How To capture particular window instead of total desktop?
I have captured total desktop using CPP, COM and DirectShow. But how can I capture particular window only? ...
com
Unable to out/retval parameter in COM interface method in VC++ 2008
Hi, I want to create a simple COM component in VC++ 2008. I have created ATL Project with all default options. I have added Simple ATL object (interface IDemo). Now I want to add a methos inside IDemo. But the "Add Method Wizard" does not allow me to add out/retval type of parameters to the method. I can add in type of parameters. Is i...
Ms Word 12.0 Class Library
Where to get the list of dlls present in microsoft word 12.0 . Can we download microsoft word 12.0 Component seperately and install it in the client system? ...
Using MFC classes inside ATL Project
Hi, I have created an ATL Project with all default options using VC++ 2008. I have added Simple ATL object (interface IDemo) and some interface moethos inside the simple object. I want to use MFC classes (e.g. CDatabase, CRecordset and lots more) inside my ATL project. How can I achieve this? Thanks. ...
How to create a Word document from a Silverlight 4 application?
I'm looking for some options to programmatically create a Word document from within a Silverlight 4 application. I found two approaches which seemed promising at first but don't look like they will work. OpenXML SDK The OpenXML SDK isn't available for Silverlight at this time. Word Automation via COM Interop dynamic wordApplication =...
Why does CoUninitialize cause an error on exit?
I'm working on a C++ application to read some data from an Excel file. I've got it working, but I'm confused about one part. Here's the code (simplified to read only the first cell). //Mostly copied from http://www.codeproject.com/KB/wtl/WTLExcel.aspx #import "c:\Program Files\Common Files\Microsoft Shared\OFFICE11\MSO.DLL" #import "c:...
How to debug nondeterministic access violation crash?
Our C#/COM/C++ application is crashing and I need help debugging it. Running with gflags enabled and WinDbg attached, we determined the crashes are caused by an access violation, but we haven't been able to narrow it down any more than that. We are not seeing the issue on all machines; there are a couple of machines that seem to reproduc...
The application called an interface that was marshalled for a different thread
i'm writing a delphi app that communicates with excel. one thing i noticed is that if i call the Save method on the Excel workbook object, it can appear to hang because excel has a dialog box open for the user. i'm using the late binding. i'd like for my app to be able to notice when Save takes several seconds and then take some kind ...
How to free member (i.e BSTR, SAFEARRAY, VARIANT) of an IDL User Defined Structure which is encapsulated in a VARIANT?
Hi, I have a structure defined in IDL. This structure has following members: { BSTR m_sFirst; BSTR m_sSecond; VARIANT m_vChildStruct; //This member encapsulate a sub structure SAFEARRAY __RPC_FAR * m_saArray; }CustomINFO; I am allocating the memory for the structs using CoTaskMemAlloc and encapsulating it in Varian...
How to run a COM .dll on a remote server?
I have a legacy 3rd party COM .dll that is used to provide an Excel-callable interface to a proprietary database product. The .dll runs on the same physical machine as Excel. I have a need to execute the .dll (and the database it is calling) on a remote server while still maintaining simple Excel callability from the client. I'm total...
What does COM Error 80010105 mean and where to find other codes?
Is there a list of COM error codes somewhere? Related: http://stackoverflow.com/questions/973206/hresult-0x80010105-rpc-e-serverfault-question ...
InvalidCastException Object[*] to Object[]
I have a COM object written in Visual Fox Pro 9.0. It has the following procedure: PROCEDURE GetArray(m.vcArrayName as String) as array RETURN @&vcArrayName The COM object is referenced in a VS2010 project using C#. The signature of the procedure in C# is: object GetArray(string vcArrayName); When debugging I can see that the r...
Upgrading App from .NET 3.5 to 4.0, COM fails now
Hello, I have an application that I am upgrading from the .NET 3.5 to the .NET 4.0 framework. It uses a COM library which is referenced. It works no problem in 3.5 but after converting to 4.0 I have issues getting the COM to work. The COM is from a 3rd party so we didn't develop it ourselves. I get the following COM error (generic COM ...
Strange error message when closing WinForms App
We have an Windows Forms application which make use of some com components such as the web browser control and an API for a signature pad. When the application is closed, sometimes an error dialog is shown with the following text: "sw: myapp.exe - Error in Application" The text was like this: The instruction xyz caused an illegal acce...
Member variable pointers to COM objects
Hi Folks, Is there any problem with keeping member variable pointer refernces to COM objects and reussing the reference through out the class in C++. Is anybody aware of a reason why you would want to call .CreateInstance every time you wanted a to use the COM object i.e. you were getting a fresh instance each time. I cannot see any re...
C++ setTimout function ?
What's the cheapest way for a JavaScript like setTimeout-function in C++? I would need this: 5000 miliseconds from now, start function xy (no parameters, no return value). The reason for this is I need to initialize COM for text to speech, but when I do it on dll attach, it crashes. It works fine however if I do not call CoInitialize...
WCF wrapper COM object
I have a third party COM component (they don't offer a .Net assy), that has the additional feature that it only works under x86 compile. I am trying to wrap this in a WCF service, but if I select x86, the service won't start (System.BadImageFormatException). Any workarounds for this ? Thanks Larry ...
How to check whether a PE file (DLL,EXE) is a COM component?
I need to write a stub module which, when given a PE (DLL/EXE) as input, will determine whether it is a normal Win32 DLL/EXE or COM DLL/EXE. I need to determine this programatically. Are there any Windows APIs for this purpose? ...
Can't use FAXCOMEXLib in VS 2010 anymore?
I'm just in the process of moving from Visual Studio 2008 to Visual Studio 2010. One of my projects use the Microsoft Fax Service Extended COM Type Library. After converting the project to VS 2010 I get the following compiler error: C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.Targets(1558,9): error MSB3648: The Keyco...
Sharing some info with all DLLs pulled into a process
Hi all, We've got an Enterprise system which has many processes (EXEs, services, DCOM servers, COM+ apps, ISAPI, MMC snapins) all of which make use of many COM components. We've recently seen failures in some of the customer deployments, but are finding it hard to troubleshoot the cause. In order to track down the problem, we've augmen...