Inno Setup Pascal脚本问题...“未知标识符" [英] Inno Setup Pascal script problem... "Unknown Identifier"

问题描述

我正在尝试检查Java 8是否在注册表中或Java 9-11是否在注册表中，所以我编写了此脚本:

I'm trying to check if java 8 is in registry or java 9-11 are in registry, so i make this script:

[Code]
{ Script to check if a JRE is installed, it will search for the old java 8 location and for the new java 11 location }  
function InitializeSetup(): Boolean;
var
  ErrorCode: Integer;
  JavaVer: string;
begin
    { checking for old java 8 location }  
    RegQueryStringValue(
        HKLM64, 'SOFTWARE\JavaSoft\Java Runtime Environment', 'CurrentVersion', JavaVer);
    ResultOldJava := (Length(JavaVer) > 0);

    { checking for new java 9-11 location }  
    RegQueryStringValue(
        HKLM64, 'SOFTWARE\JavaSoft\JDK', 'CurrentVersion', JavaVer);
    ResultNewJava := (Length(JavaVer) > 0);

    if not ResultOldJava and not ResultNewJava then
    begin
        if MsgBox('ATENCIÓN: Gestor requiere Java 64 Bits instalado en el sistema. No se ha encontrado, ¿Desea abrir la página de descargas oficial? Por favor, recuerde que es necesaria la versión de 64 bits.', mbConfirmation, MB_YESNO) = idYes then
        begin
            ShellExec(
              'open', 'https://www.java.com/es/download/manual.jsp#win',
              '', '', SW_SHOWNORMAL, ewNoWait, ErrorCode);
        end;
    end;
end;

问题在于它正在打印此错误:

The problem is that it's printing this error:

Unknown Identifier 'ResultOldJava'

怎么了?我在帕斯卡的技能很低

What is wrong? my skills in pascal are very low

推荐答案

您已经声明了 ResultOldJava 变量，就像您已经声明了 ErrorCode 和 JavaVer一样.:

You have declare the ResultOldJava variable, the same way you already declare ErrorCode and JavaVer:

function InitializeSetup(): Boolean;
var
  ErrorCode: Integer;
  JavaVer: string;
  ResultOldJava: Boolean; 
begin

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对于其他人来说，带着相同的错误消息到达这里，但是通过 function 或 procedure 调用，而不是通过变量标识符进行访问，请参见 Inno设置-Pascal代码可见性-未知标识符"错误 .

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For others, who arrive here with the same error message, but on a function or procedure call, rather than on a variable identifier, see Inno Setup - Pascal code visibility - "Unknown identifier" error.

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