安装程序 – 安装更新之前关闭运行的程序版本(Inno Setup)

如果应用程序有一个Mutex,您可以在Inno Setup安装程序中添加一个AppMutex值,并显示一条消息,告诉用户停止该程序.您可以通过使用SysInternals Process Explorer并选择程序/进程并查看下方窗格中的句柄(CTRL-H)来找到Mutex(如果有的话).

以下是提供几种方法的KB文章的链接：
http://www.vincenzo.net/isxkb/index.php?title=Detect_if_an_application_is_running

或者,您可以在InitializeSetup中尝试此(UNTESTED)代码：

[Setup]
;If the application has  Mutex,uncomment the line below,comment the InitializeSetup function out,and use the AppMutex.
;AppMutex=MyApplicationMutex

[Code]
const
  WM_CLOSE = 16;

function InitializeSetup : Boolean;
var winHwnd: Longint;
    retVal : Boolean;
    strProg: string;
begin
  Result := True;
  try
    //Either use FindWindowByClassName. ClassName can be found with Spy++ included with Visual C++. 
    strProg := 'Notepad';
    winHwnd := FindWindowByClassName(strProg);
    //Or FindWindowByWindowName.  If using by Name,the name must be exact and is case sensitive.
    strProg := 'Untitled - Notepad';
    winHwnd := FindWindowByWindowName(strProg);
    Log('winHwnd: ' + IntToStr(winHwnd));
    if winHwnd <> 0 then
      Result := PostMessage(winHwnd,WM_CLOSE,0);
  except
  end;
end;