Hello All I am trying to find the owner of a file or folder on our network (Windows 2000 Server) using VB.Net and/or API. so I can search for Folders that don't follow our company's specified folder structure and naming conventions and then send a Net send message to those users telling them t...more >>

Need to dispaly an excel file on a windows form. Is there any control that does it?...more >>

Hello and thanks for the Help in advance I am trying to move code from VB to VB.Net and having some trouble with the Restrict method I have attached the VB6 code as well as the VB.Net code I have started What I am trying to do is I have a program which displays information based on a Job. On...more >>

I want to make a managed (C#) class available for VBScript developpers. After generating the dll, I used regasm with the /tlb option. I also registered the (strong named) dll with gacutil. The registry shows may class. However, when trying to use that dll in VBScript: - CreateObject:...more >>

Is there a way to bring the old VB6 OLE Container in the .Net world using COM Interop? Using the web browser control is not an option for us, since most of our OLE object are saved and loaded from a database. ...more >>

Hi, My C function takes a CDecl function pointer. I am using delegates as my function pointer and it seems that this requires that my C function pointer be declared as stdcall. Is this correct? Or is there a way to change the calling convention of the delegate? Thanks, Ted...more >>

I need to make the VB.NET object callable from a program called Trade Station. It is a stock analysis and trading tool that is very importiant to my company. They have a scripting languge called easy language that is built into the system. It is supposed to be capable of extending itself by calli...more >>

I've managed to get this far in life without learning anything about COM or VB6. I'm sure the technique for doing what I need is well known, but I apparently don't know the right words to use when framing a Google search. I've got an MMC snapin written in VB6 which uses a number of dotNet ob...more >>

This is NOT my month. Everywhere I turn our C# apps are tossing hair balls! In this case I was cleaning up my development machine and dumped an old version of the Net Framework and reinstalled the latest version of Net Framework 1.1 because of another problem. Now the word interop program I...more >>

Hi How to set size of array in C#. In C++ public class MyArray { public int a[3]; public int b[3]; } MyArray* a = new MyArray(); In C#, I get the pointer of the variable that I allocate in C++. public struct MyArray { public int[] a; //I Can't set the size of array. C...more >>

I want to read the method names from a typelibrary. I can already do this but I need to manually run tlbimp on the win32 exe which contains the type library. Then I add reference to my VS project then I can : methodNameList = new ArrayList(); Type AppServerType =typeof(Skycssrv.SkynetCSApplic...more >>

Whats the correct C# datatype (or marshalling function or something) to use when you're importing a function that has a signature similar to char* FuncA(char c[]) ? Assuming you know that both the parameter for the function and the return value are c-style strings? Thanks in advance! ...more >>

Hi I get an error "Cannot take the address or size of a variable of a managed type" when I try to get an object from IntPtr. How can I fix this error.(I don't want to change Example from class to struct) public class Example { public int index; } public class ExampleApp { pu...more >>

Background: I wrote a VB .NET class that can be passed a form. Any datagrids on the passed in form are listed to the user and the user can select which ones they want exported to Excel. Each grid is exported to a different worksheet within the same workbook. The Excel file is created succe...more >>

Hi I'd like to convert C++ data type to .Net data type. In C# I use pInvoke to call a method in C++ to get an instance of Example class. How to convert Example class in C++ to C#. In C++ public class Example { public: float fCenter[4][2]; } Thanks XingZheng ...more >>

Hi, I'm using P/Invoke to call a C function from a DLL in my C# class. My C function is this char * icmo_version_chk( const char *version ) I've tested both these declarations and both work. public static extern IntPtr icmo_version_chk( [MarshalAs(UnmanagedType.LPS...more >>

Does anyone know how to force interop to use a stdcall interface on the COM objects it creates instead of the cdcall interface that is standard This is very importiant for my project. I need to reference a VB.NET based interop COM object from an outside program. The program will only interact wi...more >>

I need to control a PCI device which has an FPGA on it. The driver API takes this really complicated structure: #pragma pack(1) struct COMMAND_BLOCK { unsigned char command; unsigned char byte2; void* pCommandData; int commandDataSize; void* pResultData; int resul...more >>

I was hoping someone out there can point me in the right direction. I am trying to develop a .Net component that can read OLE Structured Files. I have perused the MSDN documentation - but it is too hard on facts and little on explanation. Does any one recommend a site or book that explains t...more >>

Hi, I'm trying to programmatically update merge fields in headers/footers of a word document. I iterate through the merge fields in the header/footer, and set the result text to the text I want, then save the document, but when I open it the merge field does not appear updated. If anyone can s...more >>

Is it enough to use: bitmap.GetHbitmap() to marshal a .NET bitmap into a native HBITMAP (via the returned IntPtr) or do I need to do more? It doesn't seem to be working. Paul ...more >>

how to interop this NTSTATUS IoGetDeviceObjectPointer IN PUNICODE_STRING ObjectName IN ACCESS_MASK DesiredAccess OUT PFILE_OBJECT *FileObject OUT PDEVICE_OBJECT *DeviceObjec ) the problem is PFILE_OBJECT* and PDEVICE_OBJECT*. I don't want to declare them in C# becau...more >>

I'm having problems figuring this out...I have a .NET component that I am passing a recordset to from plain-vanilla ASP code. The component sits in the GAC. The component has 2 methods, a Function and a Sub Sub ExportRecordset(ByVal rst As Recordset) Function ExportRecordset2(ByVal rst As Re...more >>

Hi When I use tlbimp on Shell32.dll there is no reference to IActiveDesktop or to the CoClass which implements this interface. Can anyone tell me why this should be the case? Will I have to hand-craft the COM wrapper or is there a quicker way? Many thanks Simon ...more >>

Hi all My company are slowly migrating from vb6/com environment to a .net/web service environment. At the moment we have a financial system running on our intranet that allows user to request and retrieve reports- we have a .Net web service that retrieves these requests and passes them on to a COM...more >>

I need to implement an interface that is created with VB6 in my C# component. It is not an option to redefine the interface in C#. Will be there be any threading issues associated with VB6 in my C# component? Thanks. Raghu/.. ...more >>

Hello Thanks for reviewing my question. I have written a C# shared Add-in program for Excel. At run-time, I would like to know how can the shared Add-in find out which directory it is in? My goal is to have a configuration file in the same location as my Add-in. I know in Win32 you can use Get...more >>

Hi @all, I've written a C# DLL to connect to a MS SQL DB. For migration purposes I have to use this C# DLL in my old-fashioned ASP WebSites. Can you give me a detailed description how to make this C# DLL usable in old ASP Sites. Thanks in advanced... Mirco ...more >>

I have a basic question about deploying my .NET dll for COM. My project generates the dll that is deployed on the user's machine using a setup application. I have a couple of questions: 1. On a test machine with the .NET framework installed, after the installation, I had to run the following:...more >>

I have a function that needs to call down into a C .dll and have that C code change the values of my C# struct. I had this, but it doesn't work: public static extern int my_func(string guid, string message, [MarshalAs(UnmanagedType.AsAny)]object data); I then tried this, but this doesn't work ...more >>

Hi I am using the code given at the end to open a word document from within vb.net. It works fine the first time but the second time I get the error; Unhandled Exception: System.Runtime.InteropServices.COMException (0x800706BA): The RPC server is unavailable. at Word.ApplicationClass.get_Do...more >>

I am writing a Service (in C#) that can lanuch processes in the interactive desktop of the currently logged on user. I almost have it working, but even after reading all the results of a gazillion google searches I'm still stumped. Hopefully someone can point out what I'm doing wrong. If the p...more >>