opening other programs?

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  - 1
    - Stop Thread and exit program Sorry, I meant Abort. Why isn't it working Are you getting an error Tag: Visual C# General opening other programs? Visual C#
  - 2
    - How do we get all the thread associated with the .net application? It's not considered good practice to terminate or suspend a thread (this is why Thread.Suspend was made obsolete in .NET 2.0). A running thread can be modifying a non-atomic invariant that, if terminated or suspended would be left in an invalid state. The only way to reliably terminate a thread is to ask it to terminate. Thread.Abort provides a means of injecting an exception into the thread from outside the thread; but you have to handle the abort exception and it doesn't preclude the invalid invariant problem. For the same reason, .NET doesn't provide a means to terminate process threads either. This means you have to write the thread code in a way that checks to see if should continue to run or exist the thread's method. I wrote a small thread class that provides functionality like that, see: http://msmvps.com/blogs/peterritchie/archive/2006/10/13/_2700_System.Threading.Thread.Suspend_280029002700_-is-obsolete_3A00_-_2700_Thread.Suspend-has-been-deprecated_2E002E002E00_.aspx Tag: Visual C# General opening other programs? Visual C#
  - 3
    - Processor efficient loops (notifications). Basically the trigger would be set when you receive messages from the queue. You may need to work out your own event/callback system for managing new arrivals to the queue. Ideally your method for adding a job to the queue is what calls trigger.Set() to indicate that you have a job in the queue. However, it is not clear enough from your description how you are making and adding jobs to your queue. In some cases this may not be possible if you don't have enough control over adding to the queue. Tag: Visual C# General opening other programs? Visual C#
  - 4
    - DatePicker Hello everybody I need to implement in DatePicker next satuation : when user clicks inside white line (not on arrow) then the date table should appear. How to do that Thanks Yosef Fishov Tag: Visual C# General opening other programs? Visual C#
  - 5
    - ref keyword Hello again.. I've searched for using DllImportAttribute using a dymamic path and I've found this answer . The complete code is : Code Snippet static class DllImportDynamic { public const int LOAD_WITH_ALTERED_SEARCH_PATH = 0x00000008; /// <summary> /// To load the dll - dllFilePath dosen't have to be const - so I can read path from registry /// </summary> /// <param name="dllFilePath"> file path with file name </param> /// <param name="hFile"> use IntPtr.Zero </param> /// <param name="dwFlags"> What will happend during loading dll /// <para> LOAD_LIBRARY_AS_DATAFILE </para> /// <para> DONT_RESOLVE_DLL_REFERENCES </para> /// <para> LOAD_WITH_ALTERED_SEARCH_PATH </para> /// <para> LOAD_IGNORE_CODE_AUTHZ_LEVEL </para> /// </param> /// <returns> Pointer to loaded Dll </returns> [ DllImport ( "kernel32.dll" , SetLastError = true )] private static extern IntPtr LoadLibraryEx( string dllFilePath, IntPtr hFile, uint dwFlags); /// <summary> /// To unload library /// </summary> /// <param name="dllPointer"> Pointer to Dll witch was returned from LoadLibraryEx </param> /// <returns> If unloaded library was correct then true, else false </returns> [ DllImport ( "kernel32.dll" , SetLastError = true )] public extern static bool FreeLibrary( IntPtr dllPointer); /// <summary> /// To get function pointer from loaded dll /// </summary> /// <param name="dllPointer"> Pointer to Dll witch was returned from LoadLibraryEx </param> /// <param name="functionName"> Function name with you want to call </param> /// <returns> Pointer to function </returns> [ DllImport ( "kernel32.dll" , CharSet = CharSet .Ansi, SetLastError = true )] public extern static IntPtr GetProcAddress( IntPtr dllPointer, string functionName); /// <summary> /// This will to load concret dll file /// </summary> /// <param name="dllFilePath"> Dll file path </param> /// <returns> Pointer to loaded dll </returns> /// <exception cref="ApplicationException"> /// when loading dll will failure /// </exception> public static IntPtr LoadWin32Library( string dllFilePath) { IntPtr moduleHandle = LoadLibraryEx(dllFilePath, IntPtr .Zero, LOAD_WITH_ALTERED_SEARCH_PATH); if (moduleHandle == IntPtr .Zero) { // I'm gettin last dll error int errorCode = Marshal .GetLastWin32Error(); throw new ApplicationException ( string .Format( "There was an error during dll loading : {0}, error - {1}" , dllFilePath, errorCode) ); } return moduleHandle; } } public class CallDlls { IntPtr myDll ; void InitializeMyDll( string pathToDll) { try { myDll = DllImportDynamic .LoadWin32Library(pathToDll); // here you can add, dll version check } catch ( ApplicationException exc) { MessageBox.Show(exc.Message, "There was an error during dll loading",MessageBoxButtons.OK,MessageBoxIcon.Error); throw exc; } } // The last thing is to create delegate to calling function // delegate must to have the same parameters then calling function (from dll) //public delegate RETURN_TYPE RunAlgorithmDelegate(int a, string b); delegate int TestDelegate ( ref int a); int Test( string pathToDll, ref int a) { if (myDll == IntPtr .Zero) InitializeMyDll(pathToDll); IntPtr pProc = DllImportDynamic .GetProcAddress(myDll , "test" ); TestDelegate cpv = ( TestDelegate ) Marshal .GetDelegateForFunctionPointer(pProc, typeof ( TestDelegate )); // Now i'm calling delegate, with is calling function from dll file return cpv( ref a); } public int CallTest( string pathToDll, ref int a) { int ret; ret = this .Test(pathToDll, ref a); return ret; } public int FreeLibrary( ) { DllImportDynamic .FreeLibrary(myDll); } } // Now if you want to call dll function from program code use this int a = 1; CallDlls othercall = new CallDlls (); othercall.CallTest( ref a); // after this, a will be 20 // dont' forget to FreeLibrary othercall.FreeLibrary( ); Tag: Visual C# General opening other programs? Visual C#
  - 6
    - Cast to instance of type Is it possible to do the following private static void Main(object toCast) { Type toCastTo = GetCustomType(); //now I would like to be able to cast the object toCast to be an instance of MyCustomClass //assume MyCustomClass could be any class and the only way this function knows about it is //via GetCustomType() } private Type GetCustomType() { return typeof(MyCustomClass); } Tag: Visual C# General opening other programs? Visual C#
  - 7
    - copying a windows folder structure to sql server Ok, what you are asking can be done - Im not sure why you would use SQL though, you really need to use the SharePoint sdk for this. What you are trying to do sounds quite complicated, you need to ask yourself two questions A) Can it be done easier - you will confuse your users if it is too complicated B) Are you sure it can’t be done easier If you are 100% sure that it can’t be simplified (K.I.S.S), and that this will be user friendly enough then I can help you build this in SharePoint (ish anyway, my SharePoint knowledge is iffy to say the least J ) Ross (http://blog.the-dargans.co.uk) Tag: Visual C# General opening other programs? Visual C#
  - 8
    - Error in accessing DLL: "Attempted to read or write protected memory." Hi there, I've made a Console Application in C# with VS2005 and putted it on a shared folder in my network (the EXE is called from a Job in SqlServer2000). After a little struggle to make it work due to permissions...(i used the caspol utility to add a subgroup under the 1.2. Zone - Intranet, and added a strongname to the EXE with fulltrust - i hope im not saying any weird stuff, my english is not my natual language ) Now the ugly stuff... my EXE uses 2 DLL which are in the same shared folder, using the [DllImport("libdsh_1MD.dll")] ... and i always get this error: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." What kind of error is this How do i avoid it Does someone know how to help me Tag: Visual C# General opening other programs? Visual C#
  - 9
    - Completely dynamic method invocation Don't you think that is better to give the user some editor where he can overload some alredy implemented methods in your assembly, in which editor when he will do that, you will give him intellisense feature. I use ICSharpCode.TextEditor control for such thing. I know, giving the intellisence to the user is hard and big job. But you will help the user discover the methods, method parameters, types, properties and many more. Also after he will write the overloads you will build that source in a new assembly and if you build succesfuly ok, if not you will inform the user that his source is not correct. About a question why C# doesn't have such posibility. It is because C# is typed language. And this can be great feature for many of developers, but for just small number of them is a luck of posibility. But if you still need that as a posibility, using reflection can you can have that. Yes, you can invoke assembly methods by name using InvokeMember method. This will give you a posibility to not have typed code, but will not help in discovering that that method realy exists and that the job from invoking this method is finished. Tag: Visual C# General opening other programs? Visual C#
  - 10
    - Help Search doesn't work Hi. I switched from XP to Vista. Now, in my VisualStudio 2005, I cannot use the help anymore. For example when doing a search for "TabControl", I got this URL: http://msdn2.microsoft.com/Message-MSDN.htm aspxerrorpath=/en-us/library/ms749171.aspx Which is just saying that "Sorry, we were unable to service your request.". What could be wrong Tag: Visual C# General opening other programs? Visual C#
  - 11
    - Help on Conditional operator ?: That's great, makes the code so much neater, and therefore hopefully quicker and easier to maintain. Tag: Visual C# General opening other programs? Visual C#
  - 12
    - debuging multi thread application problem ashk1860 wrote: thank you for your helpful reply. so I should ask one other question(don't mark as answer yet to don't loose attention). I am trying to throw all the exeptions to the main method and handle them there. but when the error occur the program will stop in thow line instead of going to the main. note that I manage to have try and catch in all of my blocks and throw all of them except main method but it don't go there. this was the reason that I thought it might be the threading problem Do you have the following in your app.config Code Snippet <legacyUnhandledExceptionPolicy enabled="1"/> Tag: Visual C# General opening other programs? Visual C#
  - 13
    - Why Won't My App Run on Windows 2003 Server? I am taking my first stab at writing an application in C#. My App is designed to watch a folder and report any created deleted or modified files. I created a simple form where changes are wrtiiten to a textbox, and concequently to a log file. I used the FileSystemWatcher Object, and wrtie to the text box and log file on the change events. This application runs fine on my XP machine, but fails to even launch on my 2003 server. I tried just a normal form on my 2003 server and it ran fine. Anything that could point me in the right direction would be great. Thanks Tag: Visual C# General opening other programs? Visual C#
  - 14
    - import C# Form as ActiveX in Internet Explorer I am trying import a C# form as a ActiveX control on my webpage. I have followed the following tutorial verbatim here . What happens is it works great at first but then I change the dll, recompile and transfer the dll over to website and then the activex control will not load. Even if I copy the old dll back, it still does not load. Are there some settings on the compiler that I have to set. Any help would be appreciated. Tag: Visual C# General opening other programs? Visual C#
  - 15
    - Text encoding mismatch, .NET 1.1, console vs windows app Hi, I spent whole day to resolve my problem and i have failed. Here is some details. I have got two applications. One is typical C# console application (lets call it A) and second one is C# Windows Application (app B). Both written using framework 1.1 I'm using application A in application B by simply creating new process. Also, I'm using standard output redirection to establish communication between app A and B. And here starts my problem. In StandardOutput i get wrong characters, i mean i'm writing to console string (that string contains characters typical for my locale) and when i'm reading that string in app B i get string that lacks of some characters. I noticed that my console application uses encoding IBM852 (CP852) and StandardOutput uses Windows-1250 encoding. It seems that encoding autodetection failed. What can i do to fix that problem Is there any posibility to change Console.Out encoding to Encoding.Default or to obtain CurrentEncoding in StandardOutput that is correct In .NET 2.0 i spoted OutputEncoding property (or so), what about .NET 1.1 TIA, M Tag: Visual C# General opening other programs? Visual C#
  - 16
    - Threading Question One can start a thread from the UI, but you are starting a thread on the UI's stack. Take the reference to the thread and have it be outside the method and then instantiate and start it within the method. What is happening is that the thread is a foreground thread by default. When the end of the method is reached, (after the start call) the thread blocks the continuing on, until the thread is done . Either Make the thread a background thread. (But the thread will most likely be canceled before it finishes and will not be what you want to happen) . Put the thread reference as a member variable. (Does not have to be static). Also set it to run as a background thread (optional) but it won't block the application when it is shut down or continue to run . Making a thread background does not affect its running priority, it just doesn't block operations when a shut down is occurring. The OS needs to know if its ok to terminate the thread, and will only quickly terminate background threads and not foreground. Usually this occurs when the app has been closed but the threads continue on. I discuss and demonstrate the background setting along with other topics in my blog article entitled C# Threading Worker Class . <Self edited statements that were later shown to be erroneus> Tag: Visual C# General opening other programs? Visual C#
- Next
  - 1
    - Help - How to create test code Dear All: I am new for c#, Any reference for me to create a system that can test/checking the coding. Is it the structure is correct or method is similar with my coding. I am really can't get any of idea how to create the coding for checking the java coding is correct or not. Thanks for anyone are helping. Regards: Cathyie Tag: Visual C# General opening other programs? Visual C#
  - 2
    - Internet Control.. Hi. I'm an engineering student and i'm working on my project titled 'Internet Access Control' for our college. Our college has a server connected to our network lab where internet is accessed. I'm using sockets programming and i would be glad if you tell me which classes i have to use along with the addressing considerations. The aim is to have the user (student) log in and the user can have access to internet only for a fixed amount of time. The server should maintain login information and keep a watch on the time for which the user has accessed the net. I mainly need to know about how the program can know that Internet service has been started and ended, how should it do it What are the packages involved Thanks.. Tag: Visual C# General opening other programs? Visual C#
  - 3
    - XML over the Serial Port Is there a better way to do the job than read bytes from the port to an array and then trick them into XML document. I will appreciate design ideas or the snippet. Tag: Visual C# General opening other programs? Visual C#
  - 4
    - C#.NET 2005 Windows Service Crashing automatically Hi, I even tried commenting the complete call to Excel PIA, even though the service is crashing. I am wondering why the try/catch or atleast the text log file is not getting a hit. Even, the event handler for " AppDomain .CurrentDomain.UnhandledException" is not being hit. Thanks & Regards, Rahul Tag: Visual C# General opening other programs? Visual C#
  - 5
    - Problems with Intellisense popup behavior My intellisense will appear for a second and then disappear. It does not give me time to scroll or select anything. This behavior is not consistent. Is there a timing or environment setting for intellisense How does it determine how long it stays visible Thanks, Tag: Visual C# General opening other programs? Visual C#
  - 6
    - referencing and using an assembly in different folder than App Is there a way to that an application could make use of assemblies that are not located in the same folder or in a subfolder of the main executing assembly Can I direct the probing for a referenced assembly to that different folder somehow Or could I load and use the the assembly using reflection Tag: Visual C# General opening other programs? Visual C#
  - 7
    - SP2 causing error? I'm sure willing to try; but my application is comprised of several different solutions at this point (I'm working on putting them all together in one solution, but running into compilation errors because of output settings, so that won't happen any time soon). Consequently, I'm not sure where to put this code. Some of my projects are base class wrappers for third-party dlls; should I put the code in there, or more toward the final steps of the application Tag: Visual C# General opening other programs? Visual C#
  - 8
    - Looking for possible AssemblyVersion asterix override using config file. Remember reading in a post here sometime ago that VS2005 can read a config file containing format specification to override the handling of asterix's in the AssemblyVersion / AssemblyFileVersion attributes. Is this correct that you can make the compiler set e.g. date format instead of default Tag: Visual C# General opening other programs? Visual C#
  - 9
    - using System.Collections Hi, Posted another thread the other but no reply so I thought I would put the question a bit differently, At the start of c# file you tell it that you are using certain classess, ie using System.Collections If I wish to use a third party class like the google api using Google.GData.Client; Where abouts should I put the classess in order to reference them, Many Thanks Chris Tag: Visual C# General opening other programs? Visual C#
  - 10
    - limit property values no, this code showed you how to populate a ComboBoxControl with values coming from the xml file.. Tag: Visual C# General opening other programs? Visual C#
  - 11
    - How to use multithreading in for loop? The source where I first learned about multithreading in .Net was Microsoft Official Course 2349, which contains a chapter on this subject, but these MOC courses are only available at significant cost, so this may not be an option for you. Other than that, my only suggestion is to look up the System.Threading namespace in the MSDN library and follow the various links from there. Tag: Visual C# General opening other programs? Visual C#
  - 12
    - How to launch application from service on current user's desktop? My service is running as local system. In vista, at this present time, I believe vista does support interaction with desktop, its just that all services run under sessionID 0 or something like that, so that the logged in user will never see the application running nor be able to interact with it. I guess technically if you can tell a program to run under a different sessionID, then you could make it work on vista as well. I have seen video of a service interacting with desktop on vista. When launched, vista prompts the user if they want to view the desktop for the application that was launched. If user agrees, they are taken to that sessionID 0, and then see the application running........ Something like that anyway..... Tag: Visual C# General opening other programs? Visual C#
  - 13
    - c# Insert into Sql This was a great example for a novice like me. thank you very much. One question, can you substitue @@IDENTITY with SCOPE_IDENTITY cp Tag: Visual C# General opening other programs? Visual C#
  - 14
    - How to set the default browser setting in Visual studio 2005 Right click on Project and than goto "BROWSE WITH..." select IE or your browser from list (do not forget to make it default. Otherwise it wont work" It works KR Tag: Visual C# General opening other programs? Visual C#
  - 15
    - How to increase the length of DirectoryInfo[] timvw wrote: You could initialize a new array of n+1 elements, use Array.Copy to copy the first n elements, and then assign the last element. Or just call Array.Resize which does all of that for you. Tag: Visual C# General opening other programs? Visual C#
  - 16
    - Business Logic Layer Question I found the following article on MSDN related to breaking my solution into logical layers. I understand the concept and very much want to give it a shot, however, I have over 300 database tables and counting and looking at what this guy is pushing for a single table is overwhelming and quite rediculous. Can anyone suggest an alternative or are you all really going to this much trouble to produce a single solution http://msdn2.microsoft.com/en-us/library/aa581779.aspx Thanks, glenn Tag: Visual C# General opening other programs? Visual C#

Wolf_92

Hello, is it possible with C# to open up the user's default internet browser and take it to a certain web page I would like it to open it outside the program (if you understand). If you can do this, is it possible to open any program

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Re: Visual C# General opening other programs?

theTroll527

Here you go..
http://support.microsoft.com/kb/306222

theTroll

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Re: Visual C# General opening other programs?

theblueeyz

Yes, it's very simple actually. The Process class in .NET is pretty smart. For example, if you do the following:

System.Diagnostics.Process.Start("http://www.yahoo.com") it will start the user's default browser and go to the Yahoo home page (this is of course dependent on whether the default browser accepts a URL as a command line argument - all the major browsers do).

You can start any known program this way - pass it a text file, it will start the default text editor; pass it a path to a movie, it will use the default movie viewer.

You can pass it an executable name too and if it can find the exe on the user's path, it will start that; if it's not on the default path you'll have to pass it the full path to the exe.

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