I am overlaying a staff members ID number over their photo using drawstring.
As the image can vary from dark to light no one text colour can assure that the text will be readable.
Is there an easy way to invert the text colour pixel by pixel based on the colour of the image pixel the text will be drawn onto.
Ok so i have a form of witch the user is able to change the background image of. The form has labels on it. How can i make the fore colour change to be if possible the opposite colour to the image where the label is in order to make it readable?
View 3 RepliesIs there any way to change the colour (background colour or text colour) of just a certain item or item(s)?
View 2 Replieschange the colour of text in a textbox through a button in a simple text editor that i am working on?
View 2 RepliesI am trying to develop a application that will invert my mouse but that will run in the background of my computer.
View 2 Repliesi am trying to code a program in vb.net that will calculate the predominant or average colour in an image file and then change the fillcolor of a rectangle to that predominant colour. I want to do that by getting the RGB value of each pixel, adding them up and then dividing them by the total number of pixels in the picture. This is the code that I wrote to do that.
[Code]...
I am a beginner programmer so this is basically the second time I fired up VS (not much experience). I searched the internet for the last hour but found nothing that might help me. I made sure every value is positive and changed all numerical variables from integer to decimal and I still get the error.I have absolutely no idea why this doesnt work but if I remove the "for" loop then the line written in bold works just fine.BTW this is my first post so scuze any mystakes I probably made.
I am making an application which is capable of displaying a picture, and making adjustments to it. Unfortunately i'm stuck at this phase:The colour of each pixel in the image should be inspected and stored in one or more arrays.
My code so far
Public Class Form1
Dim OpenFileDalog1 As New OpenFileDialog
[code]....
I am using the following code to place a rectangle around a form / form control, however what I want to do is make my screen grey and only the form / form control area be displayed in colour.
Code:
I have googled for ages trying to find something on this, but with no luck.
To illistrate this better they are using the same functionality in snagit 10, please see below link to a page that has a video link showing this (23 sec into video)[url]
To .NET after getting tired of using VB6 due to the lack of functionality. I'm trying to create a log on method for a system which will involve users selecting a colour from a paint panel and then placing/drawing the colour in 1 or more tiles of a grid, basically a 3x3 grid in which for example they selected the blue colour and drew in the top left tile and the bottom left tile. The logon is selecting the correct colour and placing the colour in the appropriate tile. What i want them to be able to do is place even a single pixel of colour so it has a high accuracy. So far i have a timer which loops from the width of the grid to the height of the grid.
Private Sub Timer1_Tick(sender As System.Object, e As System.EventArgs) Handles Timer1.Tick
Dim BMP As New Drawing.Bitmap(1, 1)
Dim GFX As System.Drawing.Graphics = System.Drawing.Graphics.FromImage(BMP)
GFX.CopyFromScreen(New Drawing.Point(MousePosition.X, MousePosition.Y), _
[CODE]...
To start with i have just hard coded the colour i want it to detect. At present it produces an error. Parameter must be positive and < Width the error is on System.Drawing.Point(i,j). If i place the mouse over the colour then run the program it will say it has been found, but otherwise it wont find the colour. I believe i am not updating the location of the pixel or something to that effect.
I've got a combobox which loads the system colour list, the selected colour is stored in the registry (i've tried storing the index number value aswell as the colour name - how can i get the combobox to display the stored colour as the default colour when the form loads? It always defaults to the first item in the colour list I've tried
[Code]....
So I have got a program with a timer on, a few labels displaying coordinates, and two buttons. Here is my
[code]...
It displays the color of the pixel at the coordinate typed into the text boxes.I have a video of a tennis ball which is bouncing on the spot, and the background in brown, so when the tennis ball comes into view there is a significant color change and i want it to start and stop a timer each time the colour changes significantly.So my question is, how do i get it to check whether the colour chas changed significantly?
Ok, i've been making my own syntax highlighter for my project, and i need to know how to make the colour of the text between these two text values green
[Code]...
My VB2010 programme changes the background colour of a button (butExtra.BackColor = Color.Red). But how do I restore the colour to the default "Control" colour?
View 2 Repliesi am looking to change the windows colour and colour intensity. These settings are accessable through Control PanelAppearance and PersonalizationPersonalizationWindow Color and Appearance But is there a way that i can remotely change these two settings through functions in my windows form application? Also is there any way of removing the slight blur on the window bars/taskbar when using an aero theme?
View 1 RepliesI am currently working on a piece of code that allows the user to change the colour of some text in a text box. I have done the size and fonts fine but colour i am struggling on. I am using radio boxes to select the option. The code I used so far that works is this but how do I add the colour into it?
Private Sub radioArial_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles radioArial.CheckedChanged
If radioArial.Checked = True Then[code]....
I'd like to replace all the white pixels in a bitmap image with pixels of the colour "Color.FromKnownColor(KnownColor.MenuHighlight)". Is there some method in the Image, Bitmap or Graphics classes I can use, or will I simply have to inspect each pixel in the image with GetPixel, check whether it is a white pixel, and then set it with SetPixel?Here is the code I am using now:
Private Shared Sub highlight(ByVal b As Bitmap)
Dim highlightColour As Color = Color.FromKnownColor(KnownColor.MenuHighlight)
Dim whiteARGB As Long = Color.White.ToArgb
[code]......
I am trying to make syntax highlighting text-box. I have got it done pretty much, but I am having a problem. Whenever I type a word like below:
<html>
It appears fine,But if I type it in like below:
<img src="
Because there is no space inbetween the = and the " it doesn't show up coloured.Here is the code I use:
Public Class SyntaxRTB
Inherits System.Windows.Forms.RichTextBox
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" [code].......
Well, i created a form and added a textbox and a button to it, when i press that button this text "VB Forums" appears in the textbox. The question is, how can i make that those initial letters (VB) appear in another colour e.g Red but the remained Text (Forums) stay as it is.
View 6 RepliesThis is the code I have, but it doesn't work, does anyone know how to change the colour like I'm trying to do.
'If the text is changed
Private Sub htmledit_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles htmledit.TextChanged
[code].....
RichTextBox1.SelectionStart = RichTextBox1.Find("Not Found")
RichTextBox1.SelectionColor = Color.Red
that is my code.. my problem is in my richtextbox1, there are many line that contain "Not Found". So how can i change colour for all of that text to red colour? my code only work only with a single line that contain "Not Found".
i am creating an rtf editor and i am trying to Change the colour of selected text. at the moment my code changes the colour of the whole text, but i want to be able to highlight my text and have 2 seperate colours, below is my code. Have tried to add .selectedText in but it says it 'SelectedText' is not a member of 'System.Windows.Forms.ColorDialog'.
ColorDialog1.Color = Editor.ForeColor
If ColorDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
Editor.ForeColor = ColorDialog1.Color
End If
I am making a Hangman Game.
1. How do I change the colour of the text I am entering. i.e. if the letter entered by the user IS in the word, then I want to make that text appear green in the other textbox, "guessed letters"
2. I also want to know how to mask and unmask certain characters at will. i.e. when the user guesses a letter, the program checks to see if the character is in the predefined word. If it is, then I want it to unmask that letter on the label, "Word Label". I also want the program to start with the word already masked.
3. How do I take a random word from a text file for the user to guess?. I have a text file with all the words of the dictionary on a new line.
Here's the mediafire link to my project: [URL]. (The dictionary text file is included)
I am trying to make the application similar to Notepad++. Notepad++ colours text depending on what type they are, eg. HTML, PHP, CSS, Java, ect.
I just wondered if somebody might be able to help with this? I have no clue where to start, but I have an idea of how it would happen.
- Text is entered into the RTB (RichTextBox)
- The text is read by the program as it's entered
- The text is coloured depending on the type
I am trying to draw some multi colour text onto a form using the paint event and the GDI+ object (note it has to be done using the GDI as i will be needing to scale and do bmp pixel manipulation on the resulting graphic . I have so far managed to create a class and collection winch allow the user to move the text around and change the displayed string, font and colour.
My question is how can i change my class so that it draws multi colour text? and if possible allow the user (uinsg the mouse to graphically select parts of the text.
Below is a work link to the project so far:-
[URL]
I have been experimenting with my windows form application(vb 2008/10) and made sure that the top part(glass part) extended to become a bit larger.Now 1 problem occurs. Everything, like text, which is black, will become transparent so unreadable. With labels and pictures, I solved the problem, I just write a string(e.graphics.drawstring) and for labels / titles I use a long method(not important). But now the problem comes
View 6 RepliesI would like to know what code snippet I would use to keep the RTB text colour the same as the chosen foreground colour,Currently any text colour that I ,say for instance C&P into the box is black (apart from when I manually type in the RTB).
View 2 RepliesIs there any way to invert the screen. For example, making upside down or having mirror effect?
View 1 RepliesI have a button (btnAdd) that adds the content of a textbox (txtName) to a textblock (lblName). I want to add a date to the textblock when btnAdd is pressed but I want it to be a different font size and colour. So far my code looks like
lblName.Text = txtName.Text " " + DateTime.Now
I only want DateTime.Now to be a different size and colour. Is this possible? Instead of a label I need to display it in a listBox. My new code:
listBox1.Items.Add(txtName.Text " " + DateTime.Now)
I am trying to conditionally change the colour of some text in a textbox, for example: If n=> 10 then txtbox1.forecolor = red
This doesn't appear to work, does the textbox need to be a 'rich textbox'
I have line like this in text file
-----------------------------------------------------------------------------
( Pin ) [ Probe ] Length = in.
| From | To | From | To
Length|Ga|Color |(b r c )|(b r c )| X Y | X Y
------|--|------|---------------|---------------|-------|-------|-------|-------
[code]....
i want to sort the above column inorder that, all the line contain Twst will come first then blue, red and finaly black. This is my code so far
Sub coloursort()
Dim lines() As String = File.ReadAllLines(TextBox1.Text)
For Y As Integer = 0 To lines.GetUpperBound(0)
[code]....
But the above code replace the line with 1,2,3,4 or 5. According to select case statement. How to modify the above code so that it sort the lines?