I am creating a user control derived from RichTextBox. I have to display a tooltip under a custom hyperlink I have created the cusom hyperlink ,with CFM_LINK . Now when I do a mouse hover on the link , a tooltip should be displayed , with values respective to the link . "I am using [Word2003] , but [Word2007] is the recent version. "...
I have previously used webdav to access the sent messages on an exchange 2003 server based on the subject and time and this has worked. I now need to implement another feature which means dragging a message from client outlook (not web access) on to a windows form then querying webdav on exchange to get all the information about this me...
I am attempting to call into a native .dll from c# using p/invoke. I'm able to make the call (no crash, the function returns a value), but the return code indicates "A pointer parameter does not point to accessible memory." I've resorted to trial and error in order to solve this, but I haven't made any progress so far. Here's the sig...
I'm building a webapp that needs to interact with a Access Database. The Access database is about 200 megs and I don't want to upload the entire thing...just the contents of one table. So far, I've used Microsoft.Office.Interop.Access in the past on a desktop app but when I tried this on a webapp there is some cryptic permission issues...
I am currently building a C++ application that communicate via socket to a C# application. My C++ app sends wchar_t* via socket. Here is an overview of what is send : <!-- Normal xml file-- Here is what I receive on the other side (I do a stream.read to a byte array and use UTF8Encoding.GetString() to convert the byte array to a read...
I am calling into a native dll from C#. For the specific function in question, one of the parameters I need is a structure which contains a doubly-indirect field (pointer to a pointer). For example, take the following C prototype and structs: int someFunc(SomeStruct* result); struct SomeStruct { DWORD foo; AnotherStruct** p...
Apologies for duplicate posting. Hi I am having trouble marshalling a linked list from a DLL. ------C++ Structure and Function-------- struct localeInfo { WCHAR countryName[BUFFER_SIZE]; WCHAR localeName[BUFFER_SIZE]; localeInfo *next; } int GetSystemLocales(localeInfo **ppList); -----------C# Declarations----------- ...
COM objects usually have deterministic destruction: they are freed when the last reference is released. How is this handled in C# - COM Interop? The classes don't implement IDisposable, so I see no way to trigger an explicit IUnknown::Release. A casual test shows that unreferenced COM objects get collected lazily (i.e. the garbage col...
Hi, I'm having trouble with a .NET Assembly that is com visible, and calling certain methods from VB6. What I have found is that if the parameters are well defined types, (e.g. string), calls work fine. If they are higher level objects, it raises a runtime error '438' suggesting that the property or method is not present. I suspect tha...
I wrote an assembly in C# and I needed to invoke a method on the DLL from a VB6.0 application. I made the DLL COM compliant and registered the DLL accordingly. From my VB application I would then instantiate the class in the .NET assembly using the VB6.0 CreateObject method. Set dotNetObj = CreateObject("Namespace.ClassName") I would ...
Has anyone been able to solve the airspace issues when trying to play a flash (swf) movie in a WPF application? I've been able to play the swf file using a WinForms control and a WindowsFormsHost element, and also using the WebBrowser element - but both have the airspace issues. ...
I'm calling the SQLDMO 8.0 COM library from VB.NET (using a PIA I generated with tlbimp) in order to backup a database with percentage completion notification: Dim server As SQLDMO.SQLServer = Nothing Dim backup As SQLDMO.Backup = Nothing Dim restore As SQLDMO.Restore = Nothing Dim backupAbortable As Boolean Dim restoreAbortable As Bool...
Hi I have a serious issue. I am using excel object for opening the excel file it works fine i my PC. when i make application as a website and running the page and uploading it gives the error "'C:\Documents and Settings\Administrator\Desktop\Work\SABRE MSO Mapping Request Template.xlsx' could not be found. Check the spelling of the file ...
I want repeat sent windows messages to my winforms application. Now, I have class implementing "IMessageFilter" which saves the selected messages (WM _KEYDOWN, WM _LBUTTONDOWN, etc...) to the list. On key "Pause/Break" I copy the list of messages, clear original list, and resend the messages. In my test project is only one form with on...
I've just spotted the following page: Setting Conditional Formatting in Excel 2007 which is very similar to something I'd like to do, but I can't seem to find appropriate functions to do something slightly different. I'm wondering if anyone knows a way to apply conditional formatting to a range, based upon a set of textual values. E.g. ...
I have an application that is written in C# I want to display a list of COM components in a folder on the system with details about the component, initially the ProgID. Is there a way of interrogating a component from my C# code to find out the details at runtime. ...
I'm attempting to write a C# managed class to wrap SHGetKnownFolderPath, so far it works on Vista, but crashes on XP due to not finding the proper function in shell32.dll, as expected. I want to have it set so I can fallback on a (admittedly hacky) solution using System.Environment.GetFolderPath if using XP. (Or, even better, if it can'...
I have a C++ DLL that needs to call a function (pass a value, return a value) in a C# class library. Is my only option to give the C# DLL a COM interface and call it from C++ with IDispatch? Is this the best method? ...
Does anyone know if a site (even non-Microsoft), that has details on COMExceptions/HRESULTS. When I attempted to Save my Excel Workbook after using the Copy() function, I received this error: ERROR - Unable to SaveWorkbook() System.Runtime.InteropServices.COMException (0x800A03EC): Document not saved. P.S. I'm doing this in a tight ...
Hey all, I have C# method that returns a byte array I want to be able to access from VBScript. More or less: namespace ClassLibrary7 { [ClassInterface(ClassInterfaceType.AutoDual)] [Guid("63A77D29-DB8C-4733-91B6-3CC9C2D1340E")] [ComVisible(true)] public class Class1 { public void Create( out byte...