error calling function ,[A call to PInvoke function unbalanced the stack]

Question

i have following code , once i run my application i get this error

anyone know how i fix this error?

ERROR:

A call to PInvoke function \'testcamera!

Answer 1

Please use Cdecl calling convention for that function. Don't ask me why, it just works.

[DllImport("EDSDK.dll", CallingConvention=CallingConvention.Cdecl)]
public extern static uint EdsCreateEvfImageRef(IntPtr inStreamRef, out IntPtr outEvfImageRef);

[DllImport("EDSDK.dll",CallingConvention=CallingConvention.Cdecl)]
public extern static uint EdsDownloadEvfImage(IntPtr inCameraRef, IntPtr outEvfImageRef);