Hi,
I am trying to call a function which exist in unmanaged dll (MFC) from a c#
application.
Here is the declaration in the unmanged code:
extern "C"
{
      _declspec(dllexport) void __cdecl SetEDocName();
}

Here is the declaration in the c# code:
[DllImport("C:\\EManaged.dll", EntryPoint = "SetEDocName",
ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
static extern int SetEDocName();

In run-time I get the error message:
"An unhandled exception of type 'System.EntryPointNotFoundException' occured
in EdmSetup.exe
Additional information: Unable to find an entry point named 'GetEDocName' in
DLL 'C:\EManaged.dll'.

Can someone please advise ?
thanks,
Yoav.

Hello, Yoavo!

Do you habe appropriate define for you function?

lets assume that there are necessary define file "exports.def". Its
contents are the following:
EXPORTS

SetEDocName @1

Then you set /DEF:"exoports.def" for the linker.

Another way to check if dll is exporting this or that entrypoint, you can
use Dependensy Walker. ( exe is called depends.exe )


Y> I am trying to call a function which exist in unmanaged dll (MFC)
Y> from a c#
Y> application.
Y> Here is the declaration in the unmanged code:
Y> extern "C"
Y> {
Y>       _declspec(dllexport) void __cdecl SetEDocName();
Y> }

Y> Here is the declaration in the c# code:
Y> [DllImport("C:\\EManaged.dll", EntryPoint = "SetEDocName",
Y> ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
Y> static extern int SetEDocName();

Y> In run-time I get the error message:
Y> "An unhandled exception of type 'System.EntryPointNotFoundException'
Y> occured
Y> in EdmSetup.exe
Y> Additional information: Unable to find an entry point named
Y> 'GetEDocName' in
Y> DLL 'C:\EManaged.dll'.

Y> Can someone please advise ?
Y> thanks,
Y> Yoav.

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