Know how to use the track bar to control the brightness or darkness of an image in a picture box,use track bar to sharpen an image and to use trackbar to emboss an image.
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I'm using a series of 3 images within a picture box to create the illusion of a button being depressed when clicked. This is the code I use: Code
And this is the problem I have when doing these events: I am using Image lists, .png format, and I have made sure that they are all the same brightness in photoshop i.e. it is Vb that changes the brightness.
[code]when I multiply trkZoom.Value by anything I am getting unwanted results (x * trkZoom.Value). x = 20 varies sizes...x = 100 cannot downsize the image. What am I doing wrong to get this to increase or decrease x5?
View 2 RepliesI have a code that sharpens an image using the 'unsharp method' when a button is clicked and filters applied.
Apply unsharp masking.
Private Sub btnUnsharp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUnsharp.Click
[code]....
I am developing a visual basic 2008 express edtion program of an organisation that should get images from the system and display on image/picture box. further the program should save the displayed image in access database so that it can be retrieved together when you want to search the information about that particular employee.
View 7 Repliesknow the millisecond interval, used by the framework trackbar, between calling the ValueChanged event when moving the grip with a mouse?I've implemented my own trackbar and I'd like the behaviour to be consistent with what the user expects.I've had a look in reflector but it's one of those controls where most of the implementation is not viewable.
ETA: Actually, thinking about it, it's not as simple as that. For small changes, the TrackBar is raising the event for every change. However, if you make a large fast change with the grip, it will not raise the event for every step. Just wondering exactly how the framework does this?
this line of the code makes the form see-through "User32Wrappers.SetLayeredWindowAttributes(Me.Handle, 0, _
255 * 0.4, User32Wrappers.LWA.Alpha)"
if i adjust 0.4 to 0.6 it will become less see-through.
i would like to know if i can control this variable through a trackbar and how!
Public Class Form1
Private _InitialStyle As Integer
Private Sub Form_Load(ByVal sender As System.Object, _
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Is it possible to add a trackbar control to a StatusBar (not StatusStrip) control?Goldfish64
View 6 RepliesI'm back, and now with a great problem...I need to put a TrackBar in my application, in a Panel with an ImageBackGround... but the TrackBar doesn't work with Transparent Background...Now I want to build my own TrackBar Control, but support the Transparent Background...I read in some page that I need to use CustomDraw... to customize te aparience of my TrackBar... but I can't undertand how..
View 3 Repliescreate a form with a TrackBar control so that when you Scroll the TrackBar it generates a frequency based on the value of the TrackBar. Beep() isn't really what I'm after. I was wanting it to smoothly transition through the frequencies. Basically, I want to create something that sounds something like a Theremin.
I've been looking online, and I can't seem to find anything. I don't even know how this would be accomplished. Is there a simple command to say "play this frequency until I tell you otherwise", or do I need to generate a .wav on the fly and have the system play that?
I'm looking to draw a trackbar normal, only with a transparent background. I have created a new class that supports transparent backgrounds set to true. Without using userpaint, the trackbar does nothing or takes the color of it's parent. When using userpaint I have to draw the control on mine own. Not quite sure where to start first though...
I've read about drawing a line (not so hard), drawing a floating object (to act as marker), and handling events on when the floating object moves left/right... Drawing 3 separate objects inside an inherited trackbar control seems like a clunky way of calling methods that should exist somewhere? Is there an easier way to draw the control normal without a background? If not, some in starting to implement all 3 new objects working together would be good (I could draw them separately but that's about it).
I created a barcode and displayed it in a picture box and i want to print it.
View 4 Repliesloop all pictures found in this path C:Images to a pictureboxin the code below it show's all the pictures to the form..
Private getpath As String = "C:Images"
Private imageFiles As String() = IO.Directory.GetFiles(getpath)
Private imageIndex As Integer = 0
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I've looked in a few places but haven't had much luck in finding what I'm after.So I have a picturebox on my windows form and it has an image set to it, I also have a bunch of reference files that reference to a bunch of images.
Me.PictureBox1.Image = My.Resources.imgs.image1
That piece of code works.
Now, I tried to databind the picture box to a database so the images would load on the change of a combo box but that got confusing really fast so what I did was created a database and it holds all the image references such as "My.Resources.imgs.image1" but its stored as type varchar(50).
Connecting to the database and retreiving the strings is no problem, that works all fine.The problem is converting the string to the image reference, it doesn't work. I've tried type casting, I tried using imagelocation rather than image but I want to reference to the resources that is attached to the project.
[Code]...
I need the picture boxes to switch threw the images and here is my code. Im using the imagelist to hold my 3 images so far (0-2)
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load images into a picture box. Firstly, is it possible to use a set of randomly generated numbers to display a random picture from a selection into one picture box?
i.e. Dim RandNumber As Integer
Dim RandClass As New Random
RandNumber = RandClass.next(1, 10)
[code].....
Ok so I'm making a slot program where I have 3 picture boxes displaying a possible 9 images:
Bar
Seven
Bell
Cherry
[Code].....
The error I get is saying that = is not the correct operator even though it worked for my case statement
I have an "array" of picture boxes. I load a default image into them which I need to swap in a loop (very small gif). A bit like this:
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mage from the open file dialog in a picturebox the image displays correctly..
Private
Sub
ListBox1_SelectedIndexChanged(ByVal
[code].....
I am working on a tic tac toe game and it needs to have a file menu with a new game option. i was wondering if there is a line of code that will accomplish this for me instead of having to manually enter the code to remove all the images from the picture boxes and reset all my variables. reset the form?
View 3 RepliesI am trying to create an application where it stores images as well as data.
View 3 RepliesI am not a total newbie to Visual Basic. However, the last time I used it was back in the days of DOS and Windows 3.11. Now I am using VS10 on a Windows Vista machine and it so different, I feel like a total newbie.
I am working on a project that I wish to load RTF files into a RichTextBox and an accompanying image into a PictureBox at runtime. I want this to happen when the user clicks a Menu Choice.[code]....
The source code for this task is here: copied the VB code to Break TIFF file with multiple pages to be displayed in a Picture Box. I did modify one line of code for testin¦
'Save the master bitmap
MasterBitmap.Save("C:UsersmyselfDesktopxx.tif", info, ep)
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I'm making a program and in which the user can select a background image from their computer, but I have not found a way to save the picture to my.settings or my.resources
View 3 RepliesMy plan is to use a database to hold her recipes and create a user interface with search controls and different stuff, this way she will be able to add new recipe's and the program will have a much more modern feel to it.
My question is, I have added a picture box control to the new recipe form and when I click on the picture box I want the program to load "my pictures" and let me select a picture to load into the picture box, like you can on ebay when you are selling stuff, you can select your picture and it loads into the picture box.
As far as starting this off, I can add a double click event on the picture box control, this will trigger whatever code I need to use to load the open file dialog.
Can I use simaler code that I used for a text editor program I wrote for opening saved documents?
I have been able to associate a listview control with an imageview control to display images. There are a couple of things, I would like to do.
1> How do I display the image in the second column? 2> How do I increase the size of the image getting displayed? My images are all 48 x 48 (pixels), but they keep shrinking.
VB.NET
Option Explicit On
Imports System.IO
[code].....
error: Conversion from string "The world is veiled in darkness." to type 'Double' is not valid.
If Label1.Text = 8 Then
Label2.Visible = true
End If
im trying to make label1 .visible = true when label5.text = 8 i set the properties to label1.text to false so when the counter hits 8 it turns label1.visible = true
Im doing a mini project and i need to display an image in picture box control when a cell clicked in datagrid view control .the image is linked through the database ms access and im using vb.net frame work.
View 2 RepliesI've been investigating and experimenting with the code snippet on this page: [URL] - with some rather undesirable and wacky results being produced.
Why do I need this? I am attempting to adapt this snippet to suit my needs for a day/night system in the game I am working on. I am sure that the correct results can be produced with this snippet, but at the very least I need some guidance as to how I can achieve what I want.
I'm making a simple image editor in VB.NET, and one of the functions is brightness/ exposure.this is how I'm doing it:
For i = 0 To img.Width - 1
For j = 0 To img.Height - 1
Dim s As Color = img.GetPixel(i, j)
[code]....
where 2 is brightness which makes it twice as bright.Only problem is this doesnt seem to work well because it does it, but takes about 30 seconds!
