C# - Algorithm To Switch Between RGB And HSB Color Values?
Nov 8, 2010I read the article Algorithm to Switch Between RGB and HSB Color Values
Type RGBColor
Red As Byte
Green As Byte[code]....
I read the article Algorithm to Switch Between RGB and HSB Color Values
Type RGBColor
Red As Byte
Green As Byte[code]....
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.
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?
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].......
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]...
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]....
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].....
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].....
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.
View 2 RepliesUsing 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
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?
View 1 Replieshow 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
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.
View 4 RepliesI'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.
View 2 RepliesHow to change a forms background system color schemes to windows default color schemes in vb.net?
View 2 RepliesI 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?
View 2 RepliesAlright 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.
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?
View 4 RepliesI 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.
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.
View 2 RepliesHow to change the Data Gridview Button Back Color and Fore Color Based on Condition in Vb.net2005. i'm Attaching the gif toooo
View 5 Replieshow 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.
View 1 RepliesI 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?
View 5 RepliesI need to a color picker luke office 2007 color chooser this must be as "toolstripItem" for adding to toolbar!
View 1 RepliesI 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]....
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)
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.
View 1 RepliesI 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].....
I want create my own algorithm
View 1 RepliesHow 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.
View 1 Replies