Load NTDirect.dll from C++ library.

[Dzammer]

Hello.

I try load NTDirect.dll from C# like this:

[DllImport("NTDirect.dll")]
public static extern int Last(string instrument, double price, int size);

and it work fine. How can i use NTDirect.dll from my C++ dll?
I try this code:

typedef int(*last_func)(const char* instrument, double price, int size);
typedef int(*conn_func)(int show_message);

HMODULE nt_lib;
last_func Last;
conn_func Connected;


BOOL APIENTRY DllMain(HANDLE hModule, DWORD  fdwReason, LPVOID lpReserved)
{
	char err_msg[10];

	switch (fdwReason)
	{
	case DLL_PROCESS_ATTACH: // Подключение DLL          
		nt_lib = LoadLibrary("NTDirect.dll");

		if (!nt_lib) {
			OutputDebugString("could not load the dynamic library");

			sprintf_s(err_msg, "%d", GetLastError());
			OutputDebugString(err_msg);

			return FALSE;
		}

		//# resolve function address here
		Last = (last_func)GetProcAddress(nt_lib, "Last");
		if (!Last) {
			OutputDebugString("could not locate the function");

			sprintf_s(err_msg, "%d", GetLastError());
			OutputDebugString(err_msg);

			return FALSE;
		}

		//# resolve function address here
		Connected = (conn_func)GetProcAddress(nt_lib, "Connected");
		if (!Connected) {
			OutputDebugString("could not locate the function");

			sprintf_s(err_msg, "%d", GetLastError());
			OutputDebugString(err_msg);

			return FALSE;
		}

		break;
	case DLL_PROCESS_DETACH: // Отключение DLL
		break;
	case DLL_THREAD_ATTACH:  // Создание нового потока
		break;
	case DLL_THREAD_DETACH:  // Завершение потока
		break;
	}
	return TRUE;
}
....
const char* instr = "TEST";
Last(instr, 200, 100);

and it's not working.

I have this error:

Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call.  This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention.

[NinjaTrader_MichaelM]

Hello Dzammer,

Thank you for writing in. Unfortunately this is not supported. This thread will remain open in case any other users may be able to further assist.

[Dzammer]

After reinstalling platform, this code worked fine, thanks.