interop

I create the following class library in C#: [InterfaceType(ComInterfaceType.InterfaceIsDual)] //[Guid(<Generate GUID here>)] public interface _None1 { int retval { get; } } [ClassInterface(ClassInterfaceType.None)] //[Guid(<Generate GUID here>)] [ProgId("Lotr.Test")] public class None : _None1 { public int retval { get { return 1; } } } Then I compile it using "Register for COM Interop" and "Make Assembly COM-visible" options. When I try to access it using Excel 2007 VBA on my machine, works fine. However, if I take the .dll and .tlb files to another machine, and then use regasm to register it

We've got a native library which we use to perform security related tasks for us. We've written an interop library so that we can use it from .NET. We've got two test applications, the first application is written in C++ (unmanaged) and the second is written in C#. They generate the exact same sequence of calls to the native library, but produce different results. I'm lost and can't find any apparent mistake in the .NET import definitions. I've already dumbed it down so that I only work with a very simple interface. I'm looking for ideas why calling a native library from a .NET environment

I am converting several VBA projects to Windows form applications. The only problem I have is that some of the functionality of Excel is essential to the application, such as R1C1 formulas. I do not want to instantiate the Excel application or access saved worksheets. All of the data is retrieved by querying Oracle databases. 2-Dimensional arrays are not an option because the columns contain differing datatypes, and DataGridViews are too slow to work with. I thought simply dimming a Microsoft.Office.Interop.Excel.Worksheet object would be enough, but the program kept failing and upon

I have a generic proof of concept WCF service that is using forms authentication to secure access. All works great when my client is .NET (vb code below) Dim client As SupplierServiceClient = New SupplierServiceClient() client.ClientCredentials.UserName.UserName = "xxxx@xxx.xx.xx" client.ClientCredentials.UserName.Password = "password" Dim SupplierList As List(Of Supplier) = client.GetSuppliers() but as I want this to interop w/ anyone who can do SOAP 1.1/1.2 - how would a PHP or Java client connect? My WCF web.config is listed below (fyi) <system.serviceModel> <services> <service name=

I am trying to encrypt in C++ using CryptoAPI and decrypt Java using SunJCE. I have gotten the RSA key to work -- and verified on a test string. However, my AES key is not working -- I get javax.crypto.BadPaddingException: Given final block not properly padded . C++ Encryption: // init and gen key HCRYPTPROV provider; CryptAcquireContext(&provider, NULL, MS_ENH_RSA_AES_PROV, PROV_RSA_AES, CRYPT_VERIFYCONTEXT); // Use symmetric key encryption HCRYPTKEY sessionKey; DWORD exportKeyLen; CryptGenKey(provider, CALG_AES_128, CRYPT_EXPORTABLE, &sessionKey); // Export key BYTE exportKey[1024];

I am working on a exe to export SQL to Access, we do not want to use DTS as we have multiple clients each exporting different views and the overhead to setup and maintain the DTS packages is too much. *Edit: This process is automated for many clients every night, so the whole process has to be kicked off and controlled within a cursor in a stored procedure. This is because the data has to be filtered per project for the export. I have tried many ways to get data out of SQL into Access and the most promising has been using Access interop and running a doCmd.TransferDatabase(Access

Error: Cannot convert type 'string' to 'object[*,*]' That's the error I have been getting. Can someone give me some pointers so that I can avoid it? Thanks. Note: Interestingly, (object[,])range.get_Value(XL.XlRangeValueDataType.xlRangeValueDefault) will only produce this bug when range.Count == 1 . It works fine when count is equal to and above 2. sample code: object[,] arrValue; //global variable private string[] createFormulaCollection() { ArrayList s = new ArrayList(); try { //look at the currently active excel sheet //iterate through cells (not Null) and find the one contains IES(...) /

Has anyone successfully "wrapped up" a C++ API in Java or .NET? I have an application that provides a C++ API for writing plug-ins. What I'd like to do is access that API from .NET or Java. Would I need to use COM, or are there simpler/better alternatives? If you have a very straight forward method signatures (i.e. methods that takes and returns primitive types such as int, char[], void* ... etc), it is reasonably easy to do so in .NET and still possible but a bit harder in Java with JNI. However, if your class methods uses modern C++ programming techniques such as boost shared pointers and