERP授權是有限制的，通常那些用ERP的人為了怕等待，所以就把視窗一直開著，這就是所謂的「佔著毛坑不拉屎」的行為，導致後來要用的人根本連不上去，底下就是本人為了解決這個問題而試著寫的程式，當然路不只有一條。

#!perl
    use strict;
 use Win32::API;
    use Win32::GuiTest qw(:ALL);
 use File::HomeDir;
 
 my $maxLimit = 30; #second
 my $cmdName = "notepad.exe";
 my $counterFile = File::HomeDir->my_home."/counterFile.tmp";
 if(! -e "$counterFile"){
  system "ECHO 0 > \"$counterFile\"";
 }
 system "start ".$cmdName; #run command for testing
 #sleep 1;
 
 while(1){
  my $counter = `CAT \"$counterFile\"`; #read counter from counterFile.tmp
  chomp $counter;
  print "Counter is $counter\n";
  #To get foreground window handle
  my $hlWindow = GetForegroundWindow();
  #=========================================================================
  #To get PID via windows API
  Win32::API::->Import("user32","DWORD GetWindowThreadProcessId( HWND hWnd, LPDWORD lpdwProcessId)") or die $^E;
  my $pidLPDWORDStruct = pack( "L", 0 );
  GetWindowThreadProcessId($hlWindow, $pidLPDWORDStruct);
  my ($fwPid) = unpack ("L", $pidLPDWORDStruct);
  print "Foreground window PID is $fwPid\n";
  #=========================================================================
  
  my @taskList = `tasklist.exe`;
  
  my $targetPid=0;
  my $i=0;
  foreach my $line (@taskList){
   chomp $line;
   if($i > 4){
    my ($imageName, $pid, $sessionName, $session, $memUsage) = split /\ +/, $line;
    if($imageName =~ $cmdName){
     $targetPid = $pid; #save target PID
     if($pid == $fwPid){
      print $imageName."[".$pid."] --- foreground\n";
      system "ECHO 0 > \"$counterFile\""; #clear counter
      last; #break loop
     }else{
      print $imageName."[".$pid."] --- background\n";
      $counter++;
      system "ECHO $counter > \"$counterFile\""; #write to counterFile.tmp
      last; #break loop
     }
    }
   }
   $i++;
  }
  sleep(1);
  if($targetPid != 0 && $counter >= $maxLimit){
   system "taskkill.exe /pid $targetPid"; #kill process
   system "ECHO 0 > \"$counterFile\"";
  }
 }
 exit 0;

本人PO的原文