Hi I am trying to find the way to create an email in outlook. I am using the code given at the end. It works fine the first time but calling the code second time gives the following error; Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the tar...more >>

Hi everyone, In real work,some functions have output parameter,it is not necessary for the calling procedure to pass in a parameter that contain non-null value,so a programmer hope passing in a object variable and get back the output value. The following code works well in VB.NET. ...more >>

Dear All, I wanted to know wether there is a reference for changing different Win32 variable types (Data Types) to C# equivalents or not ? If yes, can anyone post me the URL? Alireza ...more >>

Help! I'm trying to do drag-and-drop of messages from Outlook to a .NET WinForms, but whatever i try, i cant get the message - is there anyone who have succeeded doing this - and how? Thanks in advance ...more >>

Hi all, I have a .NET object that is called from C++ ATL app using all the wonderful interop goodies like tlbexp.exe, regasm.exe, #import ......server.tlb etc. The problem is I want to have only one instance of the object irrespective of the number of clients (C++ or otherwise) connecting to ...more >>

Hi How can we capture Ctrl + Alt + Del keystroke in C# or VB.NET Pradeep...more >>

Dear All, I created a dll with the following: extern "C" _declspec(dllexport) int myFunction(A*){return a->myInt();} class A{ public: int i; int myInt(void){rerturn i;} } I creates a C# client with the folllowing: public class MyClient{ [DllImport("MyDll...more >>

I have some code where the data is stored as a series of UInt32's; often the data is of a type smaller than this, such as a byte, char, etc. What is the proper way to get the desired type when this situation exists? Thanks in advance, Tom ...more >>

Hi, I am trying for word 2000 automation with c#. There I want to get all custom document property of the document as follows: Microsoft.Office.Core.DocumentProperties props = (Microsoft.Office.Core.DocumentProperties)aDoc.CustomDocumentProperties; (where aDoc is active Word document). But t...more >>

Hi, I have an OCX created using Borland Delphi. I'm trying to create a .NET wrapper for this. I used the TLBIMP.exe command to create the .NET DLL. But when I try to add it to the toolbox by through 'Customize Toolbox - .NET Framework Components' and select this new DLL I created, Visual Studi...more >>

I have a COM DLL, which calls methods in a .NET DLL. Both the COM DLL and the .NET DLL use an ActiveX EXE. The ActiveX EXE raises one event. The ActiveX EXE has a strongly named Interop RCW. The .NET uses this RCW but does not listen for events. The COM DLL defines its reference to the Acti...more >>

I am attempting to create a new workbook with the following: exlWB.SaveAs( "test.xls", Excel.XlFileFormat.xlWorkbookNormal, null, null, false, false, ...more >>

I have a VB.NET DLL that I wish to Delay Sign (ie. I want to assign a strong name after compiling the DLL and obfuscating it). This DLL will also be callable for COM Interop I have found instructions for setting up the configuration for COM interop and Strong Names, but not for delay signing whe...more >>

Ive made a dll with dotnet and i used it as a com dll (com interop). So I have a myComNet.dll and myComNet.tlb I need to unregister the dll. Heres what i did: regasm /unregister path\myComNet.dll /tlb it says: Types unregister successfully. Types library 'path\myComNet.tlb' unre...more >>

I have an old vb dll with a method declared as Public Function isOverBudget(ByVal OrderID As Long, ByVal encodeType As Long, ByRef message As Variant) As OverBudgetEnum The thing giving me a headache is the ByRef variant argument. tlbimp created that part of the signature as 'ref object mes...more >>

Hi. I don't know if this is possible, and may sound dummie, but... Is there a way to see if a particular process is a "child" of a thread I am executing? Thank's in advance goncalo...more >>

Here is the problem I add a reference to "Excel9.olb" file, in Application interface there is a Range membe -------- [id(0x000000c5), propget, helpcontext(0x000100c5) Range* Range [in] VARIANT Cell1, [in, optional] VARIANT Cell2) ------- But when .NET Studi...more >>

i initially had some secutity problems while trying to access EXCEL from VB.NET WEB APPLICATION. then i made some changes in dcomcnfg by giving the access permission to users. but now i am getting another error. the error is as follows The server threw an exception. Description: An unhandled...more >>

Problem: We have VB Components which implement an interface from another dll. Example: myClass (in A.dll) implements myInterface (in B.dll) Now, when we generate RCW';s, either in VS.NET or using TLBIMP.EXE , it tries to create a wrapper for the dll (interop.A.dll) and a wrapper for the int...more >>

I am being supplied a count of number of seconds since Jan 1st 1970, i.e. a Unix system time. How can I convert this into a valid .Net DateTime object ? thanks, Mark WinXP / C#.Net 2003 ...more >>

Hello everyone, I've got a C# dll that I'd like to be able to use in VB6. The library looks something like this namespace MyNamespace { public delegate void ProgressDelegate(string label, long current, long total); public class MyClass { public string MyFunction(ProgressDelegate...more >>

Does anyone have any suggestions on how to call the Still Image API to register (and un-reg) a C# application for a device? MSDN has an example for C++ but I'm not sure how to translate this into C# code. The STI API reference is located at: http://msdn.microsoft.com/library/default.asp?url=/...more >>

Hi all! I am a total newbie on this stuff and I am probably asking for an answer for very stupid (simple) problem. Well.. I would like to write a C# application that checks URLs where user go/surf by using IE. I found on the internet how to do that by launching own instance of IE (new Inte...more >>

Hi All, I am having a problem using the AzMan PIA in an ASP.NET application. Here are the basic steps my application is performing: 1. During startup, an AzAuthorizationStore is initialized from an XML File. OpenApplication is called. The resulting IAzApplication is stored in a static varia...more >>

H I am trying to open a word Doc through VB.NET I have included the reference for Microsoft Word 10.0 object library and Microsoft.office.core, and the office that I have on my system is Office 2002 I am using the following code to open a document and add some custom document properties to it ...more >>

I'm not a hardcore .NET InterOp guy, basically I add in the reference, and away I go. Let me explain the problem first, some of this is MSI specific but my problem comes in the InterOp of the MSI automation objects. I am converting a VB6 program I have that is a custom MSI build tool. One of...more >>

Hi, all I created a COM by C# using the method provided by: http://64.4.8.250/cgi-bin/linkrd?_lang=3DCN&lah=3Dc1f2e39239ad48bfc6b0893= 786d6827e&lat=3D1075837339&hm___action=3Dhttp%3a%2f%2fwww%2ec%2dsharpcorn= er%2ecom%2fvbnet%2fCOMinCSharpM%2easp But in Visual Studio 2003, if go toolbox, r...more >>

I have developed a C# application that uses the MS DSO (decision support objects). I simply added the library as a reference in Visual Studio, and then said "using DSO". This gives me the ability to create DSO objects and use methods/properties. This works fine on my machine. What I don't u...more >>

Hi When I open a new mail in outlook from within my vb.net app and try to send email by pressing the outlook send button, nothing happens. The send button gets pressed but it does not send mail. I have to close the mail form, in the end. What is the problem and how can I solve it? Thanks ...more >>

Hi I am calling a function in native C style dll which allocates memory and later freeing the same from C# app However the memory does not get freed and keeps on increasing Below is the code snippet ----------------------------------------------------------- // MemoryDll.cpp : Defines the entry...more >>

I need to access a function from a dll but am having problems with the conversion. the def from the documentation is: extern "C" __stdcall int tira_get_captured_data_vb ( unsigned char data[], int* size ); I tried converting that to: [DllImport("Tira2.dll")] public static extern int t...more >>

(Summary - I need help creating a COM class in Managed Extensions for C++) Hello world, I am exploring UrlMonikers and would like to use them in my C# application. I would like to have my managed class, therefore, implement an interface called IBindStatusCallback (defined within urlmon.idl),...more >>

I have problem with Excel 2000 running on target machine with Win2K when opening it from .NET application (Windows Forms). Application opens Excel from code and Excel stays open for user to work with the xls file. However, if users closes Excel prior to ending the application, Excel closes and d...more >>

I followed MSDN examples to create a .Net component library and a CCW for it. I then proceed to use the CCW in a VB6 app. I see the .Net library listed as a reference in the VB 6 project, I can include that reference and instantiate that object. However, none of the public methods in the .Net compon...more >>

Hi to all! I'd like: to call from C#, through marshalling, a function that dynamically allocate an array of strings. In other words, from C# the call should be the following: int myfunc( out string[] my_array ); // C# where the dimension of the array is calculated internally in the fo...more >>

Can someone explaini this before I go nuts? In the following example, all the event handlers fire except for the submit event handler. No errors, it just doesn't fire. Also, binding any event to the form object stifles the msg from the onsubmit handler embedded in the HTML -- what's going on th...more >>

I am building a Windows application that hosts an ASP.NET application using the MS Web Browser Control. (see http://www.west-wind.com/presentations/aspnetruntime/aspnetruntime.asp for a similar app). I run into problems if one of my ASP.NET pages needs to upload a file (via HTTP). I am using the ...more >>