C#

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Icon image loses quality after deserialization Flack6-Mar-04 12:27 Flack 6-Mar-04 12:27  Hello, In my app I have a custom button class that contains an Icon field. I choose an icon for the button, save this icon in the buttons icon field and set the icon to be displayed on the button. So far everything works great and the icon on the button looks fine. Now, I want to save the button's icon (along with other info Im using), so I serialize it. However, when I deserialize the info and create a new button using the deserialized icon, the icons image quality is poor. It looks like its using less colors or something. The same thing happened when I used bitmaps intstead of icons. I dont have much experience with image manipulation so if anyone knows what could be causing the drop in quality please let me know. (Is there a way to set the image quality of the deserialized icon to that of windows)? Thanx -Flack Re: Icon image loses quality after deserialization Member 9300226-Mar-04 19:46 Member 930022 6-Mar-04 19:46  Button button1=new Button(); button1.Parent=this; button1.Bounds=new Rectangle(20,20,256,256); button1.Image=new Bitmap(@"C:\Windows\soap bubbles.bmp"); FileStream fs=new FileStream("iconser.bin",FileMode.OpenOrCreate,FileAccess.Write,FileShare.None); BinaryFormatter bf=new BinaryFormatter(); bf.Serialize(fs,button1.Image); fs.Flush(); fs.Close(); FileStream fsOut=new FileStream("iconser.bin",FileMode.Open,FileAccess.Read,FileShare.None); Image img=(Image)bf.Deserialize(fsOut); Button btn=new Button(); btn.Bounds=new Rectangle(300,20,256,256); btn.Parent=this; btn.Image=img; Re: Icon image loses quality after deserialization Member 9300226-Mar-04 19:48 Member 930022 6-Mar-04 19:48  I meant, in this example no image quality loss can be observed. Too many apps opening BigBlob2026-Mar-04 9:00 BigBlob202 6-Mar-04 9:00  I have an outlook bar with a bunch of buttons. When you click one of the buttons, it will open a certain program. The only problem that I have is that it opens the program about 20 times. Any ideas? Here is the code for opening the program: <br /> private void clickAction(object sender, System.EventArgs e)<br /> {<br /> Process.Start(@"....");<br /> }<br /> Thanks. By BigBlob202 Dinco Inc. Re: Too many apps opening Heath Stewart6-Mar-04 17:46 Heath Stewart 6-Mar-04 17:46  Yeah, don't click it after a second time. If you need only one instance of these programs, then write them accordingly. There are several articles here on CodeProject on how to write single instance applications. You could easily adapt this to make your application stick with a single application instance if the application is beyond your control. Mutexes make this easy.   Microsoft MVP, Visual C# My Articles how to get Serial Number? SherKar6-Mar-04 7:29 SherKar 6-Mar-04 7:29  how to get Serial Number of a flash memory pluged into the USB port? or any information about the pluged device into the USB port? Re: how to get Serial Number? Mazdak6-Mar-04 10:48 Mazdak 6-Mar-04 10:48  I think you can do that through WMI classes. See this example: http://www.codeproject.com/csharp/wmi.asp[^] Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope Access to Streaming data? holt6-Mar-04 5:31 holt 6-Mar-04 5:31  I have a brokerage account that provides streaming real-time stock quotes via an internet applet and I'd like to import the data into a C# application for further manipulation. Two ideas that occurred to me are 1)Screen scraping the data from the applet window on my desktop, and 2)Intercepting the TCP data stream as it comes across port 80. Unfortunately, I haven't done much work with Windows API and can't figure out how to implement either one. Any thoughts or suggestions? Re: Access to Streaming data? ian mariano6-Mar-04 6:22 ian mariano 6-Mar-04 6:22  WebClient.OpenRead and WebClient.OpenWrite Ian Mariano - http://www.ian-space.com/ "We are all wave equations in the information matrix of the universe" - me from a listbox to a database ASGill6-Mar-04 5:05 ASGill 6-Mar-04 5:05  hi im wondering how do i take a selection from a list and store it in a database...do i have to 1. make the selection 2. take the selection and store it into a string 3. store the string into the database or 1. make the selection 2. store it into the database by doing this "INSERT INTO Pharmacy ListboxColumn Values '"+listbox.selecteditem+"'"; also how do i take multiple selection and store it in a string? txh in advance Re: from a listbox to a database Mazdak6-Mar-04 7:28 Mazdak 6-Mar-04 7:28  ASGill wrote: store the string into the database Look and search for SqlCommand,SqlDataAdapter in MSDN and this site for sample. ASGill wrote: . take the selection and store it into a string Look for ListBox.SelectedValue in MSDN Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope Re: from a listbox to a database ASGill6-Mar-04 17:44 ASGill 6-Mar-04 17:44  got it working mazdak!....thx alot for ur directions.. anyways, im kinda curious here.... when i've completed my app and i'd have to present it in a networked environment..what do i need for my app to run on a completely different machine...like Java's got their Virtual Machine (JVM) and such..also pls tell me the list of OS's thats compatible with a .Net app. i know i can get all this info from the internet...i just wanna doubl confirm..so that im not doin anything wrong.. also...im trying to implement a splash screen, how do i start my app with splash screen first... i tried [STAThread] { Application.Run(new frmSplash); } but then the splash screen does not wanna close at all...how do i go about this. oh yeah and another thing...can i have your name...i'd like to add it in my acknowledgement and also referrence. thx in advance Arvinder Gill Re: from a listbox to a database Mazdak6-Mar-04 19:44 Mazdak 6-Mar-04 19:44  For your first question you need to install .NET framework on each machine you want to run your application. Also if you use ADO.NET (which you used) you need to install latest version of MDAC on that machine, specially if that OS is not WinXP. About spalsh screen, I haven't done it myself in C# but if you want to put it before Application.Run() you have to close before it too cause that line actualy doesn't finish until you close your application. You can first show splash, then use sleep function for wait some seconds,then close it. Same thing can be done in Load event too, but I don't know best solution until I test it myself. ASGill wrote: can i have your name... Well, you already know it. My name is Mazdak. Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope Re: from a listbox to a database ASGill7-Mar-04 15:19 ASGill 7-Mar-04 15:19  hi mazdak sorry maz...im a lil bit blur here right now...what's MDAC??... CODER Re: from a listbox to a database Mazdak7-Mar-04 19:04 Mazdak 7-Mar-04 19:04  ASGill wrote: what's MDAC??... Microsoft Data Access Component. http://www.microsoft.com/downloads/results.aspx?productID=&freetext=mdac&DisplayLang=en[^] If you use updated WinXP you have latest version already but it is not included in other OSes. Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope how to get and set scrollbar positions of a rich textbox control.? neoksd6-Mar-04 2:27 neoksd 6-Mar-04 2:27  As the title says, I am wondering about how to get and set scrollbar positions of a rich textbox control. I want to make haxa editor using C#. so I used 3 richbox. first richbox displays the line number, second richbox displays Haxa data and the last richbox display ascii code. so all richbox scrolled at same position and at the same time. Does anyone know a method to get and set textbox scrollbar positions? Re: how to get and set scrollbar positions of a rich textbox control.? Nick Parker6-Mar-04 4:52 Nick Parker 6-Mar-04 4:52  neoksd wrote: Does anyone know a method to get and set textbox scrollbar positions? Off the top of my head you can P/Invoke GetScrollPos and SetScrollPos. I think you might be better to P/Invoke GetScrollInfo and SetScrollInfo instead though. - Nick Parker   My Blog creating a GUID for a file obaidullah5-Mar-04 23:10 obaidullah 5-Mar-04 23:10  Hi, I want to create a GUID for a file the problem is that case 1 i want to keep track of the file even if its name .creation date are changed case 2 i cannot use the file name , file size and file type because two diffrent files can have the same name ,same size and same type Requirement i want to check that if any other person has that file with a different name but same contents i should be able to recognize that it is the same file Can you please help me out that what parameter should bee use to create the guid and over come the probem Example file name Size content(written in file) abc.txt 1 abc abc.txt 1 bac How can i make differnt GUID for these files and same for below mention file name Size content(written in file) abc.txt 1 abc bac.txt 1 abc Re: creating a GUID for a file leppie6-Mar-04 0:24 leppie 6-Mar-04 0:24  MD5 checksums would be you best bet, maybe even going as far as looking how file hashes are performed in emule. top secret Re: creating a GUID for a file Nick Parker6-Mar-04 4:29 Nick Parker 6-Mar-04 4:29  You can easily create a new GUID, they will always be different from one another. Guid g = Guid.NewGuid(); - Nick Parker   My Blog Re: creating a GUID for a file Dave Kreskowiak6-Mar-04 5:54 Dave Kreskowiak 6-Mar-04 5:54  You could create a new GUID easily in .NET. But how are you going to attach that GUID to the file? You can't put it in the file because then you would have two files with the same GUID. It sounds like your trying to attach a serial number to a file and then letting the user manipulate the file any way they want, even moving and renaming, and keep track of the file and its copies. A daunting task, indeed. You'll need to write an entire extension package to NTFS to get this to work. RageInTheMachine9532 Re: creating a GUID for a file Heath Stewart6-Mar-04 17:44 Heath Stewart 6-Mar-04 17:44  No you don't. You merely attach an alternative data stream[^] to the file, something NTFS already supports. You could also use the \005SummaryInformation ADS which NTFS also provides - the same one that appears by default on all files on an NTFS volume.   Microsoft MVP, Visual C# My Articles Re: creating a GUID for a file Dave Kreskowiak7-Mar-04 5:21 Dave Kreskowiak 7-Mar-04 5:21  Whoops! My bad! I forgot about alternate streams. I haven't used them at all , but have read about the concepts on MSDN somewhere about 5 years ago. RageInTheMachine9532 Help ! DOS 8.3 File Name to Full Path Andy Hampshire5-Mar-04 22:18 Andy Hampshire 5-Mar-04 22:18  Hi, I think i'm going mad ..... All i need to do is convert a DOS style 8.3 file name to the full expanded format name ... but i'm damned if i can find a way to do it. I think i can do anything to a file apart from this.... please help ... preserve my sanity. Thanks ... Andy Re: Help ! DOS 8.3 File Name to Full Path Nick Parker6-Mar-04 8:48 Nick Parker 6-Mar-04 8:48  If the .NET Framework doesn't support this you can P/Invoke either GetLongPathName or GetFullPathName. - Nick Parker   My Blog

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