我有一个用 C++ 编写的静态库，我想将它提供给用 .NET 编写的 Windows 8 和 Windows Phone 8 应用程序。
我想通过设置我的解决方案来尽量减少要维护的单独项目的数量，如下所示：
尝试 #1：只有 UI 项目是特定于平台的
MySolution.sln
|
+- Library (virtual folder to group projects below)
| |
| +- LegacyLib.vcxproj Static Library project - Platform-independant, native C++ code using STL & CRT. Just enough C++/CX to make some types available to .NET and expose a few static methods.
| |
| +- LegacyPcl.csproj Portable Class Library project - References LegacyLib, adds some types, wrappers, interfaces, etc. written in C#.
|
+- SampleApp (virtual folder to group projects below)
|
+- CommonAppSrc Platform-independant C# source code (e.g. MVVM classes for Model and ViewModel).
|
+- SampleApp_Win8.csproj Platform-specific App project - References LegacyPcl, includes files from CommonAppSrc using "Add as Link".
|
+- SampleApp_Wp8.csproj Platform-specific App project - References LegacyPcl, includes files from CommonAppSrc using "Add as Link".
问题：可移植类库似乎不支持以任何形式包含本机 C++ 代码。
在 Windows 8 和 Windows Phone 8 应用程序中包含本机 C++ 的一种建议方法是创建Windows 运行时组件。不幸的是，针对 Win8 和 Wp8 的 WRC 项目是不同的项目类型；没有创建面向多个平台的 Windows 运行时组件的选项。
因此，为每个目标平台创建一个 Windows 运行时组件项目会产生以下结果：
尝试 #2 - UI 项目是特定于平台的，LegacyLib 包装器也是如此
MySolution.sln
|
+- Library (virtual folder to group projects below)
| |
| +- LegacyLib.vcxproj Static Library project - Platform-independant, native C++ code using STL & CRT. Just enough C++/CX to make some types available to .NET and expose a few static methods.
| |
| +- LegacyWrc_Win8.csproj Platform-specific Windows Runtime Component project - References LegacyLib, adds some types, wrappers, interfaces, etc. written in C#.
| |
| +- LegacyWrc_Wp8.csproj Platform-specific Windows Runtime Component project - References LegacyLib, adds some types, wrappers, interfaces, etc. written in C#.
|
+- SampleApp (virtual folder to group projects below)
|
+- CommonAppSrc C# source code (e.g. Model and ViewModel classes).
|
+- SampleApp_Win8.csproj Platform-specific App project - References LegacyWrc_Win8, includes files from CommonAppSrc using "Add as Link".
|
+- SampleApp_Wp8.csproj Platform-specific App project - References LegacyWrc_Wp8, includes files from CommonAppSrc using "Add as Link".
问题：当我尝试从 LegacyWrc_Win8 项目中引用 LegacyLib 时；我看到以下警告：
不推荐添加对“LegacyLib”的引用，因为它与 Windows 应用商店应用程序不兼容。
构建环境说要使 LegacyLib 静态库与我的 Win8 Windows 运行时组件兼容，我必须在 LegacyLib 项目配置中启用Windows Store App Support（忽略警告只会导致稍后出现错误）：
- 项目属性>配置属性>常规>项目默认值
- 将Windows 应用商店应用支持设置为是
接下来，当我尝试对 LegacyWrc_Wp8 项目做同样的事情时，我收到以下错误：
无法添加对“LegacyLib”的引用，因为这两个项目针对不同的平台。
因此，使静态库与 Windows 8兼容使其与 Windows 8 Phone 不兼容。
看起来根本不可能构建可由这两个不同平台使用的单个静态库，即使库本身不包含特定于平台的代码。
我不一定要维护源代码的并行版本，但我必须创建/维护两个单独的项目，每个项目都构建一个特定于平台的静态库版本。
我的解决方案现在每个项目都有一个特定于平台的版本：
尝试 #3 - 每个项目都是特定于平台的
MySolution.sln
|
+- Library (virtual folder to group projects below)
| |
| +- NativeCode (virtual folder to group projects below)
| | |
| | +- CommonLibSrc Native C++ source code using STL & CRT. Just enough C++/CX to make some types available to .NET and expose a few static methods.
| | |
| | +- LegacyLib_Win8.vcxproj Platform-specific Static Library project - Includes files from CommonLibSrc using "Add as Link".
| | |
| | +- LegacyLib_Wp8.vcxproj Platform-specific Static Library project - Includes files from CommonLibSrc using "Add as Link".
| |
| +- DotNetWrapper (virtual folder to group projects below)
| |
| +- CommonWrcSrc Platform-independant C# source code (types, wrappers, interfaces, etc. for LegacyLib support) for the Windows Runtime Component projects.
| |
| +- LegacyWrc_Win8.csproj Platform-specific Windows Runtime Component project - References LegacyLib_Win8, includes files from CommonWrcSrc using "Add as Link".
| |
| +- LegacyWrc_Wp8.csproj Platform-specific Windows Runtime Component project - References LegacyLib_Wp8, includes files from CommonWrcSrc using "Add as Link".
|
+- SampleApp (virtual folder to group projects below)
|
+- CommonAppSrc Platform-independant C# source code (e.g. Model, ViewModel).
|
+- SampleApp_Win8.csproj Platform-specific App project - References LegacyWrc_Win8, includes files from CommonAppSrc using "Add as Link".
|
+- SampleApp_Wp8.csproj Platform-specific App project - References LegacyWrc_Wp8, includes files from CommonAppSrc using "Add as Link".
问题：到目前为止我看不到任何东西（除了这很丑且维护成本更高的事实）。
顺便说一句，我确实研究了使用构建配置的可能性，但它们已经被用于调试/发布和 x86/ARM 的组合。将 Win8/Wp8 添加到组合中只会使配置再次翻倍，并且您已经转移，而不是减少了维护负担。
我错过了什么吗？这似乎是一件很常见的事情。有没有其他人经历过这个并想出替代/更好的方法来做到这一点？
编辑完整性
这就是我最终做的......
MySolution.sln
|
+- LegacyApiLib (virtual folder to group projects below)
| |
| +- CommonCppSource Common C++ source code used by LegacyWrc_*.vcxproj projects
| | below
| |
| +- LegacyPcl.csproj Portable class library with C# API interfaces only; no
| | implementation classes.
| |
| +- LegacyWrc_Win8.vcxproj Platform-specific Windows Runtime Component project - includes
| | legacy C++ files, and uses C++/CX to expose static methods and
| | classes to .NET in Win8.
| |
| +- LegacyWrc_Wp8.vcxproj Platform-specific Windows Runtime Component project - includes
| legacy C++ files, and uses C++/CX to expose static methods and
| classes to .NET in WP8.
|
+- SampleApp (virtual folder to group projects below)
|
+- SampleAppBL.csproj Portable class library containing the app's business logic.
| References LegacyPcl.csproj for legacy API interface definitions.
| Business logic is written against those interfaces; never against
| specific classes. The Win8 or WP8 apps will reference the
| appropriate Windows Runtime Component project, create or register
| the concrete classes that implement the legacy API interface, and
| either pass it into the BL or register it with IOC mechanism. In
| this way, SampleAppBL.csproj never has to know about (or
| reference) any of the WRC projects.
|
+- SampleAppUI_Win8.csproj Platform-specific App project - References LegacyWrc_Win8.vcxproj
| and SampleAppBL. Contains minimal platform-specific Win8 UI code.
|
+- SampleAppUI_Wp8.csproj Platform-specific App project - References LegacyWrc_Wp8.vcxproj
and SampleAppBL. Contains minimal platform-specific WP8 UI code.
我意识到 LegacyApiLib 导出的少数辅助类可以用托管 C++ 而不是 C# 编写。这意味着我可以将它们与 WRC 项目捆绑在一起，这稍微简化了一些事情。