Is it practical/possible to create a shell extension that could host an internet explorer instance? Any documentation/tuturial/example/website would be appreciated. thanks ...more >>

Hi all, I have a working C# class that doesn't work in the COM client (in this case Excel). I can't enumerate with For..Each..Next. No matter what I try, I always get: "Error 438: Object doesn't support this property of method" I'm sure it's simple, but I'm going nuts over this. Can any...more >>

Transferring arrays from C DLL's to VB.Net I have a DLL written in C. This DLL reads a text file and creates a several very large arrays, 500,000 points and even larger. I would like the get the data in VB.Net so that I can plot it. Presently I am creating an equally sized array in VB and copy...more >>

I have a c++ function which requires that I pass an array of structures which contain further arrays of other structures. I have been unable to do this in c#. Could anyone give me some pointers on how I might be able to perform this task? I have my structures as follows, and i'm passing an ar...more >>

I'm writing a .NET application for monitoring print queues. I can get a handle to a printer by OpenPrinter. I can easily run FindFirstPrinterChangeNotification (but only with IntPtr.Zero as pPrinterNotifyOptions argument) and wait for the printer event. Finally I can use FindNextPrinterChangeNot...more >>

Hi, Did anyone use the tool, REGASM to register your .Net class library as a COM component? I've tried it and found that it didn't registered my class library properly. I kept getting the error "File or Assembly name MyClassLibrary, or one of its dependencies, was not found" when I tried to u...more >>

We have a .net assembly that uses C# events for outgoing notifications. We use COM interop to create and access the .net objects via VB6, including recieving events in VB6 using the WithEvents keyword (we use the ComSourceInterfaces attribute to expose the c# outgoing events to COM clients.) The ....more >>

Hi, I'm trying to set the NoProofing property on a Range from C# code. The value is supposed to be true or false, but the property is expecting an int. How can I set this? Adam ...more >>

Hello, What is the equivalent CLR data type for a pointer to a pointer? For example **ppMyData. Thanks in advance. ...more >>

Hi , I have a native C++ dll that has a function that takes as structure pointer as an argument. It looks something like this. typedef struct st{ char* name; }myst; int func(myst * s){ if (s->name){ CoTaskMemFree(s->name); s->name = NULL; } s-...more >>

Hi there, is there a possibility to host MFC controls in a SWF Control? I have a big MFC application and want to migrate to .NET. It is not possible for me to rewrite all the MFC controls and views so I want to create a new ..NET based frame and use the old MFC controlbars and editors. Is the...more >>

Trying to access the Excel's page setup for a Excel file I'm creating via Office.Interop. I almost got it, I need help with two little things. In PageSetup for the Sheet: 1) How do I set the scaling option buttons? I need to switch the option to 'Fit to # wide by # tall. 2) I want to s...more >>

I am attempting to write an add-in in C# for Outlook 2002. The add-inshould create a button in the command bar. On clicking on this button, I would like to read the current mail item in the Inbox. Are there any pointers as to how this may be done --- Posted using Wimdows.net NntpNews C...more >>

I'm trying to read an Internet Shortcut using IPropertySetStorage, based on the MSDN article "Internet Shortcuts" at http://msdn.microsoft.com/library/en-us/shellcc/platform/shell/programmersguide/shell_int/shell_int_programming/shortcuts/internet_shortcuts.asp and other sources I discovered on t...more >>

My COM programming experience is about a week. I have a simple C++ win32 app (with winmain, msg loop. etc.) that I enhanced to access mshtml and shdocvw. (Essentially, it looks for an open internet explorer instance and cycle throught the elements on the active document, currently just dumpin...more >>

how do i validate a xml file with a schema using VB.net or C#? thanks ...more >>

Hi, I am currently using an external C++ library using C++ code, and I would like to continue using this library from C# code I am writing.I do not have access to the sources of this library. I was looking around, and most of the information I found deals with simpler cases. I could hardly fi...more >>

Hi, I'm trying to populate a word document with data from a database. Every time the document is opened I wish to repopulate certain fields with updated information from the database. I am using c# and have a mechanism in place that opens the document (using the Word COM interface) and at tha...more >>

I have the next question. Actually I can not instance from a ASP file a .NET Object. Actually I need to do a "WRAPPER" in VB6 for accesing the methods of the .NET object, so I can reference the VB6 class. What can I do for do not do this?? Exist other way to instance a .Net Object instead to use a ...more >>

I am calling CryptMsgOpenToEncode() using interop and it succeeds the first call. But from then on every other call fails with invalid parameter. I am passing in the same parameters each time. The problem I am having is that all the parameters look ok from within C#. I am trying to step in t...more >>

I have spent the last week or so building a C# application that uses WIA to take still pictures from a webcam using the WiaVideoClass from the WIAVIDEOLib. Pictures are taken in response to a System.Timers.Timer event (i.e. on threads from the thread pool). This works well when I step through ...more >>

Hi all, I'm attempting to write a wrapper for the open source cURL program found at http://curl.haxx.se/ in c-sharp. It's a great program, but unfortunately no one thus far has tried to write a c# version. Any takers? In the meantime, my problem is... I've made the libcurl.dll (wr...more >>

Hello, I am trying to send a fax from a WebForm using C# and FAXCOMLibEX. It is ok to send a text file but when I try send a Word document the I can't have an answer. My guess is that when I try to open the Word for the first time the application is asking for the initials for the ASPNET user....more >>

-214746726 Hi Whenever I try and call ObjectFromLresult I get -2147467261 as the return value Can some tell where I am going wrong in marshalling the parameters My code is given below [ StructLayout( LayoutKind.Sequential) public struct UUI public int Data1 public int Dat...more >>

Hi all, I ran into this problem and I don't really know which peace of software it to blame. Anyway, all I'm trying to do is to pass an array of strings (variable size) from a VB6 client to C# class that exposes an ActiveX interface. I tried to do various things without much success 1. Do ...more >>

OK. I've got myself a web service created in VS. I can access it from the test page generated by VS via HTTP-POST. I've created a proxy and colpiled it up. The proxy is in the BIN directory of a test app I've put together which when called gives me this ... ,----- [ Error ] | [WebExcepti...more >>

I'm using the ps2pdf.bat file that ghostscript provides through my vb.net code to convert word documents to pdf. After each conversion, a winword process is left runnning in the task manager. Anybody knows how to prevent this from happening? Thanks in advance for your help 7078895...more >>

Hi, I have a class that implements several interfaces. I am having trouble calling any of the methods on one of the interfaces and I suspect that this has something do with the way I am passing an IUnknown pointer. I am desparate to solve this problem as I cannot change in any way the interf...more >>

i'm having trouble assigning a value to a handle. basically i need to perform a mouseclick, wherever the cursor is on the screen at that time, and i have code that does this using the user32.dll WM_LBUTTONDOWN/UP messages. However, when i run my code, i think these messages are sent, but not...more >>

I'm a real newbie and whilst I think I've done everything I'm supposed to, clearly I've got something wrong. I've got a program on my server that can be called via COM. This works just fine. Following the destructions in MSDN I used tlbimp.exe to create a DLL file which I've added as a refe...more >>

I've got a situation where I'm writing a routine that is handed a window handle (from COM) as an hWnd, and I'd like to get the current window geometry for use within the C#.Net code I'm working on. Any thoughts on how to do this? Also, is it possible to hook something at the window level to get ...more >>

Hi. I asked this one before without any response, but I'll give it ago. In Commerce Server they have a pipeline editor which runs a series of components, the main drawback is that it doesnt support strong names or any web-interface programming, so changes need to be made from the admin uti...more >>

We've a Windows application(rich-client application) which uses set of data in the excel input files and generates around 58 workbooks with each workbook containing around 32 sheets each. We tried it in Excel 97 Application makes extensive use of the Excel object model to generate the files Ap...more >>

I am working on VS 2003 VB/Framework 1.1 application The app creates an Excel worksheet using the Excel 10.00 Object Library, following the guidelines set out in Microsoft KnowledgeBase Article 317109, PRB: Office Application Does Not Quit After Automation from Visual Studio ..NET Client, htt...more >>

hi ; at the C# compiler using a MSCOMM32.ocx project, when i want to install this project on the pc which is not installed visual basic says "there is no licence". for solving this problem do i need to register MSComm32.dll into the C#? i read in .NET documents doing this with Ic...more >>

Hi all I have the following managed code signature public bool Method ( UInt32 handleOperation, int arrayCount, Array objectArray, out int objectCount The semantics of the method is to populate the array with a number of handles (ints) and return the number of elements filled in objectCount ...more >>

Folks, I'm trying to call an unmanaged function from VB.NET and keep getting "Object reference not set to an instance of an object" error. The code that i wrote can be found at: http://www.nomorepasting.com/paste.php?pasteID=5981 The dll (if some kind soul has the time to compile and run...more >>

Does anyone have the vb code to use this function I have found the API import for this but not the layout of the structures that need to be passed to the routine. I'm also looking for vb versions of - CreateWindowStation - SetProcessWindowStation - CreateDesktop - SetThreadDesktop - GetGUIT...more >>

Hi I am using windows 2000 +sp4 and .net framework 1.1 I would like to to know where I can download Microsoft.Interop.Security.AzRoles.dll thanks *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

Hello I need to write a plug-in for an application (Autodesk Inventor). This plug-in access and controls the application through COM interfaces. I am using C++ .NET and accessing the COM interfaces from managed code using the RCW. One of the properties (an object reference) of a COM object needs t...more >>

There seems to be two ways of creating a COM in .NET 1) Select the COM Class template 2) Create a class and then use Sn.exe, Gacutil.exe, and Regasm.exe to assign the assembly to GAC and COM to registry I know that COM Class option is a lot easier to use. However, is there any drawbacks from u...more >>

Hi I am trying to use SendMessage to find text in a certain window using the FindText structure as parameter But I keep on getting a "Object reference not set to instance of an object " when the Sendmessage gets executed The same code in vb works just fine Can anyone help me out please with wh...more >>

Hello, I have an idl file written using MS VC++ 6. I used the VS .net midl.exe tool to generate a type library file (.tlb). I have tried to use the tlb file in a VB.Net app using each of the following two methods: 1) Add reference in VS .Net using the COM tab , browse, select etc. 2) Usin...more >>

I'm trying to write a csharp program on top of some c++ code I have. The code need to operate on a fundamental class which is serializable. The class is written in c++, and my idea was to compile that c++ as managed code and use it when the serialized class enters the c# world for de-serializatio...more >>

Hi big problem here. I am automating MS Word. I created a global instance at program startup to avoid having the end user have to wait a extremely long time to get thier report. The first time a report is generated everyting runs fine. The second time an attempt is made to write a report I g...more >>

We have a set of C++ COM components and wish to migrate these to .NET so that the COM interfaces are migrated to .NET interfaces. (We would then have the option of doing implementation with both the .NET classes and native C++ The process of migrating the interfaces would first start with taking ...more >>

To whom it may concern: We are in the process of deciding on a technology to go with - .NET or VB6. The project entails interfacing with Classic COM objects written in C++ on another system. I've suggested that we write our custom code using the .NET framework and expose it to the classic COM obje...more >>

I declare as following [DllImport("netapi32.dll", CharSet = CharSet.Ansi, SetLastError = True, EntryPoint = "NETBIOS") function Netbios(ref NCB: tNCB): byte; external but the runtime always complaint can't find NETBIOS entry at netapi32.dll when I run a C++ without dotnet, it's ok Any solu...more >>

What is the dotNET equilivalent of calling a API function and specifying the a parameter should be passed through using the ByVal keyword, such as the first parameter 'DeviceName'in the following... [VB6 Code] ret = ChangeDisplaySettingsEx(ByVal DeviceName, DevM, ByVal 0&, CDS_NORESET Or CDS_...more >>

I have a shared assembly I'm putting into the GAC. This assembly is the sole user of a COM dll. One approach is to give this dll a strong name by specifying a key in the Wrapper Assembly Key File setting under Project Properties (C#). I must then explicitly put the generated Interop.COMSERV...more >>