卸載後執行命令

Question

我需要卸載才能在之後運行命令它將刪除已安裝的文件。 [UninstallRun]沒有用，因爲我知道它運行之前，文件被刪除。 我需要一個「postuninstall」標誌。

有關如何完成上述任何建議？

Answer 1

請參閱文檔中的「Uninstall Event Functions」。當'CurUninstallStep'爲'usPostUninstall'時，您可以使用例如CurUninstallStepChanged。

Answer 2

以同樣的方式有一個[Run]部分，Inno允許你定義一個[UninstallRun]部分來指定安裝程序包的哪些文件應該在unistall上執行。

例如：

[UninstallRun] 
Filename: {app}\Scripts\DeleteWindowsService.bat; Flags: runhidden; 

可替代地，通過@Sertac Akyuz，這使得使用的事件的功能，可用於tunning多一點unistalling動作提出的解決方案。以下是CurUninstallStepChanged函數在其他相關函數中的用法示例。

https://github.com/HeliumProject/InnoSetup/blob/master/Examples/UninstallCodeExample1.iss

; -- UninstallCodeExample1.iss -- 
; 
; This script shows various things you can achieve using a [Code] section for Uninstall 

[Setup] 
AppName=My Program 
AppVersion=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 DeinitializeUninstall(); 
begin 
    MsgBox('DeinitializeUninstall:' #13#13 'Bye bye!', mbInformation, MB_OK); 
end; 

procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep); 
begin 
    case CurUninstallStep of 
    usUninstall: 
     begin 
     MsgBox('CurUninstallStepChanged:' #13#13 'Uninstall is about to start.', mbInformation, MB_OK) 
     // ...insert code to perform pre-uninstall tasks here... 
     end; 
    usPostUninstall: 
     begin 
     MsgBox('CurUninstallStepChanged:' #13#13 'Uninstall just finished.', mbInformation, MB_OK); 
     // ...insert code to perform post-uninstall tasks here... 
     end; 
    end; 
end;