Hello I have created the ATL COM Server C++ project using Visual Studio 2005 wizard. I added a new COM class using the ATL Simple Object wizard. Now when I try to create this COM class instance from my server (calling CoCreateInstance within the ATL server) I get CO_E_SERVER_EXEC_FAILURE error from CoCreateInstance. When I try to create...
I am writing an class using C++ (ATL).. I need to connect to a database. I am familiar with ADO but I see that all the functions are using IDispatch (late-binding/Automation). I am considering using OLEDB instead. What are the pros and cons of each? OLEDB seems like a lot of maintenance if the sql changes (tables, stored procs, etc). I d...
I have a COM function that should return a SafeArray via a LPSAFEARRAY* out parameter. The function creates the SafeArray using ATL's CComSafeArray template class. My naive implementation uses CComSafeArray<T>::Detach() in order to move ownership from the local variable to the output parameter: void foo(LPSAFEARRAY* psa) { CComSafeA...
I'm trying to create a simple ATL control based on a ComboBox under VS2008. So, I create a new ATL Project using the ATL Project Wizard, then add an ATL Control to the project using the ATL Control Wizard. I use all of the default settings except that I tell the wizard to base my control on ComboBox. The wizard does its thing and generat...
I'm looking at this, where m_Rows is a CAtlList: void CData::RemoveAll() { size_t cItems = m_Rows.GetCount(); POSITION Pos = m_Rows.GetHeadPosition(); while(Pos != 0) { CItem* pItem = m_Rows.GetAt(Pos); if (pItem != 0) delete pItem; POSITION RemoveablePos = Pos; pItem = m_Ro...
Hi, I'm trying to implement a shell extension that extends IContextMenu3 and IShellExtInit, and i'm inserting menu items using the method described in section "HBMMENU_CALLBACK method" (http://www.nanoant.com/programming/themed-menus-icons-a-complete-vista-xp-solution) but in my project the method HandleMenuMsg2 or the HandleMenuMsg is...
I've got an ATL class: class Foo : public CComObjectRootEx<CComMultiThreadModel>, public CComCoClass<Foo, &CLSID_Foo>, public IPlugin, public IEventSubscriber { // ... }; I need to pass it to another object, like this: pOther->MethodTakingIUnknown(this); When I do this, I get the following error message: error ...
Hello, I would like to know how one can add a .NET C# COM object (created using the COM Interop facility of .NET) to a Visual Studio 2008 ATL EXE Server. Basically, I am trying to create an out of process Automation server to hold my C# COM object to allow it to act as a Singleton server for many clients. I think all I need to do is add...
I have an ActiveX control written in C++ that I created with VS2008 and ATL. For the most part, it is a pretty standard (not modified much from the original template) control, except that instead of using IDispatchImpl, I have created my own IDispatchEx implementation. This control is only used in Internet Explorer, and I have been tes...
I was trying to "just quickly integrate" the Windows Media Player via COM to play single files from the local file system or http sources - but due to the sparse documentation and online resources to its usage when not embedding into some kind of an Ole container, i couldn't get that supposedly trivial use-case to work. Initialization e...
Hello, My questions regards DCOM servers and windows sessions: I have a windows service, running in win 2008 platform. on some scenarios, this service has to show some UI (Open a window). Despite the ugly design , it is the service it self that has to trigger the window opening. In order to do so, i have a DCOM server that is created ...
Hello! There is the function GetLinksFromPage. She have created a links array, then I wanna pass that array to COM-object (only URLs), thus I have to convert CAtlArray< CComPtr< IDispatch> > to CComSafeArray< BSTR>. How I can do it ? HRESULT myclass::GetLinksFromPage( const CComPtr<IHTMLDocument2>& pDoc, CAtlArray<CComPtr<IDispatch> > &...
I am using Visual Studio 2008 and I have created an ATL Project. I have aded a ATL Simple Object to the project. I want to add my object to the Global Interface Table when the object is created, so I have the following code in my FinalConstruct call: HRESULT res; res = CoCreateInstance(GLSID_StdGlobalInterfaceTable, NULL, CLSCTX_INPRO...
I have an application which runs using the context menu of windows explorer. I create an ATL based DLL and register it to Windows Registry under HKCR\AllFileSystemObjects\ShellEx\ContextMenuHandlers. I am able to run my application. I want coverage for my code present in the DLL which is being registered in the registry. I am currently ...
how to implement event sink to enable the developed application to listen to event made by this three browsers: Internet explorer, mozilla firefox and google chrome? the application is a stand-alone application running in a network.. thanks!^^ ...
I have a WTL application that uses an extended combobox control (the Win32 class ComboBoxEx32) with the CBS_DROPDOWNLIST style. It works well (I can have images against each item in the box) but the keyboard behaviour is different to a normal combobox - pressing a key will not jump to the first item in the combo that starts with that le...
I need to convert a CString instance into a properly allocated BSTR and pass that BSTR into a COM method. To have code that compiles and works indentically for both ANSI and Unicode I use CString::AllocSysString() to convert whatever format CString to a Unicode BSTR. Since noone owns the returned BSTR I need to take care of it and relea...
I see this problem in follwing scnerio: The activex control is created with Extent 0,0(so it is not visible in IE). Then the user clicks on a html button which has the following pseudo code: Find the object; Object.display = “visibile”; In my corresponding put_display what executes is something like this: Rect rect = //New sized posi...
I'm using Visual Studio to debug an ATL application. When I step over return TRUE in this code, the error occurs: BOOL CMainFrame::OnCopyData(CWnd* pWnd, COPYDATASTRUCT* pCopyDataStruct) { // Code snipped from here - maybe this causes stack/heap corruption? // I have a breakpoint here, if I step over (F10), AFX trace message ...
Using ATL (VS2008) how can I enumerate the available methods available on a given IDispatch interface (IDispatch*)? I need to search for a method with a specific name and, once I have the DISPID, invoke the method (I know the parameters the method takes.) Ideally I would like to do this using smart COM pointers (CComPtr<>). Is this po...