I'm looking to sell some Applications i have made. What's the best way i can protect my applications from being spread around easily? I know there's no Sure-fire way of protecting my App.. but there must be a good program or something that will give me a helping hand.
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if anyone here has ever worked with Sentinal HASP keys to protect applications.I understand how to make features in the keys but i do not understand what i need to include in my project to have it authenticate against the HASP at runtime.
View 3 RepliesI am writing a program that and like to implement data verification system. It needs to return a unique string for any value entered. My question boils down to: is it possible for an AES function to return the same value for two different entries? The source values will becoming from data held on a magnetic stripe card.
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I posted this through my phone originally, and I am now just getting back to this post.
I've been looking around the web and while reading Wikipedia's article on SHA, I see that SHA-2 (SHA-256/224, SHA-512/384) have no detected collisions (assuming the article is accurate/up-to-date). This is desirable. Any recommendations on what version of SHA-2 I should use?
I have downloaded 5 apps so far to get an idea on watching a dir for a file created, but every app i run i get an error like this
View 7 RepliesI've just finished installing VS2010 on my computer. I have a project I built in 2003 that I'm trying to open in 2010. It went through the conversion process and generated this error: System.SystemException - The type library importer encountered an error during type verification. Try importing without class members. : System.MissingMethodException - Method not found: 'Void
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i would like to scan all the processes(aplications) running in a system before starting my program. and also need to close some programs before starting my program.how to read all the processes ruining in a system one by one.
View 1 RepliesThis app will allow user to select a file, folder or an installed application and then assign it a hotkey...My question is how can I get the complete path of a file, folder, or application in vb like in many application the browse button shows the complete path in a textbox, and then how this app will allow user to assign it a hotkey? And how am I going to save the path and hotkey in a database?
View 1 RepliesRecord keyboard inputs to open applications. This feature will allow users to assign hotkeys to
View 6 RepliesIm trying create a small payroll system using VB.Net windows form applications. The problem im currently facing is when im updating the datagridview. But my update doesnt work. IM using dataset and databinding source. I want to udpate the datagrid view and automatically update the database. [code]
View 1 Repliesi developing a application in vb.net using third party tool Farpoint Spread control i need to set the position of spread while we enter in another spread cell?
View 1 RepliesI am in the process of converting VB6 in to Dot.Net 10. Phew. Fast way to learn a language
Currow value=24 in this instance
Arsheet2b = ObjExcelB.Sheets(1).Range("A2:L" & curRow).value
<error>
System.InvalidCastException was unhandled
Message=Unable to cast object of type 'System.Object[,]' to type 'System.String[]'.
</error>
I can restrict the sheet from A1:A24 (contains 2010) and I get the same error.
Multicolumn Combo In Farpoint Spread
View 1 Repliesat the moment I have a small application and need to take information from an object and display it into an excel file, using the Microsoft.office.interop class I've been able to write to the file, and it shows one by one the records being added, however about once every 3 times I try it, the spreadsheet stops filling somewhere between the 300th and 600th record, I have 6,000 in total and it's not breaking every time, I put a check after it finishes to see whether the last record is filled in but the code never reaches that point and I'm unsure of what's happening I also don't know how to debug the problem as it'd mean going through 6,000 loops to check for it stopping... which might not even happen?
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i what to make spread sheet program like excel and i what it to be able read spread sheets and create them
View 1 RepliesI have a problem with farpoint spread sheet, that while loading the data into the spread sheet, the sheet refreshes each time a value is set.
I have large number of rows and columns so, the sheet take quite large time till loading.
any idea how to disable the refresh and enable it again after the data is completely loaded.
I want to transfer not EXPORT, all the datas from a table to a Excell Spread sheet thru vb.Fir eg Table name is Lab1 have 2 columns.
Col1 = Name
Col2 = Age
I want to write all the datas to Excell as in:
Name Age
Tom 29
Sally 38
Sam 60
I need to copy data using Vb.net if possible from one excel spreadworbook to another and place the data into the correct columns in the existing excel spreadsheet. The column titles of the spreadsheets match up, I have several templates I need to place data into and the order of the columns is different in each template so I need a way of searching for a column header in the template and then copying the data into that column.
View 1 RepliesI have a psychology experiment that has users respond to specific text or pictures by pressing either a button for "similar" or a button for "opposite" and then the program records the time from the presentation of the stimuli to the time they press one of the buttons as the latency. I have the information ans some other data successfully exporting to a text document but would like to have just the latency data also go into an excel spreadsheet for easier analysis. Here is the code for one of my buttons that currently writes to the text document:
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I am working on a project that is used for key broadcasting. Don't worry nothing illegal, I'm making a multibox application for world of warcraft. However I am having trouble when it comes to launching and manipulating other applications from another.
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Maybe it's a simple quiestion but i realy don't know how to solve it... i've searched on google bu i did not find any clue how can i check the MaskedTextBox..I have put the mask "##/##/####" (to serve as a date input) and i dont know how can i check this do not be empty... i have tried "__/__/____" and also " / / " and "##/##/####" but nothings working.
View 4 Repliesi create project using VB6 when i try to drag cantrol in my form it give me error (Cannot load verification module) the control is " fplivx activeX control module "
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i have been trying to register VB08 express for over an hour and have not recieved the verification email yet. has this happened to anyone yet? I tried multiple email addresses, checked junk folder...refreshed, sign out...etc.
View 2 RepliesI have an VB.net Login Module and what I want to do in this module is to know whether the account being logged in is being used or it's online. Ex:
If I logged in then it will say "User is already logged in" etc etc. I am using MS SQL server 2008 r2 for may database.
Imports System.Data
Imports System.Data.SqlClient
Public Class Login
Public sstatus As String
Private Sub GlassButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GlassButton1.Click
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I'm new with VB programming and would like to know if anyone can look/test this code I have written. I don't have the ability to test right now because I'm at work and can't get VB installed on my desktop. This program is supposed to display the amount of gross pay for employees based on their weekly sales (if $5000 or more times 9% + $200) while using a one dimensional array.
View 2 RepliesMy project requires users to be 18+. I have supplied a textbox for birthdate entry, but I don't know if that's the best way. Also, I don't know how to format it so that it only accepts date entry.
Next is the calculation part... yikes.
today - bithday = age
Code:
Private Sub Birthday_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Birthday.TextChanged
End Sub
I am just down right confused right now... I made a slight modification to my games saving system, and it worked before this modification... I only changed "one" thing in the saving and loading of the save file system.
now it went from working when trying to verify the save data, to throwing this error when I enter the username of "test" and the password of "test...
there is not a save file for that combination of data, and prior to the save/load system edits, it would realize that, and throw a message box error that I made for that senario... but now, it does this when trying to load the human class. that save file that it is trying to load and verify that does not exist is supposed to be "test the human"
"Could not find a part of the path 'F:\Ashes of Redemption\Ashes Of Redemption(01-02-2012)\Ashes Of Redemption\bin\Debug100 the 250\100 the 250.txt'."
it is supposed to throw my message box stating that there is no file in that combination, and the edits that I made only write a description of what each line of code is in the game... I had also made a variable called "nulldata" that takes those lines of text, and keeps them out of the games loaded data, so for each string of text that I added, it is basically rendered useless upon the save file being loaded...if you enter valid save information, then it loads just fine... so I am just plain confused right now.
the NEW save function'[code...]
now I am going to root around in my code now to see if I cant figure out by chance what is going on here.
Lets say I have function returns an object and that object has 10 properties. for example
myStudent.ID
myStudent.Name
myStudent.Surname
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Is there anyway to make a program that auto detect the verification code ..like when sign up for a site..because i want to make a program like roboforum.
View 11 RepliesHow can I set a verification that something is checked in a set of radio buttons within a group box? So... groupbox1 has rad1, rad2, rad3. I want to verify that at least one of them is checked. I was going to do a select case, but I can't figure the syntax for the cases... Visual Studio 2008, btw
View 12 RepliesMy app is a fairly simple and im sure with the right knowledge this would take 2 minutes.. but sadly iv been at it for hours. So my scenario here is a huge network with 20+ file servers all with data spread out across them it can take hours to find the folder required.
Hence this app.. so it consist of a input box, progress bar and a button, using FileSystemObject I plan to interrogate a directory to see if a folder exists (folder specified by user input) however it need to check multiple directories, in my old app I used a list box which wrote to a text file allowing the user to add additional directories then using if statements proceeded through the servers.. however they have added that much that my IF's have ran out really because i know it should have been a loop
Imports System
Imports System.IO
Public Class Frm_main
Private Const FILE_NAME As String = "C:directories.txt"
Dim objReader As New System.IO.StreamReader(FILE_NAME)
Dim Lines() As String = IO.File.ReadAllLines(FILE_NAME)
Dim Dir As String
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