在 Inno Setup Pascal 脚本中声明变量

Question

我已将以下代码添加到我的脚本中：

[Code]
function IsSomeAppInstalled: Boolean;
begin
  Result := FileExists(ExpandConstant('{pf32}\SomeApp\Some.dll'));
end;

function InitializeSetup(): Boolean;
begin
   Boolean bIsInstalled := IsSomeAppInstalled();
   MsgBox('IsSomeAppInstalled: ' + IntToStr(Integer(bIsInstalled)),
     mbInformation, MB_OK);
   Result := true;
end;

行

Boolean bIsInstalled := IsSomeAppInstalled();

引发错误

Internal error (20)

这里可能是什么错误？

Answer 1

在 Pascal（脚本）中，您 declare variables using var keyword 在实际代码之前：

function InitializeSetup(): Boolean;
var
  bIsInstalled: Boolean;
begin
  bIsInstalled := IsSomeAppInstalled();
  MsgBox('IsSomeAppInstalled: ' + IntToStr(Integer(bIsInstalled)),
    mbInformation, MB_OK);
  Result := true;
end;

在 Inno Setup Pascal 脚本中声明变量

Declaring variable in Inno Setup Pascal Script

inno-setup

pascalscript