Export of symbols in a .exe for the external dll

Hello

I am facing a strange problem.

Basically, I have my app that loads a DLL (I developed).

My DLL exports the functions I can call from my application: OK

I would also like to call functions of my my DLL application: it does not work.

To do this, in my DLL, I give the word:

HMODULE hModule = GetModuleHandle ("application.exe");
FARPROC hFunc = GetProcAddress (hModule, "appFunction"); (defined by: void appFunction (void) __declspec (dllexport) in my application)

hModule is nonzero, but hFunc is NULL. When I use a tool to see the symbols exported by application.exe, there is not.

So my question is: can I export symbols to a .exe with LabWindows 8.5 ?

Thanks in advance

After my experience, it is quite unusual but not unknown for an executable Windows export functions in this way. I never noticed that ICB cannot get there and in 25 years, I've been programming in Windows I've never seen a published API that relies on it. It is much more common for an application to pass callback function addresses in a DLL as parameters in a function call. In this way, the application is free to use any function names he likes and use different reminders in different situations.

However, if you insist on doing your best option - in my opinion - is to transfer all of the CVI application in the Visual Studio development environment. In this way, you can keep the programming with the API of CVI but have the freedom to use all the facilities of VS - including the ability to export symbols from a .exe, as well as the ability to program in C++ if you wish.

Tags: NI Software

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