.NET (Core and Framework)

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Re: .ico to .cur conversion in stream object Dave Kreskowiak30-Jul-07 9:28 Dave Kreskowiak 30-Jul-07 9:28  No, not really. The problem is that there is information missing from an icon file that is needed to create a cursor, namely the click hotspot. You can't tell it exactly which pixel in the picture is used to determine where the user clicked. A guide to posting questions on CodeProject[^] Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic      2006, 2007 Re: .ico to .cur conversion in stream object p_s_i_2007073030-Jul-07 19:58 p_s_i_20070730 30-Jul-07 19:58  thanks dave. Re: .ico to .cur conversion in stream object p_s_i_2007073031-Jul-07 0:46 p_s_i_20070730 31-Jul-07 0:46  thanks once again dave. the detailed scenario is as under: My requirement description is as under: 1) I have a ".ico" file in the solution explorer that I created. 2) Now I have a "System.Windows.Forms.Cursor" constructor which accepts a Stream object. This is one of the ways we can instantiate a System.Windows.Forms.Cursor object by passing it a Stream object. 3) I also have a ".ico" file in the solution explorer with me. Now, putting the ".ico" file in a Stream and passing it to "System.Windows.Forms.Cursor" constructor gives an argument exception. My queries are: 1) Does .Net support the process of providing ".ico" file to the "System.Windows.Forms.Cursor" constructor in a Stream? 2) Does .net provide a way to take the ".ico" file in a MemoryStream and convert it to some format acceptable by System.Windows.Forms.Cursor" constructor? Re: .ico to .cur conversion in stream object Luc Pattyn31-Jul-07 1:20 Luc Pattyn 31-Jul-07 1:20  Hi, it will not work. read up MSDN on the Cursor Constructor (Stream) and you will see the remark: The data stream specified by stream must contain a cursor (.cur) file. So you can't just give it any stream you would like (ICO file, some image, whatever). Conclusion: you must interactively create your cursor, I guess either using Visual Studio or some other tool. Luc Pattyn try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] } catch { [Google] } Re: .ico to .cur conversion in stream object p_s_i_2007073031-Jul-07 1:58 p_s_i_20070730 31-Jul-07 1:58  thanks a lot Luc. there is one last question I have in this context . If I take the ".ico" file in a MemoryStream. Then can I convert this MemoryStream to contain the cursor result? I am sorry to bother you on this again and again . But your reply will really be useful. Then finally I can decide which way to select. Re: .ico to .cur conversion in stream object Luc Pattyn31-Jul-07 2:09 Luc Pattyn 31-Jul-07 2:09  p_s_i_20070730 wrote: If I take the ".ico" file in a MemoryStream. Then can I convert this MemoryStream to contain the cursor result? No. I dont know ANY way to programmatically convert from or to cursor format. Luc Pattyn try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] } catch { [Google] } Re: .ico to .cur conversion in stream object Dave Kreskowiak31-Jul-07 2:56 Dave Kreskowiak 31-Jul-07 2:56  The point your missing is that the data expected by the Stream constructor requires that it contains certion information and is formmated exactly how it expects as a stream of bytes. The data you're giving this constructor is not formatted for a cursor file and is not in the proper format. You simply cannot use the Stream constructor how you want. You have to build an array of bytes, or write to a MemoryStream and write the data from the .ico file, massaged and reformatted for the .cur format. You must also place the bytes describing the click hotspot into this array in the place that the .cur file format expects. THen you can pass the MemoryStream to the Stream constructor of the Cursor class. In order to do what you want, you have to be familiar with the file formats of both .ico and .cur files, down to the byte. A guide to posting questions on CodeProject[^] Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic      2006, 2007 Re: .ico to .cur conversion in stream object Luc Pattyn31-Jul-07 3:48 Luc Pattyn 31-Jul-07 3:48  Hi Dave, seems we are missing a Cursor constructor that takes an image plus some extra parameters as arguments. We can convert an image to an icon without knowing the icon format, it takes say 5 lines of code using a stream. We would like to be able to do something similar for image-to-cursor. Do you have the code available to do it at the byte level ? Luc Pattyn try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] } catch { [Google] } Re: .ico to .cur conversion in stream object Dave Kreskowiak31-Jul-07 4:33 Dave Kreskowiak 31-Jul-07 4:33  I don't have any code for it and don't know of any. I just posted how I would approach the problem. A guide to posting questions on CodeProject[^] Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic      2006, 2007 Re: .ico to .cur conversion in stream object p_s_i_2007073031-Jul-07 4:00 p_s_i_20070730 31-Jul-07 4:00  thanks dave. Can you please let me know if there is any code where the same has been implemented? it'll be of great help. some piece of code to convert the ico stream to cur stream Re: .ico to .cur conversion in stream object Dave Kreskowiak31-Jul-07 4:34 Dave Kreskowiak 31-Jul-07 4:34  I don't have any code for it and don't know of any. I just posted how I would approach the problem. A guide to posting questions on CodeProject[^] Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic      2006, 2007 Re: .ico to .cur conversion in stream object Vasudevan Deepak Kumar30-Jul-07 18:42 Vasudevan Deepak Kumar 30-Jul-07 18:42  You seem to have a very similar post just a minute back. Vasudevan Deepak Kumar Personal Homepage Tech Gossips icon to cursor conversion p_s_i_2007073029-Jul-07 22:12 p_s_i_20070730 29-Jul-07 22:12  Hi, I have a query. Can we convert a Memory Stream containing a ".ico" file to the Memory Stream acceptable by the System.Windows.Forms.Cursor constructor that accepts a stream containing ".cur" file? Re: icon to cursor conversion JoeSharp29-Jul-07 22:58 JoeSharp 29-Jul-07 22:58  hi yes and no the ico and cur have the same file structure. two things are different: 1. in the header info the type is 1 (for ico is 2) 2. windows can only handle B/W cursors, therfore the lenght of the cursor file is smaller. hier is a good example of manipulating icons in windows. you also finde the file structure for icons http://www.codeproject.com/cs/library/IconLib.asp regards How to Select a Node in a TreeView Control bneacetp29-Jul-07 18:56 bneacetp 29-Jul-07 18:56  I have a TreeView control that I have a set number of nodes in. How would I go about programmatically selecting a node with a known FullPath. Thanks in advance for the help. John 3:16: "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life." using Earth.Internet.WWW.CodeProject; how to create project in Asp.net purvi barot27-Jul-07 22:48 purvi barot 27-Jul-07 22:48  hi i am new developer of Asp.net technology........ i am a student of B.E.Information technology ........... i am trying to make project on onine gaming using c# .net and Asp.net.... so please give me suggetions of information for developing my project in betterway thank you purvi Re: how to create project in Asp.net Paul Conrad29-Jul-07 19:49 Paul Conrad 29-Jul-07 19:49  purvi barot wrote: i am trying to make project on onine gaming using c# .net and Asp.net.... What kind of game are you thinking of? "Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon Re: how to create project in Asp.net purvi barot31-Jul-07 6:26 purvi barot 31-Jul-07 6:26  I have not much more idea but i want to develope a game by using concepts of directX or OpenGL .... some what simple game for learning or say introductory game... If you have an idea suggest me game by which i can clear my concepts of my lannguage and this directX and OpenGL..... puzzle type or some what logical ........... my project target is uploading of game to website....... learning ASP.Net .... but i am somewhat interested in graphics so i want to develop a game so please give me idea and your suggetion thank u for reply.... purvi Re: how to create project in Asp.net koolprasad200331-Jul-07 2:00 koolprasad2003 31-Jul-07 2:00  Hello purvi, following are the points to speed up your execution Avoids most of the If..Else..EndIf loops, don't use goto use "StringBuilder" class than "string" Take the use of scripting(Mostly Javascript) Use VisualStudio 2005 than VS 2003 Avoids unnecessary database connections and server trips Best of Luck, regards, koolprasad2003 If the message is useful for U then please Rate This message... Be a good listener...Because Opprtunity knoughts softly...N-Joy SEHException and FolderBrowseDialog SamM27-Jul-07 10:23 SamM 27-Jul-07 10:23  Hi, I am calling the FolderBrowserDialog.ShowDialog method and I am getting an intermittent SEHException - Control has raised an error, or something similar to that. I have Googled this, and have found some data saying that this may be a 64-bit windows problem (I'm running 64-bit Vista), and a suggested fix that says to use a static method to show the dialog. Both comments seemed to be from some poor soul like myself who has been struggling for a solution. Does anyone abouth this? Cheers SamM WinForms vs. WPF for enterprise development jsaindon27-Jul-07 6:59 jsaindon 27-Jul-07 6:59  What say you? Re: WinForms vs. WPF for enterprise development ne0h27-Jul-07 7:46 ne0h 27-Jul-07 7:46  What? -------------------------------- txtSignature Re: WinForms vs. WPF for enterprise development Paul Conrad27-Jul-07 19:53 Paul Conrad 27-Jul-07 19:53  I think he wanted to know which would be better for enterprise development, WinForms or WPF... "Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon Re: WinForms vs. WPF for enterprise development Paul Conrad27-Jul-07 19:52 Paul Conrad 27-Jul-07 19:52  Have you seen the WPF articles that have been published here? They are all pretty slick and maybe the way to go soon "Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon Re: WinForms vs. WPF for enterprise development GrinderDev30-Jul-07 4:06 GrinderDev 30-Jul-07 4:06  Keep the business logic and code separate from the UI and either direction would be just fine. I'm going with WinForms for now, simply due to the component market being pretty minimal at this point for WPF.

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