The following line of c# code: IADsTools.DCFunctionsClass oIADsTools = new IADsTools.DCFunctionsClass(); causes a memory access violation (but the rest of the program runs, including calls to oIADsTools member functions). Can anyone provide a clue what I'm doing wrong? I created IADsTools...more >>

Environment: C#, Framework 1.1, WinXP SP2 Okay, first off I admit I don't really know what I'm doing here. I find that I must dip into the Windows API because MS, in its infinite wisdom, "bound" the File and FileInfo objects in the Framework to the "short path" version of the file API functi...more >>

This was working: smtpMail.SmtpServer = sServerName smtpMail.Send(Message) '// Now getting HttpException: Could not access 'CDO.Message' object. InteropServices.COMException (0x80040213): The transport failed to connect to server. Note: The Win 2000 AD Servers were replaced By Win 2003 ...more >>

Hello, I have a function in a native DLL declared as follows: __declspec(dllexport) int Start( char* Key ); And the declaration in my C# class is as follows: [DllImport("SockSp10.dll")] public static extern int Start([MarshalAs(UnmanagedType.LPStr)] string Key); Yet when I ca...more >>

Hi, i am facing a peculiar problem with regards to Code Portability both on Pocket PC and Desktops. My company wants me to maintain the common code base for both the platforms. Is .NET suitable for that ( Is WinCE.NET and .NET same). Can we do it in SDK (pocket pc sdk and desktop SDK). ...more >>

Hi, I'm trying to add "Cascade" windows functionality in a C# SDI application, using the win32 API call: WORD CascadeWindows( HWND hwndParent, UINT wHow, const RECT *lpRect, UINT cKids, const HWND *lpKids ); I've being trying to use the API in the following wa...more >>

hello ng i know, probably i am not the first asking about this, but i am really dependent on it. i have an asp.net application (aspx/jscript with c# codebehind) and i am searching for a possibility to invoke c# funtioncalls in the jscript-code. as i know there is a possible way by using ...more >>

Hi all. I have a following problem. I wrote a ATL dll using VC 6.0, which is kinda interface to the database. In this dll, i got a selection dialog, which is whown to the user by calling method, called "SelectProject". I tested the dll in vb6 (and even Notes 6.0) and it works just fine...more >>

I am really struggling with something that is going on in an Excel menu add-in that I have written ( Code snippets are below ) using Visual VB.net 2002. If a commandbar has the same caption as another commandbar elsewhere in the menu structure, it calls both Click events and subsequently inserts...more >>

Hi, I am making an application using C# and excel. I am not sure of the version of office installed on the clients machine. If i make application with excel from office 2000 will the application work with other versions of office? thanx in advance...more >>

Hello All, I'm researching how to port this to C#: const char * viddecDebugNames[NVVIDDEC_DEBUG_LAST] = { "TIMING", "TRACE", "MEMORY", "LOCKING", "ERROR", "CUSTOM1", "CUSTOM2", "CUSTOM3", "VIDDEC", "SPDEC", "MPGVDEC", "DVDSPDEC", "L21DEC", "DXVA" }; But I'm not...more >>

Simple question We have huge application written in VC++6.0. We are planning to develop some new parts with C# and WebServices. Question is.. Is it possible to use C# components from VC++60 application? If it is some reference or example would be nice. Thanls in advance:) Greetings ...more >>

I am trying to implement an existing C++ Sink Interface (????). In the C# initializeTestApp, if I try to cast to WRAPPERLib.IWrapper it throw and exception. Currently the object that comes across is a {System.__ComObject} how can I get this to be a pointer to WRAPPERLib.IWrapper in C#? Here ...more >>

Thanks if you can bring me some answer elements or a link to an answer I searched the web for 48h without result. Those remarks are directly based on the example given with the VS (2003) that you can find localy at: C:\Program Files\Microsoft Visual Studio .NET 2003\SDK\v1.1\Samples\Technol...more >>

I'll just refer to http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=9DEB3050-8CBF-4E69-BC9B-9FD22E8AE536%40microsoft.com&rnum=3&prev=/groups%3Fq%3Dexcel%2520quit%2520interop%2520process%2520asp.net%26num%3D20%26hl%3Den%26lr%3D%26ie%3DUTF-8%26sa%3DN%26tab%3Dwg and ask if the problem has g...more >>

Do you have an example on how to save an Excel file as a text document? Thanks, Nancy....more >>

Greetings I'm using VC++.NET to create a class library. The class library contains managed classes that wrap legacy unmanaged classes by the same name. I use regasm to register the DLL for COM interop. If I don't include any managed classes in the library, the context help in VB6 lists ...more >>

Thanks to Christian Fröschlin suggestions I solved the problem I've posted few days ago, so now I have a .NET application which expose an event through an interface of type InterfaceIsIDispatch, When I use my control in a VBA application I can see the event just declaring my object with WithEv...more >>

I am creating a C# app to generate an Excel file and I have a couple of questions. First I can't get the Zoom option to work. I have an Excel sheet define as oSheet. This line : oSheet.PageSetup.Zoom = 75; doesn't do anything. I get no errors but when I open my Excel file, the zoom is still set...more >>

I am using a third party COM componenet which is not thread safe in a .Net web application using Interop. When two threads (two requests) are trying to access the componenet it is giving an error and crashing. It works fine if the request is made only one at a time. How can I code around this pro...more >>

Hi, I am just trying to find my way in interop and I just need a pointer as to what I should be doing. Reading the documentation tells me I need to use "tlbimp" to create an interop DLL. However, when I do "add reference" and select the COM tab, I can something fom the list (in this instanc...more >>

Hello, I have a 3rd party ActiveX control that I'm using in C# / Visual Studio. I added the ActiveX control to the toolbox and dropped it onto a form and for the most part it works great.. until I need to get data from the control using the method GetImageDataCrop. Visual Studio wrapped ...more >>

hy everybody, I'm accessing a function of a managed-c++-dll within my c#-application. Therefore I encountered following troubles: In my c#-app I have got a byte[]-array, which should somehow be mapped to a char* in my managed-c++-function. Here is the prototype: ---------------------- manage...more >>

Hello, This is a rephrasing of a previous question that I didn't get an answer to, maybe putting it differently will help. In Baf.dll there is a function prototype: BOOL CDECL LaunchRunner (LPCSTR szUserDisplay, BOOL* pbEnabled); How would this be defined in VB.Net or C# and how should ...more >>

Hello We have a VB6 application that integrates an VBA IDE from which the final user can make modifications. We want to pass the application to VB.NET, and the first step, before rethinking the whole application, is to pass the conversion wizard and see how it goes. But we want to keep t...more >>

I have successfully written C# .Net applications that automate excel and word. Now I need to implement automation between .Net applications and I am thoroughly confused. Interop refers to COM - .NET interoperability, is it applicable? In my fiddling I have tried to link to my running .NET apps...more >>