inno-setup – InnoSetup卸载询问消息 – Pascal Coding

我为我的一些游戏创建了一个安装程序,我希望卸载程序能够询问我是否要保存我的游戏文件.
这样的事情：当我执行uninstall.exe问我’你想保留所有保存的游戏吗？’是还是不是.如果我点击YES,我的保存文件将保留,我的程序文件将被卸载,如果我点击NO我的程序文件包含保存文件将被卸载.
InnoSetup的PASCAL代码是做什么的？

非常感谢你！

你可以这样做：

; -- UninstallCodeExample1.iss --
;
; This script shows various things you can achieve using a [Code] section for Uninstall
[Setup]
AppName=My Program
AppVerName=My Program version 1.5
DefaultDirName={pf}\My Program
DefaultGroupName=My Program
UninstallDisplayIcon={app}\MyProg.exe
OutputDir=userdocs:Inno Setup Examples Output[Files]
Source: "MyProg.exe"; DestDir: "{app}"
Source: "MyProg.chm"; DestDir: "{app}"
Source: "Readme.txt"; DestDir: "{app}"; Flags: isreadme[Code]
function InitializeUninstall(): Boolean;
begin
  Result := MsgBox('InitializeUninstall:' #13#13 'Uninstall is initializing. Do you really want to start Uninstall?', mbConfirmation, MB_YESNO) = idYes;
  if Result = False then
    MsgBox('InitializeUninstall:' #13#13 'Ok, bye bye.', mbInformation, MB_OK);
end;procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
var
mRes : integer;
begin
  case CurUninstallStep of
    usUninstall:
      begin
        mRes := MsgBox('Do you want to remove all files?', mbConfirmation, MB_YESNO or MB_DEFBUTTON2)
        if mRes = IDYES then
          begin
             MsgBox ('Really remove the files', mbInformation, MB_OK)
             DeleteFile('path\filename.ext');
          End
        else
          MsgBox ('Don''t remove the game files', mbInformation, MB_OK);        
        // ...insert code to perform pre-uninstall tasks here...
      end;
  end;
end;

您可能希望使用最新版本的InnoSetup,就像我测试的那样.上面的示例基于InnoSetup编译器附带的UninstallCodeExample.iss.

我添加了一行代码来说明如何删除文件.它调用DeleteFile函数.您需要为卸载时要删除的每个文件添加一个DeleteFile,该文件不在[Files]部分中.