检测指定软件是否在运行（windows和linux）

检测指定软件是否在运行,以下代码适用于windows和linux

unit uappisrunning;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils
  {$IFDEF WINDOWS}, Windows, JwaTlHelp32{$ENDIF}
  {$IFDEF LINUX}, process{$ENDIF};
// JwaTlHelp32 is in fpc\packages\winunits-jedi\src\jwatlhelp32.pas

// Returns TRUE if EXEName is running under Windows or Linux
// Don't pass an .exe extension to Linux!
function AppIsRunning(const ExeName: string): boolean;

implementation

// These functions return Zero if app is NOT running
// Override them if you have a better implementation

{$IFDEF WINDOWS}
function WindowsAppIsRunning(const ExeName: string): integer;
var
  ContinueLoop: BOOL;
  FSnapshotHandle: THandle;
  FProcessEntry32: TProcessEntry32;

begin
  FSnapshotHandle := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
  FProcessEntry32.dwSize := SizeOf(FProcessEntry32);
  ContinueLoop := Process32First(FSnapshotHandle, FProcessEntry32);
  Result := 0;

  while integer(ContinueLoop) <> 0 do
  begin
    if ((UpperCase(ExtractFileName(FProcessEntry32.szExeFile)) =
      UpperCase(ExeName)) or (UpperCase(FProcessEntry32.szExeFile) =
      UpperCase(ExeName))) then
    begin
      Inc(Result);
      // SendMessage(Exit-Message) possible?
    end;
    ContinueLoop := Process32Next(FSnapshotHandle, FProcessEntry32);
  end;

  CloseHandle(FSnapshotHandle);
end;

{$ENDIF}

{$IFDEF LINUX}
function LinuxAppIsRunning(const ExeName: string): integer;
var
  t: TProcess;
  s: TStringList;

begin
  Result := 0;
  t := tprocess.Create(nil);
  t.CommandLine := 'ps -C ' + ExeName;
  t.Options := [poUsePipes, poWaitonexit];

  try
    t.Execute;
    s := TStringList.Create;
    try
      s.LoadFromStream(t.Output);
      Result := Pos(ExeName, s.Text);
    finally
      s.Free;
    end;
  finally
    t.Free;
  end;

end;

{$ENDIF}

function AppIsRunning(const ExeName: string): boolean;
begin

{$IFDEF WINDOWS}
  Result := (WindowsAppIsRunning(ExeName) > 0);
{$ENDIF}

{$IFDEF LINUX}
  Result := (LinuxAppIsRunning(ExeName) > 0);
{$ENDIF}

end;

end.