com

问题 I am writing a C# object that I need to be able to access from a javascript application. var util = new ActiveXObject('Namespace.Class'); However, when I attempt to create the object I get an error saying, "Exception: Automation server can't create object." I have registered the object for COM interop and the assembly is signed. NOTE: This is NOT a webpage and is NOT being run in the browser. I am able to create other COM objects in this same way, so my security settings are already set, and

问题 I am attempting to write a program that utilizes a ComboBox to display currently connected COM ports obtained from the following method: System.IO.Ports.SerialPort.GetPortNames() The idea is to initialize a thread that checks the currently available COM ports every second, and update the ComboBox accordingly. Despite my best efforts, I can't get it to work. The code to update the ComboBox's contents is the following: private void Form1_Load(object sender, EventArgs e) { availPorts = new

问题 I am working on a COM API written in C++ with ATL, which clients will be expected to use in C# via it's COM interop facilities. Currently all the COM objects are only written to support the single threaded apartment model. Some of the functions of this API cause a separate worker thread to be spawned, which listens for events from a server. In response to events from the server this worker thread creates some fairly simple COM objects, and then passes these objects to a COM event. There are

问题 I have a Windows Control Library project (visual studio 2010). I put in the compile tab for it to be a com element (I use it as an addin for another program). My question is the following: I have a .cvs file in my resources that I use to parse some main settings. The line of code that reads this file gives an error when I run the addin. code line: dim reader as new streamReader(My.Resources.standards) (the file is called standards) error I get when running the com element: Illegal character

问题 My D5 application is on a server being used remotely by a couple of users, so I need use the following function to create a COM object to launch another application (LmPos) installed back on that users PC upon launch: CreateRemoteComObject(const MachineName: WideString; const ClassID: TGUID): IUnknown; rather than creating a local COM object as before: EposServer := CreateOLEObject('POS.Server'); However, the MachineName and ClassID to connect to will depend on which users is launching this

问题 I am working with two ATL-based COM projects. The both implement DllRegisterServer as just STDAPI DllRegisterServer(void) { // registers object, typelib and all interfaces in typelib return _Module.RegisterServer(TRUE); } which ends up calling ::RegisterTypeLib(pTypeLib, bstrPath, szDir); in atlbase.h:6516. But for some reason this call makes one of the projects create HKEY_CLASSES_ROOT\TypeLib\<guid>\<version>\0\win64 when registered using regsvr32.exe on Windows 7 32 bit. The other project

问题 I am trying to access the document of an internet explorer com object with windows 2012. The code works great in windows 2008 but as soon as I try to run it on windows 2012 (fresh install, tried on more than one server), the same code stops working. In other words, $ie.document.documentHtml returns as null. Below is the code: $ie = new-object -com "InternetExplorer.Application" $ie.navigate2("http://www.example.com/") while($ie.busy) {start-sleep 1} $ie.document.documentHtml.innerhtml Has the

问题 I am trying to access the document of an internet explorer com object with windows 2012. The code works great in windows 2008 but as soon as I try to run it on windows 2012 (fresh install, tried on more than one server), the same code stops working. In other words, $ie.document.documentHtml returns as null. Below is the code: $ie = new-object -com "InternetExplorer.Application" $ie.navigate2("http://www.example.com/") while($ie.busy) {start-sleep 1} $ie.document.documentHtml.innerhtml Has the

问题 I need to do the following: Application "AppA" is run by user "UserA" Now AppA starts AppB using the runas-command (it is started as UserB) Is it now possible to let AppA control AppB via COM? While everything works fine without the different user accounts, I can't seem to get the COM object in the case mentioned above. By the way: I use Runtime.InteropServices.Marshal.GetActiveObject to get the COM object of AppB. Any ideas? Thanks! 回答1: I think you need to set the DCOM Security on the

问题 Maybe the worst type of error message that one can see. Does not mean anything, may be related to everything... I try to create a web service (WS) on IIS 7.5 (I have initially tried WCF services but same story) The WS uses a COM DLL which is successfully registered and the COM security permissions are given. When I run the WS using Visual Studio Development Server everything is fine, I get the results as requested. But when I try to deploy the WS to IIS, I end up with System.Runtime