CODEWITHSUNDEEP
delphikill-process
Hector
Hector

Reputation: 189

How to kill a process by name?

How can I kill a process starting from a given process name?

For example: How can I kill program.exe?

I've tried the following code which returns the process name starting from a PID but it doesn't fit for my needs (In my case I have the process name and want to kill it)

function GetPathFromPID(const PID: cardinal): string;
var
  hProcess: THandle;
  path: array[0..MAX_PATH - 1] of char;
begin
  hProcess := OpenProcess(PROCESS_QUERY_INFORMATION or PROCESS_VM_READ, false, PID);
  if hProcess <> 0 then
    try
      if GetModuleFileNameEx(hProcess, 0, path, MAX_PATH) = 0 then
        RaiseLastOSError;
      result := path;
    finally
      CloseHandle(hProcess)
    end
  else
    RaiseLastOSError;
end;

Upvotes: 8

Views: 21849

Answers (2)

ดาบดำ วาเลนไทน์
ดาบดำ วาเลนไทน์

Reputation: 64

work all windows. uses FindWindow unit windows

KillTask('c:\my.cmd');

KillTask('caption');

procedure TForm1.KillTask(ExeFileName: string);
var
  H: HWND;
begin //ExeFileName = caption or cmd path
   H := FindWindow(nil, LPCWSTR(ExeFileName));
   if H <> 0 then
    PostMessage(H, WM_CLOSE, 0, 0);
end;

Upvotes: 1

Fabrizio
Fabrizio

Reputation: 8043

You can use this function in order to kill a process by name:

uses
  TlHelp32;

function KillTask(ExeFileName: string): Integer;
const
  PROCESS_TERMINATE = $0001;
var
  ContinueLoop: BOOL;
  FSnapshotHandle: THandle;
  FProcessEntry32: TProcessEntry32;
begin
  Result := 0;
  FSnapshotHandle := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
  FProcessEntry32.dwSize := SizeOf(FProcessEntry32);
  ContinueLoop := Process32First(FSnapshotHandle, FProcessEntry32);

  while Integer(ContinueLoop) <> 0 do
  begin
    if ((UpperCase(ExtractFileName(FProcessEntry32.szExeFile)) =
      UpperCase(ExeFileName)) or (UpperCase(FProcessEntry32.szExeFile) =
      UpperCase(ExeFileName))) then
      Result := Integer(TerminateProcess(
                        OpenProcess(PROCESS_TERMINATE,
                                    BOOL(0),
                                    FProcessEntry32.th32ProcessID),
                                    0));
     ContinueLoop := Process32Next(FSnapshotHandle, FProcessEntry32);
  end;
  CloseHandle(FSnapshotHandle);
end;

Note:

  • There could be more than 1 process having the same name
  • KillTask function returns the count of the killed processes
  • The page where I've found the function says that it works on Windows 9x/ME/2000/XP.
  • I've personally tested it on Windows 7/10

Upvotes: 25

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