dll中的Delphi表单 [英] Delphi forms in dlls

问题描述

将具有完整功能的窗体放在dll中是个好主意.并且主应用程序将调用返回表单对象的dll函数.

Is it good idea to put Forms that have complete functionality in dll. And main app will invoke dll function that returns form object.

推荐答案

在Delphi中，可接受的方法是使用包而不是DLL.

The accepted way to do this in Delphi is to use packages rather than DLLs.

包本质上是DLL，但具有特定于Delphi的功能，该功能允许VCL对象跨包边界使用.

Packages are essentially DLLs but with Delphi specific capabilities that allow VCL objects to be used across package boundaries.

尝试使用DLL执行此操作将导致程序包处理各种问题.软件包的缺点之一是，所有模块都必须使用相同版本的Delphi 进行编译.但是，如果要跨模块边界共享对象，则使用DLL也会遇到相同的限制.

Trying to do this with DLLs will lead to a variety of problems that packages deal with. One downside of packages is that all modules must be compiled with the same version of Delphi. But if you are wanting to share objects across module boundaries then you would face the same restriction if you used DLLs.

Delphi文档涵盖了软件包.

The Delphi documentation has extensive coverage of packages.

话虽如此，我想补充一点，如果您可以将所有代码放入单个模块(.exe或.dll)中，那么它的确会使工作变得更加简单.

Having said all that, I would add that if you can put all your code into a single module (.exe or .dll) then it does make life a lot simpler.

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