Check Two Colors Against Each Other?

Mar 5, 2012

I am trying to check two colors against each other with this Test but it does not appear to work. Can anyone suggest what I am doing wrong. :-

Do While (ptColor = Panel1.BackColor)
lft.X += 1
secPt = PointToScreen(lft)
ptColor = GetColor()
cnt += 1
Loop

When I look at the ARGB values at a breakpoint ,then numerical values of the three component colors are the same but the loop does not get executed. ?

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Interface And Graphics :: Check For All Colors In An Image Without Sweeping Through All Pixels?

Apr 26, 2011

I'd like to check for all colors in an image. I've already came up with this:

Code:
Dim lst As New List(Of Color)
Dim img As Bitmap = System.Drawing.Bitmap.FromFile("C:image.jpg")
For x = 0 To img.Width - 1

[code]....

Unfortunately this needs to sweep through all the pixels, and it's EXTREMELY slow... method to get all colors in an image without sweeping through all pixels?

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How To Do Colors From Sql

Aug 21, 2009

I have another form which shows the colors from the sql server table when i click a button called show . I have arranged 15 buttons as you show me previously When i click a button called show color , the colos in the sql server tables will be shown This is my aim. for example the itm in the combobox is TATA SUMO the colors are totally 7 in the table of database , how all the colors will shown

Private Sub showcolor_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles showcolor.Click
Dim selectsq As String

[code].....

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Changing Colors Using Tab Key?

Sep 13, 2010

i just want to know about programming in vb.net. it is based on traffic light first i have 3 text boxes. now when i hit the tab key it is supposed to change in green, yellow and then red. i got the change of color but i do not know how to assign the tab key in it.

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Colors Into TextBoxes?

Nov 26, 2009

I got hold of this code to give RGB components of a pixel in a

PictureBox(picPic): Code:Dim pnt As Point = New Point(txtXpos.Text, txtYpos.Text) Dim RGBstring As String = ((TryCast(picPic.Image, Bitmap)).GetPixel(pnt.X,

[code]....

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Defining Own Pen Colors?

Oct 2, 2009

Am I just limited to the VB pen colors, e.g color.orange, color.black etc or can I define my own rgb colors? If so, how do I do that?

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Hex Colors From Strings In VB

Apr 27, 2009

I'm creating a little program to help my students to understand colour-mixing in Hex for their Web Design course. What I've got so far, is as follows: The user is presented with 3 sliders (one each for R, G and B) and a button. The 3 sliders each go from 0 to 15 - and when the user hits the "Show me!" button, Select Case jobbies translate the 0 to 15 values as seen here:

[Code]...

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How To Invert Colors

Feb 28, 2010

this is what i need to do: In the right-hand label, invert the colors of the image. Hint: the inverting white should give black and inverting black should give white. Inverting red (255,0,0) gives cyan (0,255,255). visual basic express 2008 this is what i have, what do i need to make changes to in order to accomplish this?

[Code]...

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Make A Pen Have Two Colors?

May 12, 2010

I have a code like this Dim p as new pen(color.blue)

and i need the pen to have two colors so its like ty dye. It is a drawing program so the pen needs to have two colors.

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50 Random Circles With Different Colors?

Feb 9, 2011

I am working on a program to generate 50 circles starting with the smallest in the center of the form. The circles do not over lap and the appear to grow outward. Each circle has to be a random color. I have the code that generates what I need but all the circles are the same color. I was thinking about either using an array to hold each circle and color as to not assign the same color to all of them but not sure about putting a graphic in an array. I also think maybe a nested loop of some sort but was unable to figure one out.

Private Sub mainForm_click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Click
Dim penColor As New Pen(Color.FromArgb(Rnd() * 255, Rnd() * 255, Rnd() * 255, Rnd() * 255), 2)

[Code]......

This works to do what I need to get done, I just need each circle to have a random color as it is drawn.

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Button Border Colors?

Jan 28, 2011

Is there a way to change the border color for buttons created using vb.net?

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Calling Colors From A .txt File

Jun 14, 2011

Beginner question of the day: I have a .txt file that is a series of color names like this-

[Code]...

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Can .net Click Specific Colors

Sep 5, 2011

Is it possible for VB.net to click colors on a screen? and if so, how?

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Change Some Colors On A Website?

Apr 6, 2012

I'm trying to change some colors on a website. The css look like this:

HTML
TD.RED {
font-family: Tahoma,Verdana,Arial,Helvetica;
font-size: 10pt;

[Code].....

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Changing Colors 'linking LED'

Sep 18, 2010

Individually the Draw red and draw white work. The delays work.When in series the only color seen is the last color. Why? [code]

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Debuging - An Array For Colors ?

Jun 6, 2011

Essentially I am searching an array for colors. If there is no input, on button click you get an error. If the color does not exist you get an error. If it exists then it tells you. The latter two events are not happening.

Public Class Form1

Dim count As Integer
Dim Crayola() As String
Private Sub Form1_Load(ByVal sender As System.Object, ByValue As System.EventArgs)

[CODE]...

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Fading Between 2 User Specified Colors

Dec 5, 2011

A while ago I wrote something that was incredibly simple, however it was 3 years ago and I can't for the life of me find where I saved it(upgraded computers twice since then and a few things managed to disapear in the process) I tried for the last few days trying to figure out how I did it and realized that someone may be able to see what I cannot.

[Code]...

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How Colors Will Send To Sql Server

Aug 20, 2009

I have 15 checkboxes in my vb.net form during runtime some of the checkboxes in control array are set backcolor by the colordialog using the following code

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As Integer
For a = 1 To 15

[code]....

My question is i want to send the colors filled in the check boxes into the sql server table throug insertsql statement my trial code is as follows but it is wrong

insertsql = "insert into colordetails(model,color)values('" & ComboBox1.Text & "','" & checkarray(a).BackColor & "')"

colordetails in tablename in sql server and model and color are field names in that table?

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How To Create An Array Of Colors

Jan 5, 2010

I'm not sure whether this post should be in the System.Drawing topic, but here goes... I need to create an array of colors to be applied into a Dundas Chart. The chart code is not the issue, but I can't seem to create an array of colours. Here's what I need to be able to do.

[Code]...

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How To Create Array Of Colors

Oct 25, 2009

I am trying to create an array of colors. approach 2 doesn't work and I do not know why
Code:
'approach 1: works
Dim list As Color() = New Color() {Color.FromArgb(255, 0, 0), Color.FromArgb(0, 255, 0), Color.FromArgb(0, 0, 255)}

Code:
'approach 2: fails.. why?
Dim list() As Color = New Color() {Color.FromArgb(255, 0, 0), Color.FromArgb(0, 255, 0), Color.FromArgb(0, 0, 255)}
If instead I wish to create an array of strings, both approach works, that's weird.

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How To Update The Colors Of The Image

Apr 25, 2009

I have an image like this [URL]...So its possible whether the user able to change color of each block ie:A,B,C,D 7 etc.. he has able to fill the color of the box at runtime.. and it has been saved.

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IDE :: Invert Colors Using Express?

Feb 16, 2009

Not for pictures, but for text and backgrounds also in the form. Is this possible?

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Image Colors In Pdf Files?

Mar 13, 2009

I'm creating a program to generate PDF files in VB.Net.Everything is working fine except that the image is being displayed with a blue background while the image provided doesn't have any.Following are the lines of code being used:

sColor = IIf(mvarEncodeASCII85, ToASCII85(ImgColor),
(System.Text.Encoding.GetEncoding(1252).GetS

[code].....

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Listbox With 2 Highlight Colors?

Mar 12, 2010

I'm working on a playlist and would like to have 2 different highlight colors. I'm using the DrawItem Event with the following code..

Private Sub PlaylistBox1_DrawItem(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles PlaylistBox1.DrawItem
e.DrawBackground()

[Code]....

I want the item above the selected item to be highlighted in red. Basically what I'm looking for is the select item is green"next cue" and the previous item is red meaning it is currently playing.

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ListBox With Alternate Row Colors

Nov 19, 2011

I know how to have alternate row colors with ListView. But how about with ListBox? I've run a search. I read in some web sites where they say you can't. Is that true? Meanwhile, I've done something like:
For i As Integer = 0 To ListBox1.Items.Count - 1 Step 1
If i Mod 2 = 0 Then
ListBox1. BackColor = Color.FromArgb(150, 250, 255)
Else
ListBox1. BackColor = Color.White
End If
Next i
with ListBox's DrawItem event. And it doesn't work.

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Multiple Colors In A Textbox?

Jun 9, 2011

how to have multiple colors in a textbox. Is this possible, or must I use a richtextbox?. I would like to keep it simple if possible by setting it up in a standard textbox.

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Send Colors To Sql Server?

Aug 20, 2009

I have 15 checkboxes in my vb.net form they have been set by following code

Private Sub form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
SetControlArray()
End Sub
Sub SetControlArray()

[code]....

My question is i want to send the colors filled in the check boxes into the sql server table throug insertsql statement. at the same time the name in the textbox24 is also added to the sql table. The table has 2 fields models and colors if one model is inserted into the table cell and 5 colors are selected in the check boxes the table is fill with the name of the model is same and colors are different my trial code is as follows but it is wrong and only one row is inserted into the table

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim insertsq As String
Dim a As Integer
For a = 0 To 14

[code]....

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Set Color Dialog Only Allow Few Colors?

Mar 2, 2011

im using color dialog for my project, how to set the color dialog only available to choose a major color like red yellow green blue?

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Storing Colors In Arrays?

Jan 9, 2011

i am using vb 2010 i was working with images.....i extract a pixel from the image using getpixel()...but wen i assign it to an array of colors i am getting a run-time error.

"Object reference not set to an instance of an object."

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Translate Legacy (OLE) Colors To (A)RGB With NET?

Apr 28, 2010

I have a list of color values encoded as signed integers (OLE I think) in a legacy INI file that I need to translate into (A)RGB values with .NET. [code]...

gives an alpha-blended version of a color that is not at all what I expect. I think that a value like -2147483633 is supposed to represent a system-defined, or named color like ButtonFace. Is there a .NET method for translating these legacy colors properly? Note that pInvoke to OlePro32.dll is not an option.

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