I can access a method from a C++ D开发者_StackOverflow社区ll using C# using this method in the C++:
extern "C"
{
__declspec(dllexport) void DisplayHelloFromDLL()
{
printf ("Hello from DLL !\n");
}
}
this works great...but the solution I am working with uses this as the entry point:
extern "C" int WINAPI _tWinMain(HINSTANCE hInstance,
HINSTANCE /*hPrevInstance*/,
LPTSTR lpCmdLine,
int /*nShowCmd*/)
Is there a way I can access this like I have done with the __declspec
method?
Cheers
That is not a DLL entry point, that is a primary application entry point. You will need to create it as a new process via CreateProcess.
_tWinMain
is actually a #define
to either WinMain
or wWinMain
. You also need to make sure it's actually exported.
That being said, why would a DLL have a WinMain
function at all? You should just export a normal function like DisplayHelloFromDLL
.
[edit]
The project you are trying to reference -- the one with _tWinMain
-- is an EXE (as @DeadMG says). You should not try to import its functions from C# like you do with DLLs; instead you should launch it with Process.Start.
The answer was to call a function created in the C++ using:
extern "C"
{
__declspec(dllexport) void StartAgent()
{
printf ("Starting Agent... \n");
StartServer(true);
RunMainLoop();
}
}
This is then called in the C# using:
[DllImport("myDll.dll")]
public static extern string StartAgent();
StartAgent();
Calling this from the C# and into the C++ gets the application running.
精彩评论