DllExporterNet4 2.1.0

Usage: Mark the methods you'd like to expose as native code public functions with the [DllExport] attribute like this:

[DllExport]
public static int ShowGUI(int iDestProjNo, [MarshalAs(UnmanagedType.LPTStr)] string sTemplateFileName)
{
    return 0;
}

As a post-build event, call the exe which generates the .il disassembly file, processes it and reassemble it into a .dll like this:

DllExporterNet4.exe $(TargetFileName)
copy $(TargetName).Exports$(TargetExt) $(TargetFileName)

Use LoadLibrary() and GetProcAddress() to call function from native code or just refer to the DLL and function name for cases where add-ins are used.

typedef int(__stdcall* LPSHOWGUIFUNC)(int, LPTSTR);
HINSTANCE hDLL;

hDLL = LoadLibrary(L"DCWGUIx64.dll");

LONG iNewDocId = 0;

if (hDLL != NULL)
{
	// note ANSI string for function name
	LPSHOWGUIFUNC lpfnDllShowGui = (LPSHOWGUIFUNC)GetProcAddress(hDLL, "ShowGUI");

	if (lpfnDllShowGui)
	{
		LPTSTR lptSourceFile = sSourceFile.GetBuffer(0);
		sSourceFile.ReleaseBuffer();
		iNewDocId = lpfnDllShowGui(lDestProjId, lptSourceFile);
	}
	FreeLibrary(hDLL);
}