InnoSetup:检查.NET Framework - 安装无法正常工作

时间:2017-04-05 02:33:28

标签: .net inno-setup .net-framework-version inno-download-plugin

您好我正在尝试在我的Inno安装脚本中集成.NET Framework版本检查和自动安装。

我正在使用我在此处找到的代码:.../installing-net-framework-4-5-automatically-with-inno-setup/`

问题是,代码无效。脚本编译并输出正常 当我尝试在VM中运行设置时,一切正常。

但是,我没有看到实际安装.NET Framework 只需一个快速的10秒进度窗口,显示正在提取的各种文件(如下所示) 然后它消失了,我的设置就完成了。

当我尝试启动程序时,它报告未安装.NET Framework。

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这是完整的代码:

#include <idp.iss>
function Framework45IsNotInstalled(): Boolean;
    var
        bSuccess: Boolean;
        regVersion: Cardinal;
    begin
        Result := True;

        bSuccess := RegQueryDWordValue(HKLM, 'Software\Microsoft\NET Framework Setup\NDP\v4\Full', 'Release', regVersion);
        if (True = bSuccess) and (regVersion >= 378389) then begin
        Result := False;
    end;
end;

procedure InitializeWizard;
    begin
        if Framework45IsNotInstalled() then
        begin
            idpAddFile('http://go.microsoft.com/fwlink/?LinkId=397707', ExpandConstant('{tmp}\NetFrameworkInstaller.exe'));
            idpDownloadAfter(wpReady);
        end;
    end;

procedure InstallFramework;
    var
        StatusText: string;
        ResultCode: Integer;
    begin
        StatusText := WizardForm.StatusLabel.Caption;
        WizardForm.StatusLabel.Caption := 'Installing .NET Framework 4.5.2. This might take a few minutes…';
        WizardForm.ProgressGauge.Style := npbstMarquee;
    try
        if not Exec(ExpandConstant('{tmp}\NetFrameworkInstaller.exe'), '/passive /norestart','', SW_SHOW, ewWaitUntilTerminated, ResultCode) then
        begin
            MsgBox('.NET installation failed with code: ' + IntToStr(ResultCode) + '.', mbError, MB_OK);
        end;
    finally
        WizardForm.StatusLabel.Caption := StatusText;
        WizardForm.ProgressGauge.Style := npbstNormal;

        DeleteFile(ExpandConstant('{tmp}\NetFrameworkInstaller.exe'));
    end;
end;

procedure CurStepChanged(CurStep: TSetupStep);
    begin
        case CurStep of
            ssPostInstall:
            begin
                if Framework45IsNotInstalled() then
                begin
                    InstallFramework();
                end;
            end;
        end;
    end;

我尝试分解代码并尝试找到问题。不幸的是,我无法识别它。

任何帮助都将受到高度赞赏。谢谢!

1 个答案:

答案 0 :(得分:1)

好吧,最后我确定了这个问题,这是一个令人尴尬的问题。我的VM没有足够的空间,但在设置脚本过程InstallFramework中未正确报告此错误。

条件if not Exec(ExpandConstant('{tmp}\NetFrameworkInstaller.exe'), '/passive /norestart','', SW_SHOW, ewWaitUntilTerminated, ResultCode) then始终返回False,即使.NET Framework安装失败也是如此。

正确的方法是只调用Exec(ExpandConstant('{tmp}\NetFrameworkInstaller.exe'), '/passive /norestart','', SW_SHOW, ewWaitUntilTerminated, ResultCode),然后检查实际的ResultCode以查看.NET Framework安装是否成功。在原始脚本中,此ResultCode的值为5100(空间不足)。

因此,我相应地修改并修复了例程。

procedure InstallFramework;
var
    StatusText: string;
    ResultCode: Integer;
begin
   StatusText := WizardForm.StatusLabel.Caption;
   WizardForm.StatusLabel.Caption := 'Installing .NET Framework 4.5.2. This might take a few minutes...';
   WizardForm.ProgressGauge.Style := npbstMarquee;

   try
       Exec(ExpandConstant('{tmp}\NetFrameworkInstaller.exe'), '/passive /norestart', '', SW_SHOW, ewWaitUntilTerminated, ResultCode)
       if ResultCode <> 0 then
       begin
           MsgBox('.NET installation failed with code: ' + IntToStr(ResultCode) + '.' + #13#10 + #13#10 + 'Setup will now terminate.', mbError, MB_OK);
           DeleteFile(ExpandConstant('{tmp}\NetFrameworkInstaller.exe'));
           Exterminate;
       end
       else 
       begin
           WizardForm.StatusLabel.Caption := StatusText;
           WizardForm.ProgressGauge.Style := npbstNormal;
       end;
   finally
           DeleteFile(ExpandConstant('{tmp}\NetFrameworkInstaller.exe'));
   end;
end;

如果.NET Framework安装失败,Exterminate过程将中止安装(没有提示)。

var
   ForceClose: Boolean;

procedure Exterminate;
begin
    ForceClose:= True;
    WizardForm.Close;  
end;

procedure CancelButtonClick(CurPageID: Integer; var Cancel, Confirm: Boolean);
begin
    Confirm:= not ForceClose;
end;