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A quick overview of my project aim might help you understand what I am trying to achieve. I am trying to create an area on a form where users can draw a turing machine! For those who dont know what one is , it does not matter too much (although i believe every computer scientist should at least have a basic background of one as it is the foundations of computing! it basically defines what can and cannot be computed).
Basically, i need an area where users can draw circles(which represent the states of the machines) and lines connecting these circles (which represent the transitions). I would like an place where users can click on a icon in the toolbar and then be able to click on the space to create the relevant shape.
I would appreciate any comments on where i can start looking. I've been looking around, and gdi's seem to turn up, but i'm not sure if this is the best way to approach this. Another semi-solution i have thought of is just to create images of these shapes and create a new instance?? of them as required! I am totally lost...
Thanks for your time and effort!
million thanks,
zoe xx:
confused:
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If you're using predefined shapes, then you should certainly use an OO structure to define them. If you're using tools to draw freely, the same applies.
Basically, the way I'd do this is to have a base tool class, and have your application always use an instance of it ( the currently selected tool ). Make a collection of drawing events, generated by these tools, and iterate through it to draw your image. This makes undo/redo really easy to impliment as well.
Christian Graus - Microsoft MVP - C++
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I have seen an article in this site posted by "rainman_63". He has explained UPC-A barcode generation in C# very well. I am a beginner in VB and I need somebody who can convert that c# code into VB6. Your help is greately appreciated.
Regards
Rupesh
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what don't you understand ?
C# is very easy to translate into VB.NET and vice versa as they are both .NET languages (more difficult with C++ in MFC for example)
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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Here is a toolstrip.
I add a ToolStripDropDownButton on it.
How to add ToolStripDropDownItem by code?
Thanks!
z.y.x.
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Hi, How do I search for personal folders in outlook? With NameSpace.GetDefaultFolder, I can only search folders in Mailbox (such inbox, outbox etc) but not in personal folders. Does anybody know how to do this. Thank you
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Is there a tool/app/program that takes C# soln as input and creates it equivalent VB.NET soln?
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Yes, there are several. But why ruin perfectly good C# code ? :P
Typing 'C# VB.NET convert' into google gives you a ton of matches. Why do people not use google before asking these things ?
Christian Graus - Microsoft MVP - C++
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Our product "Instant VB" converts entire projects (and snippets). Try our Demo Edition (downloadable at www.instantvb.com).
However, we do not offer the ability to enter an entire solution. The sole reason for this is that when converting a solution it is critical to start at the project referenced by the others and work back. Otherwise the manual adjustments necessary in the referenced project are masked by the compile errors in the other project and it hampers the ability to get the entire solution compilable.
David Anton
Tangible Software Solutions
www.tangiblesoftwaresolutions.com
Home of the Instant C# VB.NET to C# Converter and the Instant VB C# to VB.NET Converter
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So long as people are plugging their products, I used C Sharpener to convert VB.NET to C#, and they have one that goes the other way. C Sharpener was brilliant, it worked really well. The URL is www.elegancetech.com[^]
Christian Graus - Microsoft MVP - C++
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I need serial number for this program.
thanks 4 help
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Great! They take Visa, Master Card, American Express, personal checks, maybe PayPal, ...
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Thanks for advice, i thought free for pay i can do it but i mean free serial number.
thanks again
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You must be joking. You write software, but you want to steal from other people who do the same ?
Christian Graus - Microsoft MVP - C++
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Hi All,
I have a dsm file which was written for VC++ 6 IDE. I want to use this wih VC++ .NET IDE. can some one tell me what changes i should make so that it can run with VC++ .NET IDe also
Thanks in advance,
Regards
Raghu
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Your best bet is to look at Microsoft's converted VC6 sample macros that have been converted to VB .NET. (They're in the file DevStudio6Editor in MacroExplorer.) Then study the differences and work from there.
There is also a specific VS add-ins and macros Yahoo group you could try posting to here:
http://groups.yahoo.com/group/vsnetaddin/?yguid=75841244[^]
Kevin
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Dear Friends
I have a send email program in VB.NET my programm is running well it sents the mail file in c:\Inetpub\mailroot\Queue but from there it is not sending to the recepient. the mail files are still in Queue folder even i am connected to the internet and even my smtp service is running well.
please help me. your quick response will be highly appreciated.
Thanks
Patel Murtuza
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hi..I could run word with VB6 now I want to save the doc file on server ..how can do that?
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Anonymous wrote:
hi..I could run word with VB6 now I want to save the doc file on server ..how can do that?
You want to save the file using the vb6 code or using the save command in word. I think to save the file in the server you must have appropriate permission to write the file to any specific folder (or mapped drive) on the server then it is enough.
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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How do I setup my project to install the .net framework automatically
BINARY
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What install program are you using ? You can't write a VB.NET program to install .NET, that's impossible. If you want to write your own code, it''ll have to be in C++.
Christian Graus - Microsoft MVP - C++
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hi friends,
i'm using vb.net for devloping a web application. my code shows nothing wrong. but when i click a button to add the entries this error is being shown. my other applications are also developed in the same manner but they do not show error. the only difference in this application is that i'm tring to enter data into database from text property of a label. can this be a cause. i'm unable to figure out please help me.
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 198: If DropDownList1.SelectedItem.Text = "Not Available" Then
Line 199: insert = "INSERT INTO Transmittal(Project_Name, Username, [Date], [To], Kind_Attn, Title, Drw_Doc_Num, Copies, Rev_Num, Action)" + "VALUES ('" + TextBox7.Text + "', '" + Label10.Text + "', '" + Label17.Text + "', '" + TextBox1.Text + "', '" + TextBox2.Text + "', '" + TextBox10.Text + "', '" + TextBox11.Text + "', '" + TextBox8.Text + "', '" + TextBox5.Text + "', '" + TextBox6.Text + "' )"
Line 200: OleDbDataAdapter1.InsertCommand.CommandText = (insert)
Line 201: OleDbDataAdapter1.InsertCommand.ExecuteNonQuery()
Line 202: OleDbConnection1.Close()
Source File: C:\Inetpub\wwwroot\OM\trans.aspx.vb Line: 200
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
OM.trans.Button4_Click(Object sender, EventArgs e) in C:\Inetpub\wwwroot\OM\trans.aspx.vb:200
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +108
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +57
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain() +1263
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