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Shell context menu Ludwig Stuyck19-Nov-03 11:14 Ludwig Stuyck 19-Nov-03 11:14  Hi C#-people, I have a ListView, that contains directories and files. I was wondering how I can popup the context menu (which contains items such as 'open with', 'add to zip', 'Copy', 'Paste', etc...) if I right click on these files/directories. Can anyone point me in the right direction? Thanks! Kind regards Ludwig Re: Shell context menu Heath Stewart19-Nov-03 18:48 Heath Stewart 19-Nov-03 18:48  This is really not as easy as you might hope and - to do so in C# - will require recreating countless interfaces, enum, structs, and consts already defined in various headers for Win32 shell programming. See my answer to a somewhat similar problem to an early question today: http://www.codeproject.com/script/comments/forums.asp?msg=669971&forumid=1649#xx669971xx[^] While this isn't exactly what you're looking for, you're now going to have to play the part of the Windows shell and pass an ITEMIDLIST - which is going to be hard enough in an application that knows little about the actual shell - to a default context menu while accessing the registry to query for other context menu handlers for the associated file type. I give several links in that previous post. You should read the documentation at the targets of those links about shell programming. There's a lot involved so you might consider just handling generic operations like copy, cut, and paste (if they represent real files, you can simply use the DragDropFormats.Files clipboard format and put a string[] array of filenames into the DataObject for the drag-n-drop or clipboard operation like cut and copy (using the appropriate DragDropEffects). That clipboard format is one the shell recognizes and will cut or copy the files appropriately.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- How to get Internet Eplorer Selected Text? Utku KAYA19-Nov-03 10:30 Utku KAYA 19-Nov-03 10:30  Hi all. I need to get internet expl. selected text to process in my C# application. Any clear help will be appreciated. Re: How to get Internet Eplorer Selected Text? Heath Stewart19-Nov-03 18:33 Heath Stewart 19-Nov-03 18:33  Get the IHTMLDocument2 interface from the WebBrowser control (include the Microsoft.mshtml assembly in your project and get it from the WebBrowser.Document property, which may be null), then get the selection property (which may be null). This gets an IHTMLSelectionObject from which you can use the type property to determine the selection type (text, insertion point, control, etc.) and the createRange method to create a suitable object to work with the actual selection (like a TextRange). See the documentation for IHTMLSelectionObject in the MSDN Library for more detailed information).   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: How to get Internet Eplorer Selected Text? Judah Gabriel Himango20-Nov-03 4:36 Judah Gabriel Himango 20-Nov-03 4:36  Ughhh ugly and messy COM interfaces. Can't wait for Whidbey's managed web browser control. The graveyards are filled with indispensible men. Re: How to get Internet Eplorer Selected Text? Heath Stewart20-Nov-03 7:17 Heath Stewart 20-Nov-03 7:17  I haven't had a time to look at it (or eat, or drink, or breathe) lately. Is the WebBrowser control completely managed (inside and out), or is it just a nicer CCW for the existing WebBrowser COM control (wrapping mshtml and providing IHLink and all that jazz)? I know our app would definitely benefit from that, especially when the Microsoft.mshtml.dll assembly is almost 8 MB!   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: How to get Internet Eplorer Selected Text? Utku KAYA21-Nov-03 11:25 Utku KAYA 21-Nov-03 11:25  I didnt understand what you tried to tell. What web browser? Do i have to create mine in order to get the selected text? Say there is an instance of ie open , after that my app is run , and typing a hotkey I see the selected text. I want this. Re: How to get Internet Eplorer Selected Text? Heath Stewart22-Nov-03 11:13 Heath Stewart 22-Nov-03 11:13  "IE" as you call it is nothing more than an application that hosts the WebBrowser control (which hosts MSHTML). Read the documentation for the Internet Explorer SDK. Read information specifically about IHTMLDocument2 and its selection property. If you don't understand how to get the IHTMLDocument2 object, there are plenty of articles here on CP about it. Just search for "WebBrowser" or "IHTMLDocument2".   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- .NET : DEBUG and RELEASE problem youssef19-Nov-03 9:30 youssef 19-Nov-03 9:30  Hi, I create in the folder DEBUG or RELEASE some settings files for my executable. When I compile my project, the compiler delete the settings files and recreate a new folder DEBUG or RELEASE with the compiled files So how can I do for disable this option. Best Regards youssef Re: .NET : DEBUG and RELEASE problem Heath Stewart19-Nov-03 18:29 Heath Stewart 19-Nov-03 18:29  What do you mean by "settings file"? Do you mean the .config file? If this is the case, remove the app.config file from your project, which is a specially named file that's name is changed and it is copied to the output directory. Usually this is desired behavior so that you can source-manage the configuration file. Otherwise, you may have a pre- or post-build configuration (only in VS.NET 2003 and up for C# and VB.NET) that is deleting these files because the project compilers only replace files in the output directories that it actually creates.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- COM Interop problem Jose Vicente19-Nov-03 5:05 Jose Vicente 19-Nov-03 5:05  Hello. I'm using an ActiveX Control in my .NET project and I have to use a method that originally accepted a IStream. The .NET type library importer has modified the parameter of this method and now looks like this Interop::MyActiveXControl::IStream. The problem that I have is that I can't create directly a Interop::MyActiveXControl::IStream because this is an interface. I have created a System::IO::MemoryStream and fill it with data but this type can't be converted ( or I don't know how ) to convert to Interop::MyActiveXControl::IStream. Any ideas ?? Thanks in advance. Re: COM Interop problem Heath Stewart19-Nov-03 8:45 Heath Stewart 19-Nov-03 8:45  Create a new class and implement that interface. There won't be a class generated for it because the parameter is an interface, unless your COM library exposed a class that already implements it elsewhere.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Using a HWND from another application. mhand7519-Nov-03 5:04 mhand75 19-Nov-03 5:04  I wrote an application a while back that used WIN32 C++ to query a list box in another application for its contents (using SendMessage). I would like to do the same in C#, but instead of using SendMessage, I would like to associate the HWND with a ListBox instance. I can get the HWND for the listbox that is in another app, and I tried using Control.FromHandle, but it returns null. If, however, I put a listbox in my own application it works. This made me suspect that it is a security issue and just not possible. Thanks for any help. Re: Using a HWND from another application. John Arlen19-Nov-03 8:35 John Arlen 19-Nov-03 8:35  An HWND is not global but specific for an application's domain. (It's essentially a pointer). It is therefore not possible to use an HWND outside of that application. fastest active directory access thilol19-Nov-03 4:02 thilol 19-Nov-03 4:02  i want to retrieve the group-membership of all ad-users. the performance with the directorysearcher-class seems to be very poor. what do you think is the the fastest way? thanks for your hints! reagrds, thilo. CODE: Dim adEntry As New DirectoryEntry("LDAP://lan", "xxx", "yyy", AuthenticationTypes.Secure) Dim adSearcher As New DirectorySearcher(adEntry) Dim adSearchResult As SearchResult Dim AllResults As SearchResultCollection adSearcher.Filter = "(objectCategory=user)" adSearcher.SearchScope = SearchScope.Subtree adSearcher.SizeLimit = 65535 adSearcher.PageSize = 65535 adSearcher.PropertiesToLoad.Add("cn") adSearcher.PropertiesToLoad.Add("sAMAccountName") adSearcher.PropertiesToLoad.Add("memberOf") Dim intCount As Int32 = 0 Dim strSoft As String Dim strUser As String Dim ArrSoftware As New ArrayList ' alle gefundenen ad-user... AllResults = adSearcher.FindAll() For Each adSearchResult In AllResults ' wenn die user-id ok ist... If Not IsNothing(adSearchResult.Properties("sAMAccountName")) Then strUser = Convert.ToString(adSearchResult.Properties("sAMAccountName")(0)).Trim.ToLower Debug.WriteLine(strUser) Try ' wenn der user mitglied von gruppen ist... If adSearchResult.Properties("memberOf").Count Then ArrSoftware.Clear() ' jede gruppe in der der user mitglied ist... For Each strSoft In adSearchResult.Properties("memberOf") ArrSoftware.Add(strSoft) End If Next ' datensätze in datenbank If ArrSoftware.Count > 0 Then ApplInsert(strUser, ArrSoftware) End If Catch ' nix zu tun End Try End If Next Re: fastest active directory access Heath Stewart19-Nov-03 4:20 Heath Stewart 19-Nov-03 4:20  Unfortunatley, you don't have a lot of choices if you want to use pure .NET code. If this is a major problem, you could try doing this in a thread or a worker thread (see the ThreadPool class), being sure to use Invoke for ApplInsert if it modifies a UI (since controls are created on the main UI thread and should only be modified on that thread). You could also create a delegate for the ApplInsert method and use BeginInvoke (won't necessarily show-up via IntelliSense, but the compiler creates them automatically, at least the C# compiler does, which brings me to my next statement...) Also, this VB.NET code and you posted it in the C# forum. Fortunately, .NET allows coders to use different languages that use the base class library (BCL) - as well as other assemblies - to produce the (almost) the same IL that is language-independant. I must warn you, though, posting VB.NET in the C# forum might get you beat up!   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: fastest active directory access thilol19-Nov-03 4:30 thilol 19-Nov-03 4:30  ok. thanks. sorry for that vb.net-stuff! regards, thilo. COM Object on C# bva_bva19-Nov-03 3:28 bva_bva 19-Nov-03 3:28  Hi, All. Please, help. I need to create a COM Object for remote data accessing. It will connect to SQL server. Is there any samples or articles? I need just a little sample code to catch the idea... Vital Re: COM Object on C# Heath Stewart19-Nov-03 4:09 Heath Stewart 19-Nov-03 4:09  Are you referring to create a .NET assembly (DLL) written in C# that contains interop code to create a CCW for COM clients to use? First, worry about writing the class to access SQL Server. That's trivial and you can find articles all over CP and the rest of the 'net on this, or look at the System.Data.SqlClient namespace classes, structs, enums, and interfaces. There's a ton of documentation and examples in there. To create the CCW, take a look at Nick Parker's article here: http://www.codeproject.com/dotnet/nettocom.asp[^]. Use regasm.exe to register the DLL, then COM clients can access it. If you create your class interfaces with the attribute InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIDispatch) (or with ComInterfaceType.InterfaceIsDual), then automation clients like VB and VBA (and all your scripting languages) can access the COM object.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: COM Object on C# bva_bva19-Nov-03 5:04 bva_bva 19-Nov-03 5:04  Thanks a lot Open a Web Browser .gonad19-Nov-03 3:05 .gonad 19-Nov-03 3:05  Can someone show me how i can open Internet Explorer by clicking on a button? I'm having a hard time finding out how to do this... Thank you for taking time with this lame-o question. Re: Open a Web Browser OmegaSupreme19-Nov-03 3:56 OmegaSupreme 19-Nov-03 3:56  Hi .gonad, This works System.Diagnostics.Process.Start("http://www.codeproject.com/"); BUT if a browser is open it uses that instead, which is quite anoying for the user I spose. Re: Open a Web Browser .gonad19-Nov-03 4:58 .gonad 19-Nov-03 4:58  Thank you for your response! This will work perfectly for my situation. Have a blessed day! Re: Open a Web Browser OmegaSupreme19-Nov-03 5:07 OmegaSupreme 19-Nov-03 5:07  np, have a good day yourself Re: Open a NEW Web Browser Utku KAYA19-Nov-03 10:36 Utku KAYA 19-Nov-03 10:36  This piece of code runs well for a new browser. Dont forget to give a reference to ExplorerLib.dll ExplorerLib.InternetExplorer explorer; ExplorerLib.IWebBrowserApp webBrowser; explorer = new ExplorerLib.InternetExplorer(); webBrowser = (ExplorerLib.IWebBrowserApp) explorer; webBrowser.Visible = true; webBrowser.Url or something like that = "yourURL";

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