C#

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LVN_ODCACHEHINT and LVN_ODFINDITEM kasturirawat18-Jan-02 12:28 kasturirawat 18-Jan-02 12:28  I’m using List-view controls with the LVS_OWNERDATA style and I’m trying to handle notification messages LVN_ODCACHEHINT and LVN_ODFINDITEM. Any help on this would be great. .NET scanners Not Active18-Jan-02 7:36 Not Active 18-Jan-02 7:36  I was considering trying to write something simple to interface with my scanner. Could someone point me in the direction of some .NET info dealing with this? I know of the Still Image API, but is there something in .NET for it? Re: .NET scanners Peter Stephens18-Jan-02 17:58 Peter Stephens 18-Jan-02 17:58  AFAIK there is no built in support for scanning. You might be able to interface with TWAIN through .NET interop, but its sure to be messy. I heard that Lead tools was releasing an imaging product for .NET. That might have what you need. -- Peter Stephens How to get windows directory? 17-Jan-02 10:50 17-Jan-02 10:50  I need to read a .ini file under windows directory. But the name of the directory may be different on different machines. In some machine it is winnt while on ohters it is windows. So, how to get the name of the directory. I used GetPrivateProfileString with VC++. and I tried the whole afternoon to get it worked under C# but it just cannot return the string. the declaration of GetPrivateProfileString in VC++ is: DWORD GetPrivateProfileString( LPCTSTR lpAppName, // section name LPCTSTR lpKeyName, // key name LPCTSTR lpDefault, // default string LPTSTR lpReturnedString, // destination buffer DWORD nSize, // size of destination buffer LPCTSTR lpFileName // initialization file name ); And I converted it to static extern int GetPrivateProfileString( string appName, string keyName, sttring default, ref string strReturn, int size, string fileName); But I got System.NullReferenceException. How to solve these two problems or any one of them? Re: How to get windows directory? Navin17-Jan-02 11:03 Navin 17-Jan-02 11:03  I don't know a lot about C#, but I do know there is a Windows API to get this directory: UINT GetWindowsDirectory(LPTSTR lpBuffer, UINT uSize); Look it up in MSDN for details. The early bird may get the worm, but the second mouse gets the cheese. Re: How to get windows directory? 22-Jan-02 2:33 22-Jan-02 2:33  If I declare it as static extern int GetWindowsDirectory(ref string strDir, int size); and call it as string strDir = ""; GetWindowsDirectory(ref strDir, 20); I still got the NullReferenceException. The point is how to get the value back from the function. Re: How to get windows directory? James T. Johnson22-Jan-02 4:31 James T. Johnson 22-Jan-02 4:31  You need to use the StringBuilder class instead of string. StringBuilder strDir = new StringBuilder(20); GetWindowsDirectory(ref strDir, 20); James Sonork ID: 100.11138 - Hasaki "Not be to confused with 'The VD Project'. Which would be a very bad pr0n flick. " - Michael P Butler Jan. 18, 2002 Installing Windows Service omkamal17-Jan-02 4:50 omkamal 17-Jan-02 4:50  Hai, I wrote a windows service application using c#. I am able to install it using InstallUtil.exe provided by .NET framework. But I want to install the same service on a different machine which does not have .NET framework. I think, InstallUtil.exe comes only when you install .NET (correct me if I am wrong). But I dont want to install .NET framework just for this utility. Does c# provide any class which can be used to install a service? I read about ServiceProcess.ServiceController. But this only helps me to monitor the installed services. Any suggestions... omkamal Re: Installing Windows Service omkamal17-Jan-02 6:17 omkamal 17-Jan-02 6:17  Oops Sorry folks. I read that you need .net framework to atleast run a .NET application ( no matter its a service or whatever ). So there is no way but to rely on InstallUtil.exe. Thanks anyways omkamal System name using C# 16-Jan-02 7:50 16-Jan-02 7:50  Hai, Can anyone tell me how to get the name of the computer (in which the code is running) using c#? thanks. Re: System name using C# Fazlul Kabir16-Jan-02 8:46 Fazlul Kabir 16-Jan-02 8:46  Thought this one should do String s = System.Diagnostics.Process.GetCurrentProcess().MachineName; // Fazlul Get RadVC today! Play RAD in VC++ http://www.capitolsoft.com Re: System name using C# omkamal16-Jan-02 10:00 omkamal 16-Jan-02 10:00  Its giving me only a '.', its not giving me the name of the machine. any other suggestions???? omkamal Re: System name using C# omkamal17-Jan-02 2:36 omkamal 17-Jan-02 2:36  Ok. This is what I found out. I dont think there is a direct GetComputerName function in c# (as far as I know). Instead I read the following registry key HKLM\System\CurrentControlSet\Control\ComputerName\ComputerName. I hope this key is created in all machine because the System subkey stores sys related info. If anyone wants to know the computer name, this is next to a good solution. Use, Microsoft.Win32 namespace for Registry related classes in c#. One more thing "Naivete" and "omkamal" are one and the same. I just changed my username. Thanks for your help. omkamal Re: System name using C# Fazlul Kabir17-Jan-02 2:46 Fazlul Kabir 17-Jan-02 2:46  You're right, it doesn't work on my system either. According to .NET documentation, MachineName property should return the name of the system Gets the name of the computer the associated process is running on. // Fazlul Get RadVC today! Play RAD in VC++ http://www.capitolsoft.com Re: System name using C# omkamal17-Jan-02 4:19 omkamal 17-Jan-02 4:19  But if you read the document further it will also say that this property holds true only when you are trying to reach a remote computer... Remarks Specify a value for the MachineName property to view the processes running on another computer on the network. You can view statistical data and process information for processes running on remote computers but you .... omkamal Re: System name using C# Fazlul Kabir17-Jan-02 4:48 Fazlul Kabir 17-Jan-02 4:48  omkamal wrote: But if you read the document further it will also say that this property holds true only when you are trying to reach a remote computer... Sorry, I was obviously mistaken. I guess you can try SystemInformation::ComputerName, as suggested in another post. // Fazlul Get RadVC today! Play RAD in VC++ http://www.capitolsoft.com Re: System name using C# Kelly Herald17-Jan-02 4:17 Kelly Herald 17-Jan-02 4:17  Naivete wrote: Can anyone tell me how to get the name of the computer (in which the code is running) using c#? Try this: string s = SystemInformation.ComputerName; Kelly Herald Software Developer Micronpc, LLC Re: System name using C# omkamal17-Jan-02 4:43 omkamal 17-Jan-02 4:43  Awesome! Thanks Kelly. I appreciate your reply. I was so surprised how come c# doesnot provide such a functionality. But shame on me, that I felt so frustrating to check every single class for it. Nor did I try different search strings. Thanks again, Omkumar. omkamal Re: System name using C# Fazlul Kabir17-Jan-02 4:44 Fazlul Kabir 17-Jan-02 4:44  Thanks, this worked. // Fazlul Get RadVC today! Play RAD in VC++ http://www.capitolsoft.com Re: System name using C# omkamal17-Jan-02 9:18 omkamal 17-Jan-02 9:18  Sorry if I underestimated c#. Here you go. One more property to get the machine name... System.Environment.Machinename omkamal VS.NET and Product Activation Alex Klinsky16-Jan-02 4:44 Alex Klinsky 16-Jan-02 4:44  Will VS.NET require Product Activation like Windows XP ? Re: VS.NET and Product Activation Konstantin Vasserman16-Jan-02 5:12 Konstantin Vasserman 16-Jan-02 5:12  I did not install it yet, but it does not look like it will need activation, because a key is provided to MSDN subscribers. Array Size ? 16-Jan-02 2:48 16-Jan-02 2:48  Hi, I have an array of type Type[] foo; how can i get the number of emelemts and size of this array if im passing it into an function ? I tried foo.Count but that doesnt seem to be valid. Any ideas ? Re: Array Size ? Joao Vaz16-Jan-02 5:04 Joao Vaz 16-Jan-02 5:04  Hi , Try foo.Length Cheers, Joao Vaz VS.NET style docking windows - free source 16-Jan-02 2:32 16-Jan-02 2:32  The first release of Magic is now available. This release includes docking windows with the look and feel of the VS.NET ones. It can host Control or Form derived objects and have context menus and floating/docked states. Go to the following website... www.crownwood.net The source, samples and tutorials can be downloaded and used free of charge for both personal and commercial purposes. Phil Wright phil.wright@crownwood.net

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