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Re: Register browser helper object conman11021-Oct-07 22:28 conman110 21-Oct-07 22:28  Thank you Sohail, you gave me the information I needed! Best regards! Constantin Re: Register browser helper object User 21559722-Oct-07 1:19 User 215597 22-Oct-07 1:19  Glad I could help Sohail modified 21-Apr-21 21:01pm. COM Catharin18-Oct-07 1:09 Catharin 18-Oct-07 1:09  When i executed VC++6.0 project(MFC and ATL application) i encountered an error message "COM Error: 0x80040154" . Q. What the error means and how it can be solved? Re: COM User 21559718-Oct-07 6:00 User 215597 18-Oct-07 6:00  Catharin wrote: COM Error: 0x80040154 Corresponds to REGDB_E_CLASSNOTREG. Quoting from MSDN, REGDB_E_CLASSNOTREG A specified class is not registered in the registration database. Also can indicate that the type of server you requested in the CLSCTX enumeration is not registered or the values for the server types in the registry are corrupt. Sohail modified 21-Apr-21 21:01pm. Re: COM Catharin19-Oct-07 1:16 Catharin 19-Oct-07 1:16  What all steps are needed for solving the above scenario? Re: COM [modified] User 21559719-Oct-07 5:25 User 215597 19-Oct-07 5:25  Catharin, Check if the COM server is registered on your machine. If it's not, then register it. Also you will need to explain a bit more about what code fails. Sohail modified 21-Apr-21 21:01pm. Re: COM User 21559721-Oct-07 22:39 User 215597 21-Oct-07 22:39  Catharin, Is the problem resolved? Sohail modified 21-Apr-21 21:01pm. Re: COM Catharin22-Oct-07 0:02 Catharin 22-Oct-07 0:02  Sohail, Not yet solved. Let me explain the current situation. I created a sample C# class library project. The code is listed below: COMServer: using System; using System.Runtime.InteropServices; namespace MyComServer { public delegate void MyComEventHandler(); // Step 1: Defines an event sink interface to be implemented by the COM sink. <Guid({16FA6CC7-E2B9-4326-9D4F-ADBAADA6627D})] [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIDispatch)] public interface IMyComEvents { [DispId(1)] void myComEvent(); } // Step 2: Connects the event sink interface to a class by passing the namespace and event sink interface [ComSourceInterfaces(typeof(MyComServer.IMyComEvents))] public class MyComCls { public event MyComEventHandler myComEvent; public MyComCls() {} public void raiseMyComEvent() { this.myComEvent(); } } } Then the DLL file named MyComServer is registered using the following command regasm MyComServer.dll /tlb:MyComServer.tlb then after giving a Strong Name [sn -k MyComServer.snk] the DLL file is registered into the global assembly using the command gacutil -i MyComServer.dll COMClient: For the client application I used VC++ 6 MFC wizard[exe] and a simple dialog object. I imported the MyComServer.tlb into stdafx.h file and all supporting header files. Also done event sinking. After all those process i executed the MFC application. Then i encountered COM Error: 0x80040154 Class Not Registered. Also is there any other option to invoke the events written in the class library? Cathrin Re: COM [modified] User 21559722-Oct-07 1:04 User 215597 22-Oct-07 1:04  Are you missing [ComVisible(true)] attribute for your COM coclass? -- modified at 7:16 Monday 22nd October, 2007 What is your VC++ client code for creating the object? Sohail modified 21-Apr-21 21:01pm. Re: COM Catharin22-Oct-07 2:00 Catharin 22-Oct-07 2:00  Yes, [ComVisible(true)] attribute in .NET Class Library (AssemblyInfo.cs). Re: COM User 21559722-Oct-07 2:36 User 215597 22-Oct-07 2:36  Catharin wrote: Yes, [ComVisible(true)] attribute in .NET Class Library (AssemblyInfo.cs) So COMVisible(true) is present for the coclass you are instantiating from your VC++ client? Can you tell me which part of your code fails with the HRESULT value you mentioned? Sohail modified 21-Apr-21 21:01pm. How to get Close event of WORD? (COM) PhanMinhDuy17-Oct-07 20:52 PhanMinhDuy 17-Oct-07 20:52  I am writing a plug-in which have a function call WORD and then get text from WORD. So, I must get Close event of WORD so that I could get the text from WORD. I created a CWordSinkEvent class to get the event. When WORD is closed, function OnWordClose() is called. But I was not allowed to call this function from my plug-in because this function is : afx_msg void OnWordClose(). I want my plug-in wait until it receive the Close event of WORD and get the text from WORD. Please help me with any solution as well. Thank you so much. COM interfaces DanyCode17-Oct-07 9:37 DanyCode 17-Oct-07 9:37  Hi! I've this problem.I've to do a in process COM server in C++;the server has to send in real time as fast as possible a vector of six elements produced by a stand alone application (written in C++) to a MATLAB client. MATLAB client can't read the new value of vector untill the application does not write new one. Can you suggest me a possible solution? Thanks. DanyCode COM Catharin16-Oct-07 0:09 Catharin 16-Oct-07 0:09  How to call events written in C#.NET within VC++ 6.0? please post a reply as soon as possible. Re: COM [modified] User 21559716-Oct-07 6:14 User 215597 16-Oct-07 6:14  Catharin, Clients don't call events. Events are raised from within the component and handles by the client. In your case C# .NET component will raise events. If you are looking for how to call a method on .NET Component, see the link below Exposing .NET Framework Components to COM[^] See if the link below helps - How to: Raise Events Handled by a COM Sink[^] COM Interop: Really Raising Events Handled by a COM Sink - Check sample code[^] Sohail modified 21-Apr-21 21:01pm. Re: COM Catharin16-Oct-07 23:53 Catharin 16-Oct-07 23:53  Thank you for a fast response Windows Media Player Control SonicMouse13-Oct-07 12:22 SonicMouse 13-Oct-07 12:22  Hello all... I have looked high and low online for an answer and nothing comes up. I am using the Windows Media Player control in my app (language: C++ via MFC 4.2). What i need is to get access to the IWMPVideoCtrl interface so i can have the ablilty to alter the "stretchToFit" and "maintainAspectRatio" properties. Is there a trick to doing this? I do have a reference to the IWMPPlayer interface, but, there is no method where i can pass in and get a reference to the IWMPVideoCtrl interface. Any ideas? Thanks... -andy. Re: Windows Media Player Control SonicMouse13-Oct-07 14:56 SonicMouse 13-Oct-07 14:56  After a bit of searching, i found the interface which supports setting "stretchToFit"... This property also forces "maintainAspectRatio", so this is the answer. I am posting this here incase anyone else runs into this problem. http://msdn2.microsoft.com/en-us/library/bb249119.aspx[^] When you have an IWMPPlayer interface created, you can call IWMPPlayer::QueryInterface() on an IWMPPlayer2 interface. This will add in the "stretchToFit" properties laying within the IWMPPlayer2 interface. -andy. Simple COM component Shaileshvb10-Oct-07 23:36 Shaileshvb 10-Oct-07 23:36  I have seen the COM from scratch...but still not getting......... I just want to create simple COM component......... shailesh Re: Simple COM component CPallini11-Oct-07 0:52 CPallini 11-Oct-07 0:52  Unfortunately it is difficult for a COM component to be 'simple', however, this book [^]. gives a good explanation of a basic COM component. Anyway, you can easily create a COM component project using the MFC or the ATL wizard. If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. Re: Simple COM component Michael Dunn14-Oct-07 15:02 Michael Dunn 14-Oct-07 15:02  Have you read my Intro to COM[^] articles? Part 2 shows how to write a COM server and shows how to call it. --Mike-- Visual C++ MVP LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ I work for Keyser Söze Is COM controls compatible with .NET vimal_q10-Oct-07 21:26 vimal_q 10-Oct-07 21:26  Can any one help me i am new commer to com . can we use com controls in .NET vimal Re: Is COM controls compatible with .NET CPallini10-Oct-07 21:57 CPallini 10-Oct-07 21:57  Yes, have a look at [^]. If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. step by step COM use Shaileshvb10-Oct-07 21:03 Shaileshvb 10-Oct-07 21:03  As I am new to COM I still unable to get the Life cycle of COM program...or flow of program... so I want the step by step program or step by step code with descripton to generate new COM component... shailesh Re: step by step COM use CPallini10-Oct-07 21:11 CPallini 10-Oct-07 21:11  There's the Jeff Glatt's very good article series here at CP, follow the link to the first article. If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.

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