interop

I can pass a C# struct into FORTRAN just fine. I can even pass an array of a C# struct as an array of TYPE() in FORTRAN . Where I run into trouble is when I tried to return values back into C# . Here is an example: The fortran dll is: MODULE TESTING TYPE VALUEREF INTEGER*4 :: A ENDTYPE VALUEREF CONTAINS SUBROUTINE TEST_REF(T,N) !DEC$ ATTRIBUTES DLLEXPORT :: TEST_REF !DEC$ ATTRIBUTES ALIAS:'TEST_REF' :: TEST_REF !DEC$ ATTRIBUTES VALUE :: N IMPLICIT NONE INTEGER*4 :: A,I,N TYPE(VALUEREF) :: T(N) A = 100 DO I=1,N T(I)%A = A + I END DO END SUBROUTINE END MODULE and the C# calling function that

I'm trying to get all pages of MSWord document via Microsoft.Office.Interop.Word (I'm using C# in VS2012). What I would like to get is List< String > Pages, where index is the number of page. I understand (at least I think so) that there is no direct way to do that. So I came up with something like that: List<String> Pages = new List<String>(); int NumberOfPreviousPage = -1; int NumberOfPage = -1; string InnerText = ""; for (int i = 0; i < Doc.Paragraphs.Count; i++) { Paragraph CurrentParagraph = Doc.Paragraphs[i + 1]; InnerText = CurrentParagraph.Range.Text; NumberOfPage = CurrentParagraph

Referencing How to get IntPtr from byte[] in C# I am attempting to read the data that an IntPtr is referencing into a byte [] and then back into another IntPtr. The pointer is referencing an image captured from a scanner device so I have also made the assumption that capturing this information should be placed into a byte array. I am also not sure if the Marshal.SizeOf() method will return the size of the data the IntPtr is referencing or the size of the pointer itself. My issue is I am receiving the error "Type 'System.Byte[]' cannot be marshaled as an unmanaged structure; no meaningful size

I have tried to do this in many ways, but none is working. Does anyone have a correct example for this? I just want to move the wchar_t* value from a function to the C# level. This isn't as difficult as you think it is... What is wchar_t* ? What value does that type typically represent? A string. It's the equivalent to the LPWSTR type defined in windows.h . So, you marshal it as a string type. However, since it's an out parameter (or a return value), you'll need to use the StringBuilder class on the C# end, rather than the string type. The P/Invoke syntax would look something like this:

I'm trying to use C# with the COM Interop library to open a set of very heavy excel workbooks. I have to use C#, because I also need to start macros, move some cells around, and start a custom excel-add-in my company uses. My program then exits, leaving the workbooks open, each in a separate excel instance. I DO NOT want the workbooks to be closed when the program exits. The problem is that when my C# program exits, over time, the excel workbooks gradually consume more memory, until they're consuming 3.5 gigs of memory from an original 500 mb. I used to open the workbooks by hand, and the

F# powerpack comes with a set of conversion methods to translate from Func<...> to F# functions, either standard or tupled ones. But is it possible to achieve the opposite: in case you want to call from F# code a C# method that takes Func<...> and want to use native F# lambda expression (e.g. fun x -> some_function_of(x))? If I send a F# function with a signature 'a -> 'b to a C# method that expects Func then F# compiler generates the following error: This expression was expected to have type Function<'T,'R> but here has type 'T -> 'R I want to stay with F# lambda expressions but to use a