C# - Algorithm To Switch Between RGB And HSB Color Values?

Nov 8, 2010

I read the article Algorithm to Switch Between RGB and HSB Color Values

Type RGBColor
Red As Byte
Green As Byte[code]....

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Drag N' Drop Between Controls To Switch Values?

Oct 1, 2011

Long time no see. I have been feeling out other languages like perl, python, French, Russian, and c sharp.

Anyway, I have this code.

Code:
Imports System.Windows.Forms.Button
Public Class ProBtn
Inherits Button

[Code].....

I can drag and drop items from my desktop or wherever and apply certain properties and values to my button (ProBtn Class) but I don't know how to drag and drop between control to switch them.

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Speed Up Algorithm - Sieve Of Eratosthenes - Program Hangs On Really Large Values Of N (try 10 Million)

Aug 17, 2009

I've written an algorithm that I believe to be correct for computing prime numbers up to n with the Sieve of Eratosthenes. Unfortunately, this program hangs on really large values of n (try 10 million). Here is what I've written...

Protected Function Eratosthenes(ByVal n As Integer) As String
Dim maxValue As Integer = Math.Sqrt(n)
Dim values As Generic.List(Of Integer) = New Generic.List(Of Integer)

[code]...

How might I speed this algorithm up? Where are my bottlenecks?

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Background Image Will Not Switch Back From The Plain Background Color Of "control"?

Feb 19, 2011

what I am trying to accomplish worked with the code in the last thread I posted a while back. I still am using this code, however, I changed the window size to work better and gave it a nicer background for the title screen of my project. Now what I am working on at the moment is making a settings form that has 2 labels. One for "Default" Layout and one for "Plain" layout. When default is at start, the default label is disabled,and when plain layout is clicked, the button is disabled and default button is enabled.Basically, this is a toggle switch for default or plain where if one is enabled, the option for it is disabled and the other is enabled.My problem is that when I switch from Plain back to default, the background Image will not switch back from the plain background color of "control"Here is my code:

Public Class Settings
Private Sub LinkLabel1_LinkClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.LinkLabelLinkClickedEventArgs) Handles LinkLabel1.LinkClicked
MiDNiGHT.BackgroundImage = Nothing[code].......

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Implement An Algorithm Called "Diamond-Square Algorithm"?

Jun 8, 2009

I am trying to implement an Algorithm called "Diamond-Square Algorithm" I am having trouble ending it so that it retiurns the required result. So far I have the folloiwng.

[Code]...

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Get The RGB Values Of A System Color?

May 15, 2007

Given either the name or number of a system color, I would like to output the RGB values of that color.

Example:
strcolor = "ForestGreen"
or

[Code]....

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How To Get Html Values From Color Dialog

Aug 7, 2010

I'm making an HTML page writer and need to be able to add a background color with the color dialogue in vb

Here's my code:

Private Sub ColorsToolStripMenuItem_Click(ByVal sender
As System.Object,
ByVal e As System.EventArgs)
Handles ColorsToolStripMenuItem.Click

[Code].....

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Asp.net - Change The Background Color Conditionally According To Row Values?

Apr 14, 2011

I am developing a report which outputs data in a SQL Table via an ASPX page, using VB. How do I code this so that all rows containing a "1" for one of the columns, shows up as red? Here is what I have so far. This doesn't cause any errors, but it doesn't show up as red either.

I don't know if this is a problem, but the ExceedsLimit and SixInARow variables are INTs in my stored procs, but then I am declaring them as strings in the code below.

Private Sub DataGrid1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs)
If e.Item.ItemType = ListItemType.AlternatingItem Or e.Item.ItemType = ListItemType.Item Then

[Code].....

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VS 2005 Storing Color Values In Datatable?

Dec 7, 2009

Is it possible to store color values in a data table? Such that when these values are loaded into a datagrid, the datagrid will display the color.

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Change The Color From Green To Yellow To Red As Values Decrease?

Mar 24, 2009

Using VS 2008 vb.net how can I change the color from green to yellow to red as my values decrease? Actually the logic is easy but my color isn't changing.

progressbar1.forecolor = color.red -- This is not working

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Color Coding True Values In A Logical Test?

Apr 23, 2010

Can I set up a change in the font color when a certain true value comes up with a logical test - e.g. If the "value_if_true" says STOP, can I have the STOP show up in a red font and if the "value_if_false" says OK, then leave it as a black font?

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Color Shades - Loop Threw Some Lines Of R,g,b Values?

Sep 6, 2010

how to, Search for a pixel and replace it well now im stuck on finding out how i could do shades, So im using this code

Dim newImage As Bitmap = New Bitmap(PictureBox1.BackgroundImage)
Dim bmp As Bitmap = DirectCast(PictureBox1.BackgroundImage, Bitmap)
For x As Integer = 0 To bmp.Width - 1[code]....

now how could i have it. say if x,y= any shade of black Then.'Take Action' im making my own paint type tool so im jw how i could paint all black even if it is just 1 digit off from 0,0,0'<- Black' give me some example code on how to loop threw some lines of r,g,b values so i could use that in my function

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Looking For An Algorithm In C#?

Apr 14, 2010

I'll do my best to explain what the algorithm is supposed to do:There's a class 'Recipe'.ach Recipe can include other Recipes but cannot include itself or any other Recipe that includes it. So, a simple example is we have just two Recipes A & B.A,B,C(1) Recipe C Adds B(2) Recipe B Adds A(3) Recipe attempts to add C, but can't because of the relationship. C- B - A.

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RSA Algorithm

Sep 8, 2010

I'm Micah. Electrical/Electronic engineering 500 level student. I'm working on my final year project. please i need a code for the implementation of RSA algorithm in VB.NET. your assistance will be appreciated.

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Change A Forms Background System Color Schemes To Windows Default Color?

May 9, 2011

How to change a forms background system color schemes to windows default color schemes in vb.net?

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VB - Pops Up A Color Picker Dialog And Let User To Change The Background Color Of The Label

Feb 15, 2012

I have a question of VB event handler and color picker. Now I have a label, and I want when user click it, it pops up a color picker dialog and let user to change the background color of the label. Not sure how to implement this, can anyone give me a direction?

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VB 2008 - List Of Colors - To Change The Background Color Of The Combo Box To The Selected Color

Mar 3, 2010

Alright inside of a combo box I have a list of colors and I want to change the background color of the combo box to the selected color...basically this... but im not sure what the problem is here anyone have some advice or is this not possible?

CBLinerColor.BackColor() = CBLinerColor.Items.Item(0)

Basically i want dynamic code that will change the color depending on the items in the box.

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VS 2008 Background Of Form To Be The Same Color As The Window Frame Color That The User Selects

Jun 19, 2009

I want the background of my form to be the same color as the window frame color that the user selects, even if that changes. I selected System->WindowFrame as my background color, but it always remains a dark grey, regardless of what I have my window color set to. How else would I achieve what I want? I assumed I was doing it the correct way. Do I actually need code that gets the system window color and then apply it?

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Color Array Quantizer - Custom Colors And Are Not A Standard 256 Color Palette

Mar 23, 2012

I have a array of pixels. And I would like to Quantize them.

For Example

FF00FF,00FFFF stuff like that, but most are custom colors and are not a standard 256 color palette. So I need code to convert a color to a 256 color. I dont have any idea on how to do this, but thats why I came here. I do not want to use System.Graphics.Image.Palette or anything like that as this project uses arrays for images. I would like to if at all possible be able to convert a R, G, B color to 8bit, 16bit, 256bit and possibly use the HSL or NeuQuant method or something close to that, or maybe even some other methods of doing it. I do need to be able to do this for a single pixel, but I will also need a method for a array of them.

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ContextMenuStrip Color Properties - Set The Background Color Of A Selected Menu Item?

Oct 15, 2009

Right Click drop down menu using ContextMenuStrip. The background color of an unselected menu item is set with "BackColor".The color of the text of a selected menu item is set with "ForeColor".How to set the background color of a selected menu item? Default appears as a dark grey and I would like to change it.

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VS 2005 How Change Data Grid View Button Back Color And Fore Color

Dec 31, 2009

How to change the Data Gridview Button Back Color and Fore Color Based on Condition in Vb.net2005. i'm Attaching the gif toooo

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How To Switch Between .NET And C#

Apr 23, 2012

how to switch between VB.NET and C#. I need this information because I have a project that needs application building and the programming language is C#.I found a good sample program on the Internet which uses an SDK called Ozeki SIP SDK.

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Change Item Text Color Or Background Color In ListBox In .NET 1.1

Jun 17, 2009

I am using .NET 1.1, so I don't have the access to listitem object. I would like to change the text color or the background color of certain items in a listbox. can it do it in .NET 1.1?

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Color Picker Luke Office 2007 Color Chooser?

Feb 13, 2010

I need to a color picker luke office 2007 color chooser this must be as "toolstripItem" for adding to toolbar!

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Vb.2010 - Load All Known Color Names From Color.xxxxxxx In A ComboBox

Jan 28, 2012

I am trying to write code to load all nown color names from color.xxxxxxx in a ComboBox, but can not get it right. I can not find the Color Enum member. What I had in mind was something like this:

[Code]....

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Algorithm For VB Editor?

Dec 26, 2009

is the algorithm for VB editor released anywhere? because i'm trying to create my own editor that gives various options like Linking and self defined array functions (see below) such that one edit can update several others in various places, but i do still wish to have the auto formatting VB editor provides us with.an example of a self defined array function (count):we can transform this:

Public Class test
Private Shared number_of_methods As Integer = 2
Public Function get_number_of_methods_juz_an_example() As Integer
Return number_of_methods

[code]....

well of course instead of the code it would be just click and select (i wrote out the code in <> just to show what's happening)

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BLS Algorithm Guide

Mar 15, 2012

i need some tutorial to implement BLS (Boneh-Lynn-Shacham) signature algorithm to create private key and public key to encrypt a message.I need tutorial to implement this in VB.NET.

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Converting And Algorithm In C# To C?

Oct 21, 2005

I found an algorithm in C# that I need to convert to C. Problem is, I have never used C# so the syntax is really strange to me.

Implementation of Berlekamp-Massey algorithm for calculating linear complexity of binary sequence
s = byte array with binary sequence
returns Length of LFSR with smallest length which generates s

[Code].....

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Create My Own Algorithm?

Dec 14, 2010

I want create my own algorithm

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Using Own Encryption Algorithm In VB?

Aug 21, 2009

How would I be able to use my own Encryption Algorithm in my program such as encrypting text. I havn't been able to figure this out.

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