C#

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Re: caspol.exe and sn.exe realted? imran_rafique15-Dec-02 9:44 imran_rafique 15-Dec-02 9:44  its not working for vc++.net and managed code my code is not working after using these lines although c# code is working but the problem is with vc++.net managed code. ---------------------------------------- sn -k mykey.snk [assembly:KeyFileAttribute("mykey.snk")] ----------------------------------------- is there any other step to perform pls tell ? r00d0034@yahoo.com Re: caspol.exe and sn.exe realted? James T. Johnson15-Dec-02 12:30 James T. Johnson 15-Dec-02 12:30  imran_rafique wrote: its not working for vc++.net and managed code By not working do you mean it isn't compiling? I assume that is the case because I forgot that the actual attribute name is [assembly:AssemblyKeyFileAttribute("mykey.snk")]; I forgot the Assembly portion of the name James "The elastic retreat rings the close of play as the last wave uncovers the newfangled way. But your new shoes are worn at the heels and your suntan does rapidly peel and your wise men don't know how it feels to be thick as a brick." "Thick as a Brick" from Thick as a Brick, Jethro Tull 1972 Problem with Image saving Smitha Nishant14-Dec-02 19:21 Smitha Nishant 14-Dec-02 19:21  Friends, I am trying to save the image in a picturebox to a file. It returns a gdi+ error This is what I do : tmpfileloc= apppath + "temp_make.jpg"; FileStream fs= new FileStream(tmpfileloc,FileMode.OpenOrCreate,FileAccess.Write); Image tmpimg= pictureBox1.Image; tmpimg.Save(fs,ImageFormat.Jpeg); fs.Close(); And the error I am getting is this : An unhandled exception of type 'System.Runtime.InteropServices.ExternalException' occurred in system.drawing.dll Additional information: A generic error occurred in GDI+. Whats wrong ? Tweety If you can smile when things go wrong, you have someone in mind to blame Re: Problem with Image saving leppie14-Dec-02 19:31 leppie 14-Dec-02 19:31  The only thing I can think of that perhaps the image format is not 24bppRGB. Maybe the stream need to have read rights as well or you perhaps dont have write access to the disk. Hope this helps WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support. Re: Problem with Image saving Smitha Nishant14-Dec-02 19:46 Smitha Nishant 14-Dec-02 19:46  Hi Leppie, Thanks for the prompt reply. I am loading the image into the picturebox from a JPG file in my desktop. And the program does create a 0 byte file, when I try to save it. Then it crashes. Specifying the fileaccess as FileAccess.ReadWrite doesn't stop the error. What is 24bppRGB format ? Tweety If you can smile when things go wrong, you have someone in mind to blame Re: Problem with Image saving Smitha Nishant14-Dec-02 21:30 Smitha Nishant 14-Dec-02 21:30  leppie wrote: The only thing I can think of that perhaps the image format is not 24bppRGB. The way I was loading the picture into the picturebox was not perfect. I think that corrupted the image format. I fixed the issue. Thanks. Tweety If you can smile when things go wrong, you have someone in mind to blame Web Controls vs HTML controls JoeMcK14-Dec-02 15:14 JoeMcK 14-Dec-02 15:14  Why don't my web controls (e.g. buttons) display in my browser when I run? If I use an HTML button, it shows up fine. Both appear to be server side controls (both have runat="server". What's the difference between Web Form controls and HTML controls? Joe Re: Web Controls vs HTML controls leppie14-Dec-02 20:47 leppie 14-Dec-02 20:47  JoeMcK wrote: Why don't my web controls (e.g. buttons) display in my browser when I run? From who are you running? There can be many reasons, be a bit more specific. Maybe you are not running fast enough WebControls are server-side controls that normally will do some processing where HTML controls are basically literal controls. Both have a runat=server attribute, although its not required for HTML controls, but they are there so a literal control can "controlled" referenced from the server-side. You might want to post further ASP.NET questions in the ASP.NET forum (yes we have one). WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support. Re: Web Controls vs HTML controls JoeMcK15-Dec-02 9:18 JoeMcK 15-Dec-02 9:18  I've been trying to keep my samples as simple as possible...create a new project (web app). On the grid that's displayed, drop a web form button onto the grid from the toolbox...compile, then execute and the button doesn't show. Only labels show up. I have a feeling it's something silly that I'm just not aware of. It's been frustrating to track down why I don't see what I expect. When I drop an HTML button (from the toolbox) onto the grid, it shows up when I execute. Joe What kind of control should I use? Paul Silvernail14-Dec-02 12:40 Paul Silvernail 14-Dec-02 12:40  I was hoping to have a listview control in details view, where each column was bound to a data source. When the user clicked in a box (grid lines on obviously) a drop down box filled with the bound data should appear. Does anyone know if such a control exist . Maybe point me to an article detailing the procedure. Thanks in advance, Paul Re: What kind of control should I use? leppie14-Dec-02 12:51 leppie 14-Dec-02 12:51  I think you can do that with the datagrid, but to be honest I hate that thing. Either here (on CP) or on GotDotNet there should be a sample. WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support. how can i encrypt a hole folder? instead of 1 file at a time. jtmtv1814-Dec-02 11:28 jtmtv18 14-Dec-02 11:28  i'am currently working on a encryption tool using des and rc2 algorithms. The program works and all but is set up too only encrypt one file at a time. im trying to find a way to encrypt a hole folder just by typing the directey i.e "C:\\my folder". I have just started programming...in c#(or any lauguage for that matter) so i need help with this perticular subject. I have been going at this a diffrent way (allowing the user to selected a file and writing the FileName to a listbox..then pulling the files off the list box 1 by 1 to be encrypted). please help me if you can. Re: how can i encrypt a hole folder? instead of 1 file at a time. leppie14-Dec-02 11:51 leppie 14-Dec-02 11:51  Directory.GetFiles returns a string[] with filenames and Directory.GetDirectories to get the directories. Then just setup a recursive function to "crawl" all the subdirectories. There is an recursive example on MSDN at this topic. Cheers WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support. Re: how can i encrypt a hole folder? instead of 1 file at a time. jtmtv1814-Dec-02 12:00 jtmtv18 14-Dec-02 12:00  i went to msdn and found additional stuff (i go there alot its just so damn big you know it ?) thanks for pointing me in the right direction. Jesse M. Re: how can i encrypt a hole folder? instead of 1 file at a time. leppie14-Dec-02 12:54 leppie 14-Dec-02 12:54  jtmtv18 wrote: (i go there alot its just so damn big you know it ?) Yes, and thank the lord that I dont do C/C++/VB/ATL/STL as well, only .NET at least thats better organized WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support. mouse is busy or not? imran_rafique14-Dec-02 10:20 imran_rafique 14-Dec-02 10:20  some time mouse shows busy sign can any body tell how i may check that mouse is busy or not? r00d0034@yahoo.com Re: mouse is busy or not? Burt Harris15-Dec-02 8:50 Burt Harris 15-Dec-02 8:50  The hourglass shape of the mouse cursor generally indicates that an applicaiton (as opposed to the mouse itself) is busy. If you're writing an application in C#, this is typically controlled with the Cursor.Current static property (in System.Windows.Forms). I'm not sure this will do what you want, but it's the right general direction. Burt Harris C++ to C# conversion? Zibar14-Dec-02 5:55 Zibar 14-Dec-02 5:55  This piece of code is from the DX8 tutorial: VOID* pVertices; if( FAILED( g_pVB->Lock( 0, sizeof(g_Vertices), (BYTE**)&pVertices, 0 ) ) ) return E_FAIL; memcpy( pVertices, g_Vertices, sizeof(g_Vertices) ); g_pVB->Unlock(); Is it possible to translate it in C#? I'm trying to write a simple DX8 application as I use only C#. I'm using the VB type lib but obviously there are functions not available in C# like D3DVertexBuffer8SetData, that replaces the above C++ code in VB. While this exercise might be a little unpractical it actually helps me better understand the difference between managed and unmanaged . Any ideas how to set up and run DX8 in C# (is it possible at all; is it possible to do it in a' managed' way)? Thank you Z. Re: C++ to C# conversion? David Stone14-Dec-02 6:01 David Stone 14-Dec-02 6:01  DX8 is a pain to work with in C#. If you can, I would just wait a few months for the DX9 SDK to come out. That'll have C# support. I don't know whether it's just the light but I swear the database server gives me dirty looks everytime I wander past. -Chris Maunder Microsoft has reinvented the wheel, this time they made it round. -Peterchen on VS.NET Re: C++ to C# conversion? leppie14-Dec-02 6:19 leppie 14-Dec-02 6:19  David Stone wrote: I would just wait a few months for the DX9 SDK to come out Rumours are that it will be out before the end of the year The beta's looked very promising, but unfortunately no SDK was available, although you dont need the SDK to write Managed DX9 apps. WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support. Re: C++ to C# conversion? David Stone14-Dec-02 6:57 David Stone 14-Dec-02 6:57  leppie wrote: The beta's looked very promising Not that adventurous. I install betas all the time...but I wasn't quite ready to install that one. Especially when you can't uninstall it... leppie wrote: you dont need the SDK to write Managed DX9 apps. Huh? Yeah you do... I think you mean you don't need it to run DX9 apps. I don't know whether it's just the light but I swear the database server gives me dirty looks everytime I wander past. -Chris Maunder Microsoft has reinvented the wheel, this time they made it round. -Peterchen on VS.NET Re: C++ to C# conversion? leppie14-Dec-02 7:04 leppie 14-Dec-02 7:04  David Stone wrote: Huh? Yeah you do... I think you mean you don't need it to run DX9 apps. No you dont! And yes I have installed it, and yes I re-installed XP (5 times different problem though) to get old DX8.1 back, and finally YES, you CAN write mDX9 apps, but it not much help without documentation and examples. That is part of the beauty of .NET and the meta info it can provide you with. WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support. Re: C++ to C# conversion? James T. Johnson14-Dec-02 6:05 James T. Johnson 14-Dec-02 6:05  Personally...I would wait for DX9 to come out before trying to do anything DX related with .NET. Its not that it's impossible, but its just not very pretty. Alternatively instead of using the DX8 wrappers you can try to create the COM objects yourself using COM interop. Adam Nathan's book .NET and COM: The Complete Interoperability Guide (SAMS press) even has an entire chapter dedicated to creating a game using DirectX from .NET. James "The elastic retreat rings the close of play as the last wave uncovers the newfangled way. But your new shoes are worn at the heels and your suntan does rapidly peel and your wise men don't know how it feels to be thick as a brick." "Thick as a Brick" from Thick as a Brick, Jethro Tull 1972 Re: C++ to C# conversion? Zibar14-Dec-02 6:17 Zibar 14-Dec-02 6:17  thank you everybody for the answers, your are of course right but I still would like to know if there is a way to overcome such a piece of code (so let me take it out of the context of dx): VOID* pVertices; if( FAILED( g_pVB->Lock( 0, sizeof(g_Vertices), (BYTE**)&pVertices, 0 ) ) ) return E_FAIL; memcpy( pVertices, g_Vertices, sizeof(g_Vertices) ); these VOID* and memcopy iritate me too much! Re: C++ to C# conversion? leppie14-Dec-02 6:46 leppie 14-Dec-02 6:46  VOID * is just an "generic" IntPtr. Memcpy type operations are available in the Marshal class. WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support.

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