ATL::CComVariant has a handful of assignment operators. What I see in the implementation is that in assignment operators accepting LPCOLESTR, IUnknown* or IDispatch* the first action is to call Clear(). If the operator in invoked in such a way that a member variable of the same object is passed CComVariant variant; variant = L"string...
I'm trying to use PHP COM to save docx files as html using Word. I am using a Windows installation with apache 2.2.x and PHP5. Office 2007 is installed. Using the following code to list fileconverters: $word = new COM('word.application') or die('Unable to instantiate word.'); foreach($word->FileConverters as $converter) { var_dump(...
I need to check programatically whether a given EXE binary is a COM EXE or Win32 EXE. Is there any way to do this? Is the Import Table an answer to this? If somehow I can determine this from the registry, where in the registry should I look to find out if a binary is regsitered for COM? (This is specific to EXEs, as DLLs are not a proble...
Hello, Is there any attribute or property or method available in type library which tells that whether given type library is in proc COM server or Out of proc COM server. Regards Usman ...
In Delphi, how do I find out the the address of a COM method? I can hardcode the offsets //0 is the offset of the QueryInterface method p := TPonterArray(pointer(SomeInterface)^)[0]; but I would prefer to use symbolic names. The folllowing obviously does not work: var M : TMethod; ... M := TMethod(SomeInterface.QueryInterface); Tha...
I have a large(ish) COM object that works as the back end of my PHP application. Every time i refresh the page, PHP creates a new object of the COM interface. This is however slow. Is there any way to serialize/cache the COM object so that I can access the already initialized object? Or is there maybe some other workaround. I would also...
What is the best way to debug a namespace extension using Visual Studio? It's not convenient to use regsvr32 to register and unregister the extension and to restart the Explorer for each and every build. Attaching the debugger to the extension would be a nice benefit. Is there a simple way to debug a namespace extension using Visual Stu...
I am getting following error: "COM object that has been separated from its underlying RCW cannot be used." I am sure the problem is because COM object is being called not on the thread it has been created - STA. I tried to implement IDisposable but it has not worked for me. There is a couple of posts dealing with similar problem but ...
I'm implementing dragging a virtual file out of a website and onto the desktop with an activex control. How do I create an IStream on my http url, so Windows can execute the drop? The example I'm looking at uses SHCreateStreamOnFile to copy a local file; there must be an analogous function for other types of streams like http file dow...
Hello all, I'm looking to a way to connect a COM+ legacy application to a WCF Service, i have been researching this since a couple of days and i haven been lucky to find any useful information, can anyone point me into the right direction on this? I Need the old COM+ component to make calls to a new C# WCF Service so I Need some kind of...
I wanted to know whether is it possible to make use of COM component in other platforms like linux,etc.., My question is that COM component is supposed to be registered with OS & For that OS need something like registry so that client can use COM components. Can anyone shed light on my question ? ...
What is COM..?/ ...
Where I'm stuck is the right parameter syntax to instantiate an object using PHP's com() and dotnet() classes to load .net assemblies, windows system applications and components beyond the usual MS Office apps. If successfully created, working with the objects isn't an issue here. Can anyone explain what each part of each parameter mea...
I have this old C++ COM component. I took the latest code base, built it and found that one of the properties has become lower case. For example, in the pre-compiled dll i have a property "Type", but when building from source it's called "type". The idl shows that the property is called "Type". So what could possibly be happening her...
Suppose I open a new Internet Explorer window by, for example, clicking a link with target="_blank" in the HTML link. Further suppose I'm doing so programmatically via COM. I realize I can attach to the DWebBrowserEvents2::NewWindow3 event, and be notified when a new window will be opened. How do I get a reference to that newly opened wi...
How do I extract all the images from a PowerPoint file programatically using COM? ...
I have a .net Console application that uses a COM component to generate PDF. Basically it prints the input document as PDF and is configured as a printer in the Desktop. Now, this component is singleton by design and does not support multiple instances. My application works fine if this process is not already running. However, if an i...
Assume I have a class implementing two or more COM interfaces (exactly as here): class CMyClass : public IInterface1, public IInterface2 { }; QueryInterface() must return the same pointer for each request of the same interface (it needs an explicit upcast for proper pointer adjustment): if( iid == __uuidof( IUnknown ) ) { *ppv ...
Java programmer in a COM world, apologies in advance if the terminology isn't quite right. My Java app is going to receive a message from a COM component written by some folks who are COM developers. They want to include in the message some Principal information. On the basis of that information I'm going to make an authorisation decisi...
Is it possible to get list of all existing accounts from Outlook 2003 using only standard COM? It means I can't use Redemption library, but only default Outlook 2003 object model . It's much easy to get accounts at Outlook 2007/2010: dynamic outlook = AutomationFactory.GetObject("Outlook.Application"); var accounts = outlook.Session.Ac...