Fast Image Selection / Coloring
Jan 13, 2011
I have a bundle of tiny pictureboxes on a form. The number is specified by the user, but it could be up to 100, or so. The user can select any set of these pictureboxes by a variety of means. I want to change the image to show the selection state of the pictureboxes, and I'm looking for the best way to do that. The pictureboxes each shows a bitmap. The brute force method would be to have a selected image and an unselected image and just swap them, but it seems like there ought to be a way to do something significant and reversible to the image, such as inverting the colors, that might be smaller that having a second copy of each image.
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Aug 13, 2011
I used this:
Dim i1 As Bitmap = owall.Clone
Dim i2 As New Bitmap(ChangingWP)
Dim g As Graphics = Graphics.FromImage(i1)
Dim cm As New Imaging.ColorMatrix(New Single()()
[Code]...
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Apr 5, 2011
I'm creating an application that finds all of the text in a picture regardless of text size or font (whithin reason, Just the basic monospaced and default windows fonts). I tried making my own but it was slow and very unreliable. I need it to work fast (as close to instant (give or take 1 or 2 seconds)). I have to run it on images 1000+x1000+ (Nothing more than 1500). I have to take the values of the text and the position of it in the image.
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Feb 21, 2009
I an working on image converting program. I need to convert a file that the user selects in an openfiledialog to the following file types in a folder that the user selects:
.ICO
.PNG
.JPEG
.BMP
.GIF
The user will select which type they want to convert the image to.
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Dec 14, 2011
Is there any easy way to check if a selection made by a user from the browser is an image type and not any other file type. I could check for extension types i.e. bmp, jpg etc but what I would like to know is whether there is a generic term.
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Aug 2, 2011
I want to do the following
1) Copy a picture in paint (done Manually)
2) Select and copy a portion of it (Done manually)
3) Paste the selection to my image control via clipboard
in other words if in paint I copy a selected portion of an image how Can I get the selection in my vb application via the clipboard?
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Dec 4, 2011
I have a picturebox with an image in it. I want to 'select' a section of this image (like standard selection tools in other image editors) and place it in another picturebox... The piece I want to select is a square and I have the coordinates.
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Oct 1, 2009
I have been googled for couple of hours but couldn't find a solution
I m doing a touch screen interface, to browser a page I used a webbrowser control, and in order to get ride of the ugly scrollbar, i m trying to use mousedown and mousemove event on the webbrowser to move the page around, it worked but when i m doing it, it select and highlight the content on the web too, how can i stop that?
do I need to create a extended webbrowser control by Inherits the orginal one?
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Nov 23, 2010
I want to be able to change an image depending on what is selected in the drop down box. I have this JS code to change the image. Simplified of course.
<script type="text/javascript">
function changeImage() {
var oDDL = document.all("ddlNAME");
var NAME= oDDL.options[oDDL.selectedIndex].text;
switch(NAME) {
[Code] .....
When I call this function I do it in my DDL implementation.
<asp:DropDownList ID="ddlNAME" runat="server" OnTextChanged="changeImage()" >
But for some reason the changeImage() is not firing. It is giving me an error saying
'changeImage' is not a member of 'ASP.default_aspx'
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Aug 12, 2010
whats the quickest and least application hogging way to retrieve image from web and show in picturebox on listview selection event?
Heres the code i have already which produces app lag for abut 3-5 seconds per image loaded, i think as it stretches the image to fit into picturebox (which is needed)
vb Private Sub bwGetScreen_RunWorkerCompleted(ByVal sender As System.Object, ByVal e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles bwGetScreen.RunWorkerCompleted
For l As Integer = 0 To ListView2.Items.Count - 1 'start download selected If ListView2.Items(l).Selected = True Then Dim fileid As String = ListView2.Items(l).SubItems(5).Text.ToLower Dim recordid As String = ListView2.Items(l).SubItems(6).Text.ToLower + 1 urlpic = "http://se-board.com/index.php?app=downloads&module=display§ion=screenshot&full=1&id=" & fileid.ToString() & "&record=" & recordid.ToString()
[Code]...
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Sep 4, 2009
If i wanted to crop an image in VB.net, how would I go about doing it? I am trying to let the user drag out the box they want (system.drawing.rectangle), and it will automatically remove the edges surrounding the box.
My first problem is primarily the fact that I cannot make the system.drawing.rectangle visible. It is not displaying at all, I am setting its location and height programmatically, but nothing is showing up. I know there is probably something fairly obvious I am missing...but I cannot seem to find it.
My larger issue, however, lies with the cropping itself. I cannot find any crop methods, at all. Is there a hidden one I am missing? Or must I code it myself? How would I go about doing this? It ought to be able to output to a bitmap image object.
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Aug 29, 2011
I have this to append a text to a richtextbox
RichTextBox1.AppendText(String.Format("{0,-11}{1,-18}{2,-10}{3}", "[" & Now.ToLongTimeString & "]", "SergeMorel", "∙ Some Text Here", Environment.NewLine))
It's for an irc client. It appends the text users send or receive.How do I color for example, the time in a color & the user in a different color, etc...
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Feb 28, 2011
I�ve a label which displays a time counter as follows:
Me.label.text = �Hrs: � & myH & � Mins: � & myM & � Secs: � & myS
The line:
Me.label.ForeColor = Color.Red
Changes the color of the entire text to red.
I�d like the letters H, M and S to be of different colors. I know I could set up three different labels and color them but I was wondering if exists a trick which allows me to change colors with the same label.
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Jul 24, 2009
I have some textboxes on a report in VB 2005. There are three "Status Types": A, B and C. I want an expression like this to work on a number of textboxes:
[Code]...
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Jun 23, 2009
i'm working on a project app to help me color code my html snippets. i'm not being able to figure out how to change the color of this line when selecting text :
<font color=blue> synthax helper </font>
to look like this:
<font color=blue> synthax helper </font>
as far as i can get it to change the selection color is this:
<font color=blue> synthax helper </font>
here's what i have in code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RichTextBox1.SelectionColor = Color.Blue
RichTextBox1.SelectedText = "<font color=blue>" & RichTextBox1.SelectedText & "</font>"
End Sub
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Aug 19, 2011
I have a program that appends text to a richtextbox.I do it like this :RichTextBox1.AppendText("[" & Now.ToLongTimeString & "] <" & Username & "> : Hello World !" & vbNewLine)
I know the username.Now, I searched google to color the username (the text between '<' & '>').It works, for the first line at least.As soon as I add another line, only the first line stays colored.How would I do that so it colors every line?
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Apr 25, 2011
Is there an easier way to color certain tags like: <html>, <h1>, <body>, etc?I would like to make an html editor and i would like to know if anyone out there has a VB10 Example of a text highlighter When the text changes.
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May 30, 2011
I am making a personal application in VB.NET that uses a CheckedListBox to store items. I have three buttons on my form, with which I would like to change the selected item's color with (to green, orange, and red.)
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Jan 5, 2012
I have a program that colors certain words, but when I do a Ctrl+Z, the textbox undoes the coloring. How do I make it stop undoing the coloring, and just the text that was edited?
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Jul 17, 2009
i have designed an app that colors the screen, and makes it look like you are wearing different color glasses.
i would also like to add the functionality of instead of coloring the whole screen, ONLY coloring the background of a document exactly like this program does:
[URL]
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Sep 25, 2010
This is my second post and today I have the following problem:I want to make a Steam Gamertag Maker ..
1) I have a RichTextBox.
2) I have 8 buttons each representing a color (red, green, yellow, blue, teal, pink, white and black ..)
3.1) I enter some text into the richtext box.
3.2) I select part of the text.
3.3) When I press a button, e.g Blue and the selected text changes to that color.
3.5) I have a copy button, that copies the content of the richtextbox .. and that is where the problem starts .. (The copied text has no color and so on .
4) If I press, for example the Blue Button, I want that the following text "^4", is written just in front of the selected text and that the selected text is colored blue at the same time. The other text should not be affected by those adjustments ..
5) If the "^4" is inserted, it should be hidden
6) If everything is colored, I press the copy button and it should copy the whole text, including for example the "^4" ..
7) I want the "^4" to be hidden, because it looks better, but if I copy the content of the RichText box it should be included ..
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Apr 18, 2011
Rather complicated question here. I am improving the text coloring in my custom RTB ontrol, and it is pretty simple:Quote:1. Disable drawing (SetDrawing(False))2. Get current selection
3. Select lines to colorize4. Process selection RTa Font object.
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Feb 27, 2009
I am trying have a data grid selection populate a form. I am new to this.Basically I have a connection persistance object and I would like to call that and call a stored procedure with the value of the selection. The datagrid is bound to an object.
[Code]...
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Dec 25, 2010
I have a listbox (20 Items) with multiselection and label that disply the selection and one button. So I wrote (it works fine)
[code]...
Now when I click on button the label show lets say Item2,Item5,Item10,How do I take off the last ","
somthing like that Item2,Item5,Item10
I used to do: Dim s As String = Trim(Label1.Text)Label1.Text = s.Substring(0, s.Length - 1) but it give me an error converting intiger to string
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Apr 1, 2011
Dim listbox1 As New ListBox
listbox1.Items.Add("<br/>")
Dim int As Integer = 0
Dim line As String = RichTextBox1.GetLineFromCharIndex(RichTextBox1.SelectionStart)
For Each item In listbox1.Items
[Code] .....
My coding selects an item from the list box and tries to color the words in the currently selected line, however, it often colors characters that come after the instance. Why is this happening?
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Feb 14, 2011
I was wondering if it was possible to colorize syntax of, say HTML, inside of a RichTextBox by comparing each word in the current line of text against the collection of words in System.Web.RegularExpressions.AspCodeRegex? I'd imagine that from this question it would be possible?
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Aug 30, 2009
How would I use his code and get it to work with a RichTextBox when a button is clicked?
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Jun 16, 2009
osheet.Range("A1").Select
'The line below is the one I would like to know how should I write it in VB.NET:
osheet.Range(Selection, Selection.end(xlDown)).Select
[code]......
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Oct 8, 2009
I have an issue with Visual Studio's support for coloring User Types in VB.NET, I'm an C# developer that have been forced to code in Vb.NET by political rules in my organization, and I really misses the support for coloring user types in Vb.NET, I had hoped that this would be solved in Visual Studio 2010 and well in the beta they have added Vb.NET User Type coloring, but the coloring is the same for all user types I cant't have one color for interfaces and one for classes and so on.
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Aug 26, 2011
I am using this code to select a folder.how to do the same kind of thing selecting a file instead of an folder.
Private Sub PathButtonB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PathButtonB.Click
Using FolderBrowserDialog As New FolderBrowserDialog
With FolderBrowserDialog
.Description = "Kies die Folder waar hierdie ResepteBoek die Kunswerke vir sy Resepte moet gaan soek."
.ShowNewFolderButton = False
[code]....
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