在Inno Setup Pascal脚本中声明变量

Question

我在脚本中添加了以下代码：

[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

  

内部错误（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;