What about creating a grid and moving every point to the nearest valid position? This raises a problem when two points are almost in line, but unfortunately fall into diffferent grid lines. This special case would have to be taken care of manually (and checked after each point aligment performed, as the situation is going to change in time). Greetings - Jacek

that is interesting approach! never thought of it before Чесноков

I am asking because I am trying to work out something. But... huh whatever. I would say that you just setting text in another instance. No more Mister Nice Guy... >: |

If you can handle FORTRAN, one source is here[^]. Translation to a modern language shouldn't be hard, as FORTRAN is a very basic language, and all of its constructs have modern equivalents. If you're interested in such things, this guy has hundreds of different theoretical physics solutions posted on his site. What a gem! I'm bookmarking it for future use. Thanks for leading me to search for it for you. :-D Will Rogers never met me.

Visual Studio 2010 Premium and Ultimate editions are the only ones with a memory profile built in. All other editions of 2010 and all editions of Visual Studio 2008 and below do not have a memory profiler at all. Windows doesn't have any debugging tools to do this either. But, you are going to have to learn to use the tools effectively. It's not just as simple as starting a profile session, run your app, and Viola!, there's your problem. You have to understand how .NET memory allocation works and how the object involved in your problem behave with respect to memory allocation. A guide to posting questions on CodeProject[^] Dave Kreskowiak

It works :-), Nice trick, thanks.

Good article :) I Love T-SQL "Don't torture yourself,let the life to do it for you." If my post helps you kindly save my time by voting my post. www.cacttus.com

yes, thanks, that was the variable to set to, stream.TimeOut by default it is 5 minutes to read and write, quite large value. I would never discover the problem had it not been to wifi connection. It is surprising that ordinary landline disconnection immediatly result in Read() failure but with wifi it waits entire timeout. Чесноков

As you did not present any code, I assume that you are having a problem with Control.Invoke Method (Delegate) method. The exception is not thrown if you try to change some control's properties directly from inside a thread. For example: private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) { ChangeMyText("Privet"); } private void ChangeMyText(string myText) { label1.Text = myText; } The result will be a dead backgroundWorker. It will not say anything but die when it reaches label1.Text = myText; and will not throw an exception. Instead, you have to use label1.Invoke((Action)delegate { label1.Text = myText; }); ____________ Ulugbek

I don't know if it counts as a design pattern but my sockets library[^] may be of some use to you (either to use it or to look at the code to adapt for your own solution). I don't use asynchronous writing (writing is de facto asynchronous, as it writes to the local buffer immediately, so you only need to use the methods if you want feedback), but I do use asynchronous accept and read and handle the various ways in which it can go wrong unexpectedly.

Well, then, draw four rectangles around the area you want to keep clear. Just change the Paint event handler I posted before this way: private void pct_Paint(object sender, PaintEventArgs e) { if (drawRect) { e.Graphics.FillRectangle(br, 0, 0, pct.Width, r.Y); e.Graphics.FillRectangle(br, 0, r.Y, r.X, pct.Height); e.Graphics.FillRectangle(br, r.X, r.Y + r.Height, pct.Width, pct.Height); e.Graphics.FillRectangle(br, r.X + r.Width, r.Y, pct.Width, r.Height); } } This will work pretty well. Do you also want to save the image after you have darkened the area?

yes, public static bool TryParse(static RectangleF, string s, out RectangleF rect) { ... } is what I meant. BobJanova wrote: you never know where they are actually defined. the IDE can worry about that, you don't have to. :) Luc Pattyn [My Articles] Nil Volentibus Arduum The quality and detail of your question reflects on the effectiveness of the help you are likely to get. Please use <PRE> tags for code snippets, they improve readability. CP Vanity has been updated to V2.3

The following two methods are based on the ConvertFrom and ConvertTo methods of the RectangleConverter class, tweaked for RectangleF and other bits removed as we know the types required in advance. using System; using System.ComponentModel; using System.Drawing; using System.Globalization; public class RectangleFUtilities { public static bool TryParse(string s, out RectangleF result) { if (string.IsNullOrEmpty(s)) { result = RectangleF.Empty; return false; } s = s.Trim(); if (s.Length == 0) { result = RectangleF.Empty; return false; } CultureInfo culture = CultureInfo.CurrentCulture; string[] strArray = s.Split(new char[] { culture.TextInfo.ListSeparator[0] }); float[] numArray = new float[strArray.Length]; for (int i = 0; i < numArray.Length; i++) { if (!float.TryParse(strArray[i], out numArray[i])) { result = RectangleF.Empty; return false; } } if (numArray.Length != 4) { result = RectangleF.Empty; return false; } result = new RectangleF(numArray[0], numArray[1], numArray[2], numArray[3]); return true; } public static string ToString(RectangleF rectangleF) { CultureInfo culture = CultureInfo.CurrentCulture; string separator = culture.TextInfo.ListSeparator + " "; TypeConverter converter = TypeDescriptor.GetConverter(typeof(float)); string\[\] strArray = new string\[4\]; int num = 0; strArray\[num++\] = converter.ConvertToString(null, culture, rectangleF.X); strArray\[num++\] = converter.ConvertToString(null, culture, rectangleF.Y); strArray\[num++\] = converter.ConvertToString(null, culture, rectangleF.Width); strArray\[num++\] = converter.ConvertToString(null, culture, rectangleF.Height); return string.Join(separator, strArray); } } Dave Binging is like googling, it just feels dirtier. Please take your VB.NET out of our nice case sensitive forum. Astonish us. Be exceptional. (Pete O'Hanlon) BTW, in software,

Never mind, as long as it conveys the idea. But beginners might have a problem though.

just to practice LINQ queries Чесноков

I'm not a forms programmer, but I see that using the VS10 designer properties window to add the binding adds a line of code that initializes the textbox.Text property, and that line won't compile. Funny it doesn't even need that line...bug or feature? So it looks to me like the binding needs to be added by hand, which I tested and it works fine. Mark Salsbery Microsoft MVP - Visual C++ :java:

I started to experiment with timer interval of the service processing functionality setting it to different values 30,10,15,1,0.5,0.1 seconds. At every timer event service performs some work in worker threads. First there are the same clr.dll crashes with large timer intervals after exactly 10 calls to unmanaged class library. Then after I tried smaller ones the crashes disappeared. Occasionally there were few new ones: Framework Version: v4.0.30319 Description: The process was terminated due to an internal error in the .NET Runtime at IP 6B50927D (6B290000) with exit code 80131506. From the .NET runtime source. But now everything seems to work without problems. I wonder the reason of that erratic behaviour, every day new type of crash. Have you tried http://support.microsoft.com/kb/2520479[^] yourself? Were there any problems with SP1 for VS Ultimate version with standalone SDK 7.1 installed? Чесноков

Hello. Looking at the documentation for _msize function, it says that it returns the length of a memory block allocated by calloc, malloc or realloc so, since your byte[] arrays are allocated into the managed heap, I think it will not work unless you use Marshal.AllocHGlobal (and I am not sure if this would work) to allocate the memory and then copy data from managed heap to unmanaged heap and viceversa. stackalloc could be used for one dimensional arrays becouse it is very similar to C _alloca function but, as far as I know, it is not possible in other cases, becouse stackalloc keyword can only be used when declaring and initializing a variable, I mean: byte* pt = stackalloc byte[100]; // this is fine byte* pt2; pt2 = stackalloc byte[100]; // this does not work

Luc Pattyn wrote: I suggest you describe the real problem you are trying to solve, not a detail along the wrong path you seem to have chosen; and/or read up on reflection. It is in the question, given class variable as input convert it to string: string name = FieldToString(SomeClass.SomeVariable); // name = "SomeVariable" Чесноков