midl

问题 I've implemented a windows deskband (using the windows SDK sample) and need a way to communicate (one call to start IPC with another application, IPC is already working) with it. My COM experience is very limited but extrapolating from what I've seen, I think it should be possible to create a new COM interface, implement it in the deskband object (which I have access to via IBandSite), call QueryInterface() for my own interface on it and then use it to call directly into the deskband. I've

问题 I have been having a prolonged encounter with the beast known as COM Interop... I am currently trying to generate a .tlb from a .idl file generated by the OLE/COM Object Viewer. However when trying to run Midl.exe to compile it I get an error: .\Sim.API.IDL(236) : error MIDL2025 : syntax error : expecting a type s pecification near "ImportFileStatus" My .idl file is more that 1000 lines long so I don't particularly want to post it here however, I believe the Part of interest is: typedef [uuid

问题 I have a .dll that contains some directshow filters (COM) with specific/custom interfaces to query. Most 3rd party directshow components contain embedded .tlb files that can be used for cross-enviroment communication (C# typelib import). I would hate to have to attempt to manually create the interfaces needed for c# because no idl/tlb files were provided. Is it possible to generate a tlb (or at least, an idl, which I can MIDL compile) from a COM .dll? 回答1: Yes, it is possible to reverse

问题 A WinMD is a binary medadata file, that contains everything you need to learn about namespaces, types, classes, methods, parameters available in a native WinRT dll. From Windows Runtime design : The Windows Runtime is exposed using API metadata (.winmd files). This is the same format used by the .NET framework (Ecma-335). The underlying binary contract makes it easy for you to access the Windows Runtime APIs directly in the development language of your choice. Each .winmd file exposes one or

问题 I am attempting to create a C# inproc server for sbtsv.idl (it is included with the Windows 8 SDK). Almost every instructions I find tell you to use MIDL to create a .tlb file then tlbimport to create the proxy dll. However, if the IDL does not include a library section no .tlb file will be generated, and sbtsv.idl does not include a library section. I tried creating my own IDL file that declared the interface I wanted to create inside a library #include "C:\Program Files (x86)\Microsoft SDKs

问题 Reviewing our code I've found a curious definition in one of .idl files: [ object, uuid(uuidhere), dual, nonextensible, oleautomation, hidden ] interface IOurInterface : IUnknown { //methods here }; How can an interface derived directly from IUnknown possibly be a dual interface? Will anything break if I remove the dual attribute? 回答1: In this answer to another question concerning marshaling user voyce points to this article that basically states the following: When any interface (IDispatch

问题 Reviewing our code I've found a curious definition in one of .idl files: [ object, uuid(uuidhere), dual, nonextensible, oleautomation, hidden ] interface IOurInterface : IUnknown { //methods here }; How can an interface derived directly from IUnknown possibly be a dual interface? Will anything break if I remove the dual attribute? 回答1: In this answer to another question concerning marshaling user voyce points to this article that basically states the following: When any interface (IDispatch

问题 Are there no constant references in MIDL method declarations???? eg. [id(1), helpstring("My Method")] HRESULT MyMethod( [in] IID & const rclsid ); for HRESULT MyMethod( IID const &rclsid ); 回答1: MIDL doesn't really support reference parameters, it only supports "in" and "out" parameters. So if you DO pass in a reference, it's just syntactic sugar for a pointer to the value (the issue is observability - if you have a callback function or interface in our method signature, changes to a

问题 I am trying to get C header files for COM interfaces using OLE/COM object viewer. I have tries to save type library as header file in object viewer, however, after a cmd window flashes, nothing happens. I have tried to save it as IDL file and convert to header file myself using this command; midl /out C:\temp /header EXCEL.h EXCEL.IDL However, I am getting this error: Microsoft (R) 32b/64b MIDL Compiler Version 7.00.0555 Copyright (c) Microsoft Corporation. All rights reserved. 64 bit

问题 Firstly, Using plain C++, without ATL, MFC attempting to use COM Object interface. Using oleview (OLE/COM Object viewer) - used to engineer the IDL code. At this stage, using MIDL Compiler, now I'm having trouble trying to produce the following: Syntax on cmd line: midl /nologo /env win32 /tlb ".\S8_.tlb" /h ".\S8_.h" /iid ".\S8_i.c" S8.idl A corresponding .TLB (Type Library) A .H (header) An IID definitions include file (*_i.c) A proxy (*_p.c) MIDL compiler error: S8.IDL(513) : error