Hello, I'm trying to use an ActiveX object from a c# project in Visual Studio 2005. I don't understand the difference between adding the .ocx file as a reference and adding the .ocx file to the toolbox then dropping it on a form. I can only get functionality working if I add it through the...more >>

I am using Visual Studio 2003 (Framework 1.1) with Windows Forms/C#. At some point my application executes a simple statement: string filename = Application.ExecutablePath.Replace(".exe", ".xml"); When I tested the applications under three different operating systems, it turned out that t...more >>

Hi guys/gals I'm not versed at all using p/invoke so I don't know how to fix this: Given this declarations: /**************************************/ typedef struct _SERVICE_STATUS { DWORD dwServiceType; DWORD dwCurrentState; DWORD dwControlsAccepted; DWORD dwWin32ExitCode; DW...more >>

I am converting one vs.net 2003 solution to vs.net 2005. The solution uses one old COM component through Interop. After migration, when I call the Interop wrapper for the old COM component, I got the following error message: Insufficient memory to continue the execution of the program. I re...more >>

Hi, I am trying to get an unmanaged C++ Shell Extension Handler to act as a COM client to a C# COM object. Since it is recommended to not do managed Shell Extension Handlers-- http://blogs.msdn.com/junfeng/archive/2005/11/18/494572.aspx --and since I prefer to program as much in C# as I can,...more >>

I have a simple managed C++ class that I want to call from unmanaged C++. Because of DLL Hell, etc I don't want to register it with COM (multiple apps will use this DLL), and because of the mixed-mode deadlock/loader lock I can't just export a function and call it (I'm using .NET 1.1). Tha...more >>

Is it possible to do interop in a mixed assembly in VS2005? I have an ATL COM object which I want to create and call from a managed class. Something like this:- // ManagedClass.cpp - compile with /clr #include "NativeATLComObject.h" // compiled without /clr public ref class Man...more >>

This code works in the VS2005 IDE using the built in web server, however when I run it on the same machine thru IIS it throws an error. It's suppose to loop thru all the task in a Microsoft Project file using C#. object oAP = objProj.ActiveProject; object prjTa...more >>

Hi I would be grateful if someone could point me in the right direction. I have a COM callable class. In that class I have binary data in a MemoryStream. How do I return that binary data to the caller? The calling language is VBS. Many thanks Jeremy ...more >>

Hi, I'd like to be able to read the positions of all the Icons on my WinXP desktop. I've had a look around to see how to do it and I've come up with the code below...but it doesn't work. :o( The x and y properties of my POINT structure are always zero. It seems the structure isn't gettin...more >>

Hello, In a managed application (c#) , I load an unmanaged dll (c++), but during the execution I need to re-init the dll many times, so I tried to free the unmanaged dll and reload it after, it seems to work only one time , has anyone an explication about potential side effects? let see the ...more >>

Hey everyone, I am running into a problem PInvoking a particular method I expose in a DLL, that basically configures and starts an ETW session (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/perfmon/base/consuming_events.asp). The basic method looks like this: __declspec...more >>

I am writing a script host in VB.NET by implementing hand written IActiveScriptSite and IActiveScriptSiteWindow interfaces on a class. IActiveScriptSite methods are called successfully by a VBScript engine, however IActiveScriptSiteWindow methods aren't. The consequence of this is that VBSc...more >>

Hi, I deploy .net enterorise servcies dll's to com+ use regsvcs. How can i do it such that i embedd the type lib into the dll. I saw /extlb switch but it doesn't take a path? Regards John ...more >>

Hello. I have a DLL written in C. In this DLL i need a function to modify a char * passed from a C# program inside a struct. I have reduced the code to only one struct with one char *, but when i try to call the funcion, i obtain this exception: "Cannot marshal field 'str' of type 'memmap': I...more >>

Hi What is the late binding equivalent of the below code? Many Thanks Regards Dim O As Outlook.Application Dim F As Outlook.MAPIFolder Dim iCon As Outlook.ContactItem Dim oContact As Outlook.ContactItem O = New Outlook.Application F = O.Session.GetD...more >>

According to the Excel manual, there are three variants of the Copy() method that applies to Chart objects (and others): Syntax 1: expression.Copy - copied to clipboard Syntax 2: expression.Copy(Destination) - copies range Syntax 3: expression.Copy(Before, After) - duplicates...more >>

well I am making progress. . . Here is where I was going with this. . . I want an ASP.NET application to fire the event. I want users to be able to run an app and get a real-time view of certain activities. with these set in the COM+ Event Class assembly: <Assembly: ApplicationActivati...more >>

We're having some confusion regarding whether it's legal to generate and distribute IAs for Office 2000. We would be only deploying them to our application directory since we want to support XCopy deployment, and the information up on the Microsoft and MSDN sites is rather... indirect, and also ...more >>

Hi, How would one go about accessing the Application.NormalTemplate.Saved property in Word via C# and LATE bound? I'm currently getting the infamous "do you want to save Normal.dot" error on certain systems from the following code (it seems to be from fresh installations of Word, since some...more >>

Sorry, this one is complicated. I have a normal (completely non-Managed C) C++ app that uses MFC. This app calls: CorBindToRuntimeEx(L"v1.1.4322", NULL, STARTUP_LOADER_OPTIMIZATION_SINGLE_DOMAIN, CLSID_CorRuntimeHost, IID_ICorRuntimeHost, &ppv); Once started, it does a LoadLibrary on ...more >>

Hi guys, I'm having a hard time to subscribe to a native event in C#.NET. The application I'm writing should be able to detect changes in DHCP parameters. This is done through the following: DWORD APIENTRY DhcpRegisterParamChange( DWORD Flags, LPVOID Reserved, LPWSTR AdapterName, ...more >>

Hi! I'd llike to encapsulate a C function with signature: char * foo(char * bar) How would I call this function and how do I free the memory pointer which is returned? TIA! mortb ...more >>

Hi, I'm getting the above Exception when trying to call SaveAs() on a Wb, I've got open. I can call Save() no problem, but wanted to set Filename, etc... Very new to programming Excel with C#, so not sure what this is about. Can anyone help. This is the line causing Exception. I defi...more >>

Hi All - Have a little problem that I hope someone can help with. I have a MT com .exe app that fires events (connection points) from a worker thread which is a COM MTA. It has been working fine with a VB 6 client. I am trying to port the client to VB.net but I am having problems. The event wi...more >>

The C# app consuming this Interop Assembly sees (for example) the read/write property Field as get_Field and set_Field. Is this normal? Here is the snippet from the interop assembly: <ComImport(), TypeLibType(4304), Guid("3D1A1824-7FE5-46B8-810A-85BC59BD95D3")> _ Public Interface tkResultR...more >>