在 C++ Builder 10 中加载 DLL 时变体或安全数组被锁定

Question

我已将 C++ 项目 6 升级到 C++ 构建器 10。

当我使用 LoadLibrary 加载 DLL 时，抛出该异常。

HINSTANCE hInst;
hInst = LoadLibrary( "MyLibrary.dll" );

Project XXXX.exe raised exception class EOutOfResources with message 'Variant or safe array is locked'.

我没看懂那个"Variant or safe array is locked"表达式。

我试过在新的空 application.DLL 中加载 DLL loading.There 没问题。

但无法在现有项目中加载 DLL。

如何确定问题的根源？

Answer 1

看看这是否有帮助：

Migrating legacy C++ Builder Apps to C++ Builder 10 Seattle

特别是这两句话：

Any libraries that were built with an older version of C++ Builder will need to be recompiled in order to be used by a C++ Builder 10 Seattle project.

和

Don't let C++ Builder 10 Seattle convert your older Builder project. Copy your files into a new folder, create a new project and add your source files to it

Answer 2

问题原因；

我用 notepad++ 比较了两个 .cbproj 文件

我用 C++ Builder 10 创建了 DLL

<PropertyGroup>
    <ProjectGuid>{E3FB4C71-C382-46EC-A17D-5C25890309CD}</ProjectGuid>
    <ProjectVersion>18.0</ProjectVersion>
    <FrameworkType>VCL</FrameworkType>
    <Base>True</Base>
    <Config Condition="'$(Config)'==''">Debug</Config>
    <Platform Condition="'$(Platform)'==''">Win32</Platform>
    <TargetedPlatforms>1</TargetedPlatforms>
    <AppType>Library</AppType>
</PropertyGroup>

我将 DLL C++ Builder 6 升级到 10

<PropertyGroup>
    <ProjectGuid>{923C6CCC-2F12-4C36-B9B1-C765AE96A7A2}</ProjectGuid>
    <ProjectType>CppDynamicLibrary</ProjectType>
    <Base>True</Base>
    <Config Condition="'$(Config)'==''">Debug</Config>
    <FrameworkType>None</FrameworkType>
    <ProjectVersion>18.0</ProjectVersion>
    <Platform Condition="'$(Platform)'==''">Win32</Platform>
    <TargetedPlatforms>1</TargetedPlatforms>
    <AppType>Library</AppType>
</PropertyGroup>

区别在于FrameworkType。

我已将 None 替换为 VCL。

DLL 已加载。

在 C++ Builder 10 中加载 DLL 时变体或安全数组被锁定

Variant or safe array is locked When Load DLL in C++ Builder 10

c++

winapi

c++builder

c++builder-2010