Ive been trying to use the following function from the imaq.dll library: imgSequenceSetup(SESSION_ID sid, uInt32 numberOfBuffers, void* bufferList[ ], uInt32 skipCount[ ], uInt32 startNow, uInt32 async); Everything I've tried I've gotten the error "Attempted to read or write protected mem...more >>

Hi all, We have a com dll that was written in vb6. We registered the dll on TESTSERVER1 (x86) using regsvr32 and then used tlbimp w/ net 1.1 to create a proxy stub. We then called the proxy stub from a asp.net web service and all worked well. We now setup a x64 server TESTSERVER2. Regist...more >>

We're developing with a third party ActiveX component in VB.NET 2005. I am able to create instances from the component using both early and late binding if I run from within visual studio. However, when I build the project and run the executable on the same machine I get an exception. Early ...more >>

I'm currently trying to retrieve the RFT body of messages in Outlook (from an app written in C#), and since that is, from what I gather, not supported by the Outlook object model, I had to dig deeper into MAPI. Now, I think I am on to something, but I am kind of stuck at one point: It seems I ca...more >>

Could you please help me create an Activex Control that is invisible at runtime I have selected the invisible at run time option which results in DECLARE_OLEMISC_STATUS(OLEMISC_RECOMPOSEONRESIZE | OLEMISC_INVISIBLEATRUNTIME | OLEMISC_CANTLINKINSIDE | OLEMISC_INSIDEOUT | OLEMISC_ACTIVATEWHENV...more >>

I need to call a method in a C DLL that looks like this: void GetSuggestList(LPTSTR buffer, int size); I need to pass a preallocated buffer to the method, which returns = multiple zero terminated strings in "buffer", an empty string = terminating the sequence of the strings. How do I conf...more >>

Hi Jigar Mehta ,, But I am using VS2003 ..... Where i have to mention the strong name( key value ) in assembly... whether in assemblyinfo file or some other location .. please provide write solution Thanx in Advance -- Message posted via DotNetMonster.com http://www.dotnetmonster....more >>

Hi , cmdprompt>>sn.exe -k key.snk cmdprompt>>Regasm asmname.dll /tlb:asmname.tlb cmdprompt>>Gacutil /i asmname.dll I am getting the following error.... Failure adding Assembly to the Cache Attempt to install an Assembly without a Strong name.. Please provide solution...more >>

Hi - I am reposting to this newsgoup as noone seems to be able to help in the webbrowser_ctl group... I am looking to catch scroll events from IE (from within my c# BHO). Getting odd behavior so far, sometimes it starts to work (logs a few scrolls) then it stops recording. All other events ca...more >>

Code: oWord.ActiveDocument.Range.InsertAfter(defword) oWord.ActiveDocument.Range.InsertAfter(" -" & defdef & vbNewLine) How can I get the defword to be underlined while leaving the rest without an underline? Thanks in advance. -Mihir ...more >>

Hello I am using COM object (Word) in my application, and I have two problems: 1) I open new instance of Word, with empty, new document. I hendle the event DocumentBeforeSave. I would like to do something like this on this event: -save active document, but without showing the Save As dialog...more >>

Hello everyone, I'm currently building an Excel add-in using VB.Net and am experiencing some weird effects on one of my test machines. I am running a series of demanding calculations on a sheet, and on the affected machine, when profiled, it shows that System.RuntimeType::InvokeMember uses up ...more >>

Hi, I've tried googling but can't find anything regarding a cells value and how to turn it into a string how's it's visualized within excel, problem areas for me are any none string values obviously, is there an easy way to get the cell value no matter what type it is into a string type as it'...more >>

Hi, I am facing a peculiar problem. My Client Requirement is to Export and Import Excel from and To DataSet for web Application using OWC. Now Problem is When i Export file using OWC .. File's Extension is .xls but it's XML Spreadsheet .. so when i am trying to import Extended Property=EXCEL ...more >>

Whenever I try to use the class (in the normal C++) from the COM object I get the "Class not registered" error. I have tried to register the object with commands "regasm.exe MyModule.dll" and "regasm.exe MyModule.dll /codebase" but neither of them doesn't work. What is the correct way to regis...more >>

Not authorised exception using Web Browser control Guys, Not sure on the best forum for this. We are getting an unauthorised exception when using the web browser control as you can see from the call stack below TestCase 'Tranmit.Sprinter.WebApp.Testing.Purchasing.Invoicing.Edit.E...more >>

I am working on an application that integrates with another app that exposes its database thru ADODB. I can get a recordset without any trouble, but I get a strange error when I call db.sort = "field". The error is: An unhandled exception of type 'System.Runtime.InteropServices.COMException...more >>

Hi, I'm calling an exposed method of a .NET DLL via (regular/old) ASP using COM Interop. This method that I'm calling then calls a .NET web service. Note that this web service I need to call does not yet exist but I am testing error catching routines to make sure potential errors are hand...more >>

Hello all, i have problems to implement a structure including a callback function pointer correctly in C# .NET. The structure is used as a parameter for a initializing function, which is implemented in a C++ dll (unmanaged code) i want to use. THEME: calling a DLL-function from .NET including...more >>

All- I have a .Net 2.0 WinForms app. It references a COM DLL provided by MS. The app works just fine on my dev machine but when I create a setup for it, and run the setup on another system, I get an exception when invoking the functionality that calls the DLL. The exception indicates that the...more >>

In C++, what am I doing wrong here? not sure how to get the "ref" for BufferPtr in C++, there are thousands of examples out there for C# and VB.NET, but so few for managed C++. [StructLayout(LayoutKind::Explicit, Size=48)] ref class TIME_OF_DAY_INFO { public: [FieldOffset(0)] unsign...more >>

I have problem whis Windows Media Services 9 Series. I have videostream, which will consist of two streams(512k/bit and 256k/bit).I need to allocate a stream 256k/bit. In SDK is written: Supporting Multiple Bit Rate Files Several versions of the same audio or video content can be stored in ...more >>

>From an asp.net web page I want the user to open the results of a SQL query in Excel, as automatically as possible (ie not having to loop through columns, rows, in code). For this, dataset.writexml works great (got the code from http://forums.devx.com/archive/index.php/t-57273.html ) The ...more >>

Hi gurus, Can anyone tell me please when I really must setup the value of memory that aspnet_wp or w3wp must use in IIS server machine? What I mean is that we have clients that have diferent specificatiosn in their server machines that have IIS to runnning WebApplications. This can chang...more >>

Hi all, I have a problem with the project I am working on. Someone is coding a driver in plain (unmanaged) C++, and it is required to subscribe a callback for certain notifications. This driver is supposed to be used from a managed environment though, so what I want to do is subscribe a man...more >>

Hi, I've written some code to attempt to get the selected text from an HTML document loaded in a running instance of IE. I need to be able to access the frames collection of the IHTMLDocument2 interface so that I can get text from the documents contained in the frames. Here's what I've got:...more >>

Hello, My application fail to start on another computer. The exception is thrown trying to call "InitializeComponent()" as you can see below: System.Runtime.InteropServices.COMException (0x80040154): Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) ...more >>

Hi, I need to reproduce the code here using C#/pinvoke: http://blogs.msdn.com/cjacks/archive/2006/10/09/How-to-Determine-if-a-User-is-a-Member-of-the-Administrators-Group-with-UAC-Enabled-on-Windows-Vista.aspx Unfortunately, my attempts aren't panning out - the returned values are off fromw ...more >>

in my windows application my re is to include in an project ...more >>

If there is a better NG for compact framework interop then please let me know. I am having a few issues marshalling structs to unmanaged memory whilst trying to acheive the correct layout. Its a shame that the Pack parameter is not supported in the compact framework. I have a simple struct...more >>

I am getting folllowing error in one of the service components. I have not override base class's (ServicedComponent ) Deactivate function. Also it's library component called by asp.net worker process and I have not changed the default object pool settings. Please advise. Event Type: Error ...more >>

I am new to using .Net interop to access legacy COM server. I keep getting a cast exception when I try to cast between imported interfaces. Here is and example of what I am trying to do and how I thought it was suppose to be done (ie I thought interop import dll would handle casting between int...more >>

Obj = Marshal::GetTypedObjectForIUnknown(pIUnknown, pTargetType); // pTargetType is certain interface type Did GetTypedObjectForIUnknown use QueryInterface to query the desired interface? My intent is using GetTypedObjectForIUnknown to test 2 interfaces can inter-casting. If succeed, wi...more >>

Hi, I have a .net class library which I want to expose to VB6. There is a public enumeration in the .net namespace, and after com type library is created from the .net dll, the enumeration elements end up having a prefix with the enum name. I would like to know how to make the type library no...more >>

I have created an invisible OCX control using MFC8.0 (to be loaded by WW intouch) I would like to call a .NET2 remoting method from this OCX and realise that I MUST not do it directly, VS displays CLR stability warning when I tried running the control having compiled it with /CLR set Is...more >>

I have written a .NET (c#) COM object, which works great, however it is now time to deploy it. If I copy the file to a target machine and run regasm on it, all is great. If I deploy the application (using Installshield 11) all is not great. I realzie this may be a hybrid discussion for this...more >>

Hello, Am porting COM component(used by a VC++ app) to dotnet. Apparently, this needs to be called by the existing app. The existing signature in COM HRESULT ReadRegStr(DWORD hKey, BSTR bstrSubKey, BSTR bstrValueName, BSTR* pbstrResult); ..NET signature: public string ReadRegStr(Int32 ...more >>

Hi all. I'm trying to write a simple custom marshaller. public class MyFirstMarshaller : ICustomMarshaler { public static ICustomMarshaler GetInstance(string Cookie) { return(new MyFirstMarshaller()); } public void CleanUpManagedData(ob...more >>

Hi, I am facing a peculiar problem with Excel Automation. I have a winform where in I display some data in OWC axSpreadsheet. Next I export this data to an ..xls file. When I try to open (through OleDb) and read this file, I get an error - "External table is not in the expected format." ...more >>

Hey All, I have added my XML comments to my VB.Net solution and from within VS2005 they show up quite nicely in the Object Browser, etc. However, when the class library is referenced from a COM app, the procedure attributes do not show up. Is there a way to fix this? Thanks, TC ...more >>

Hi, I am looking for a fast Win32 code solution for detecting if file is used by another process (aka locked). Right now I am using following code but it throws errors that I catch. Is there something faster and cleaner? /// <summary> /// Determines whether [is file locked] [the specified...more >>

Hello newsgroup, i have the following problem and i hope someone is able to either tell me how to solve it or to tell me that it is even not possible : Given an VB6 ActiveX DLL (Common.dll) that defines the following public type Public Type T_DEMO ID As Integer Value as String En...more >>

Hello I have a c# console application who generate a new excel file vie Interop. All works fine. Now I want to move the code in a c# webservice. When I try to build an instance of the excel object I got an Access Denied exception. I think it is a security config problem. But I don´t know ho...more >>

Hi all, I'm newbie on this NG. I have a basic question for the expert programmers. I use VB .NET by 3 months about. When I want use a factory COM dll in my program normally I follow this steps in Microsoft Visual Basic .NET Development environment: 1) Add Reference ... 2) Browse for the c...more >>

Hi all, I need to call an unmanaged function that accepts a void* parameter. To call the function I use an IntPtr object using Marshal.AllocHGlobal: [DllImport ...] public static extern int ExampleFunction(IntPtr p, ref int size); .... int size = 0; IntPtr p = Marshal.AllocHGlobal(512); ...more >>

Does anyone know the correct way to marshal the second parameter based on this definition? HRESULT Next( [in] ULONG celt, [out, size_is(celt), length_is(*pcFetched)] IUnknown **ppObjectArray, [out] ULONG *pcFetched ); Thanks for any help!...more >>

Hi, I'm calling a method from a C dll which I have defined as follows: [DllImport("avpzip.dll", EntryPoint="VERIFY_ZIP", CharSet=CharSet.Ansi, ExactSpelling=false, CallingConvention=CallingConvention.StdCall)] public static extern int Verif...more >>

Hi, I need some pointers to resources that have sample code/examples on how to create and deploy side-by-side assemblies. I have a collection of binaries that are developed in VS2005. Currently, our system registers these binaries and uses COM to interact with them. I was looking into deployi...more >>

Hi, Not sure if this is the right group for this but I think it could loosely be described as an interop problem since it is the interop dll I can't get to work. Can anyone tell me how to install the Microsoft.mshtml.dll correctly? I am running VS2005. I have a C# project which uses msht...more >>

I would like to have mshtml render an html document for me with a print template applied to set margins, header, and footer. Specifically, I would like to have it render each 'print' page to something like a metafile that I could then save, send to a PrintDocument, or whatever. IHTMLElemen...more >>