interop

问题 Is there a good thorough authoritative reference that discusses interoperability between 32-bit and 64-bit processes? Based on googling I have deduced that: A 32-bit DLL can only reside in a 32-bit process, and a 64-bit DLL only in a 64-bit process. 32 and 64-bit processes can only communicate using loosely coupled message systems, such as network communications, which means they can communicate using COM/DCOM. 32 and 64-bit COM components have different registry entries. A component is

问题 Is there a way to determine if an open WPF window is currently visible in any of the desktop's connected monitors? By visible I mean that the window's bounds rectangle intersects with the desktop rectangle of any of the monitors. I need this functionality to determine if a window needs to be repositioned because the monitor configuration (working areas bounds, monitor count) changed between restarts of my application (which saves window positions). I have come up with the code below and it

问题 All of these questions: Excel 2007 Hangs When Closing via .NET How to properly clean up Excel interop objects in C# How to properly clean up interop objects in C# struggle with the problem that C# does not release the Excel COM objects properly after using them. There are mainly two directions of working around this issue: Kill the Excel process when Excel is not used anymore. Take care to explicitly assign each COM object used to a variable first and to guarantee that eventually, Marshal

问题 I'm primarily a C# dev (not much C++ since college), but working on integrating a large collection of existing C++ code into an application. I have a C++/CLI assembly that is buffering the two worlds and have communication from C# through to C++ working fine. The question I have, is that the C++ class has a method call that generates a binary blob (think array of byte s in C# world) that I need to get in C# and process (pass around like a solid bag). What I'm looking for is advice on how to

问题 I have a .NET dll which has some interfaces\classes which are exposed to com. during the build procedure a .tlb file is generated and this tlb is referenced by some c++ code. As a result the compiler generates a .tlh file for the tlb. When I run the build locally one of the properties in one of the interfaces ends up with a corresponding method in the tlh which does not have the same name. The property in the .net code is called PropertyA end up being called get_propertyA, while PropertyB

问题 I have a C++ application. This supports users' C++ plugin DLL's, it will dynamically load these DLL's and then be able to create and use the user's types dynamically. These user types derive from base types and interfaces defined in the main application's core library, so I hold user's objects as pointers to the base class and call the user's virtual functions to make their magic happen. Now I want to extend the plugin DLL's to allow managed DLL's (I care about C# mostly). I want all of the

问题 I have an out-of-process COM server written in C++, which is called by some C# client code. A method on one of the server's interfaces returns a large BSTR to the client, and I suspect that this is causing a memory leak. The code works, but I am looking for help with marshalling-out BSTRs. Simplifying a bit, the IDL for the server method is HRESULT ProcessRequest([in] BSTR request, [out] BSTR* pResponse); and the implementation looks like: HRESULT MyClass::ProcessRequest(BSTR request, BSTR*

问题 I'm having massive problems when trying to update a chart through MSWord interop. All I want to do is set the values on a chart in a word document so the graph can update to values in my app. I've done the following (after importing Microsoft.Office.Interop.Graph.dll): InlineShape chartShape = WordDocument.InlineShapes[2]; chartShape.Activate(); // for opening Chart in edit mode // Convert the InlineShape into Chart type which is a part of Microsoft.Office.Interop.Graph Microsoft.Office

问题 Not sure where to start with this one ... I'm thinking about creating a small little application to automate some repetitive text entry. I would like to be able to define snippets of text, and inject them into other applications when I want. What would be the best way to approach this problem? I have stumbled across UI Automation, as well as SendKeys. Any suggestions? I don't mind if I have to "point out" the input controls for the application (like how Mac's native screenshot tool asks you

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: VB6 equivalent to a List<T> Duplicate of: Access VBA equivalent to a List<T> I posted this question with the wrong information before, so I am reposting it in the hopes of getting a correct answer. I have a COM-visible object written in C# that accepts a list of string arrays. Could I send a Collection of string arrays from Access 2000 to this object and it work? If not, then what is the best way to send