COM互操作非托管代码示例 [英] COM interop unmanaged code sample

问题描述

嗨！我试图在非托管C ++中使用ActiveX函数的功能.

Hi! I am trying to use a function of an ActiveX function in unmanaged C++.

我所拥有的:

• Dll文件(称为foocontrol.dll)
• 使用activex(com，我的情况是交替使用)的示例mfc项目，该项目具有使用com对象和该类的机器生成的IDispatch包装器类继承CWnd(在该接口中使用invokehelper 函数调用函数 )
• 已注册的Com对象，typelib，接口和Ole-Com对象查看器报告(我要在该类中使用的GUID和类的名称，以及要在该接口中使用的功能)(将它们称为foocontrol类，Ifoocontrol接口 和fooget函数)
• 有关foocontrol.dll的转储报告.在功能表中，Activex并没有什么特别的(顺序，提示，RVA和名称)
    1       0 0005E70C CPlApplet
           1 00032612 CheckDShowVer
    3       2 00036C69 CheckMustRegisterDLL
           3 00032605 CheckPIII
    7       4 00005DD7 DllCanUnloadNow
           5 0000D47C DllGetClassObject
    9       6 0000FB4C DllRegisterServer
  10       7 0000FB5B DllUnregisterServer
    5       8 00033759 InstallMe
    6       9 00035221卸载M

• Dll file (Call it foocontrol.dll)
• A sample mfc project using activex (com, I use interchangeably for my case) which has machine generated IDispatch wrapper class utilizing the com object and that class inherits CWnd (uses invokehelper function to call functions in that interface )
• A registered Com object, typelib, interface and an Ole-Com object viewer report(GUIDs and names of the class, interface I wanna use in that class and the function I wanna use within that interface) (Call them foocontrol class, Ifoocontrol interface and fooget function)
• DumpBin report for foocontrol.dll. In function table there is nothing special for an activex here (Ordinal, hint, RVA,      name)
   1        0 0005E70C CPlApplet
   2        1 00032612 CheckDShowVer
   3        2 00036C69 CheckMustRegisterDLL
   4        3 00032605 CheckPIII
   7        4 00005DD7 DllCanUnloadNow
   8        5 0000D47C DllGetClassObject
   9        6 0000FB4C DllRegisterServer
  10        7 0000FB5B DllUnregisterServer
   5        8 00033759 InstallMe
   6        9 00035221 UninstallM

我没有的东西

• 任何类型的com对象实现的源代码
• 任何类型的com对象构建后的文件(除了dll)(我没有.lib .tlb等)

• Any kind of source code of com object's implementation
• Any kind of files after com object's build(besides dll) (I do not have a .lib .tlb etc)

我不能做什么:

• 在MFC中使用它(很多开销)
• 使用#import导致我实际上没有任何导入(以前的两种方式在示例CPPCOMClient示例中也进行了讨论，我不想这两种方式但另一种提到为C/C ++方式(使用RawConsumeSTAComponent和AutoWrap的RawAPI.h)或 我什至可以使用托管代码，并且它附带互操作服务)

• Use it in MFC (lots and lots of overhead)
• use #import cause I have nothing to import really (previous two ways are also discussed in example CPPCOMClient example and I want not these two but the other one mentioned as C/C++ way (RawAPI.h using RawConsumeSTAComponent and AutoWrap) or I can even use managed code and interop services comes with it)

我目前不擅长的事情

• 互操作方法
• IDL
• 托管C ++

我想做的是仅使用我声明的内容在类的接口中调用该函数. (我到目前为止尝试过的是PInvoke).有了我所拥有的，就不可能做到这一点(我是说，如果我不能做到这一点，我想我不明白这个主意了. 在COM后面.使用注册表是因为没有dll ****(它会被审查.4个字母:你好，减去o)对吗?但是我们总是需要另一件事来导入"，那么它们的目的是什么?我也听到了注册免费的COM，但我想使用的全部 一个注册的COM)?谁能告诉我该怎么做?

What I wanna do is to call the function in an interface of a class with only what I stated to have. (What I tried upto now is PInvoke ). With what I have is it impossible to do so (I mean if I cannot do this I guess I did not understand the idea behind COM well. Using registries is for not having dll **** (it gets censored. 4 letters: hello minus o) right? but we always need anoter thing to "import" then what is the purpose of them? I also heard registy free COM but all I wanna use a registered COM)? If it is possible can anyone tell me how to do this?

(另外说我将使用CoCreateInstance.类，接口或类型库的第一个参数UID是什么?我猜答案是类CLSID.那么任何人都可以告诉我如何解释PC的接口吗?我不能做正在关注

(Additionally lets say I will use CoCreateInstance. What will be my first parameter UID of class or interface or type library? I guess answer is class CLSID. Then can anyone tell how can I explain interface to my pc? I cannot do following

CoInitialize(NULL);

IMyInterface* pIFace;

CoCreateInstance(CLSID_MyObject, NULL, CLSCTX_ALL, IID_IMyInterface, &pIFace);

推荐答案

alex nolan写道:

alex nolan wrote:

嗨！我正在尝试在非托管状态下使用ActiveX函数的功能C ++.

我所拥有的:

... typelib ...

我没有的东西:

* com对象构建后的任何类型的文件(除了dll)(我没有.lib .tlb等)

Hi! I am trying to use a function of an ActiveX function in unmanaged  C++.

What I have:

... typelib...

What I do not have:

* Any kind of files after com object's build(besides dll) (I do not  have a .lib .tlb etc)

那么，您是否拥有控件的类型库?请注意，类型库不必位于独立的.tlb文件中.更常见的是它作为资源绑定到DLL.

So do you, or don't you, have a type library for your control? Note that  a type library doesn't have to be in a standalone .tlb file. More often,  it's bound to the DLL as a resource.

我不能做的事情:

*使用#import，因为我什么都没有真正导入

What I cannot do:

* use #import cause I have nothing to import really

在DLL本身上尝试#import.如果知道，它将知道如何读取内部的TLB.有一个.

Try #import on the DLL itself. It knows how to read the TLB inside, if  there is one.

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