使用Inno Setup在安装过程中报告已安装的.NET Framework版本

问题描述

我正在尝试使用Inno Setup来创建安装程序.我的第一次尝试是向用户报告当前安装了哪个.NET Framework.我想出了以下脚本，该脚本安装了令牌exe，但没有显示我想显示已安装Framework版本的消息框.

I am experimenting with Inno Setup in preparation for creating an installer. My first attempt is to report back to the user which .NET Framework is currently installed. I came up with the following script, which installs a token exe but it does not show the message box that I wanted to display the installed Framework version.

[Setup]
AppName=NETFramework_Test
AppVersion=1.0.0
DefaultDirName=c:\al\NetFWTest\test
WizardStyle=modern
OutputDir=c:\al\NetFWTest

[Files]
Source: "c:\al\computer\miscsmallapps\tmpdir\tmpdir.exe"; DestDir: "{app}";

[Code]
var
  VersionNum: cardinal;

begin
  if RegQueryDWordValue(HKLM, 'SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full',
       'Version', VersionNum) then
    begin
      MsgBox('The installed .NET Framework version:' + IntToStr(VersionNum),
        mbInformation, MB_OK);
    end
  else
    begin
      MsgBox('Error reading the Registry...', mbInformation, MB_OK);
    end;
end.

推荐答案

您需要从某些 Inno Setup事件功能，例如 InitializeSetup .

You need to call your code from some Inno Setup event function, like InitializeSetup.

有关示例，请参见 Inno设置-如何在安装之前/安装过程中检查系统规格?

此外， Version 的值是字符串，因此您需要使用 RegQueryStringValue .

Also, the Version value is string, so you need to use RegQueryStringValue.

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