I'm trying to process the RGB values of an image using ColorMatrix.I created a trackbar for the R value for example,with minimum -100,maximum 100,and value=0.The first time I use the Rtrackbar it works properly,but when the trackbar value is 0 again the image is not the same as before any more.[code]
View 7 Replieshow can i zoom an image inside a picturebox? and i also want to know how can i make a picture inside the picturebox draggable while at the same time, it can be zoomed in and out.
my goal is to crop an image inside the picturebox and i can zoom and drag the image inside if necessary
how can i change opacity of a background image on a form with a trackbar.
View 1 RepliesAlright, say I've made an animation in photoshop and exported it as a JPEG. I want to know if it's possible to change which frame of the animation the image will show. An example is if I made an image with 10 layers, and I want the 5th layer to show in a picturebox, how can I achieve this?
View 6 RepliesI want to add values to trackbar as shown below in figure.If someone scroll the track bar resp value should be shown in that text box.
View 5 RepliesI couldn't find a way to make the trackbar transparent, so I found this download of user-created taskbars, it gave me a .dll I'm not quite sure what to do with it though. This is where I got it [URL].
View 2 RepliesI am using the WindowsMediaPlayer. I disabled the Controls , and created my own. I want to use a Trackbar to slide throug the media being played.This works, for moving
Private Sub TrackBar2_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TrackBar2.Scroll
LenOfVideo = AxWindowsMediaPlayer1.currentMedia.duration
TrackBar2.Maximum = LenOfVideo
[code]....
But i need the trackbar to track of the position of the video while playing.It stands still now. I need it to be updated.
I am using a picturebox to play movies/songs in my application. I want to able to drag/ slide the movie/song as we can do it in windows media player.
View 1 RepliesI use some code to successfully resize and save images - but I want to save the image to 800x800 px size on a canvas of 900x900px so it has a white border type thing around it.
View 8 Repliesi've got buttons i'd like to highlight on mouseover. how does one change the image associated with a button?
i'd like to use the mouse enter and mouse leave events in order to change appearance of the button when the mouse is over it.
my environment: windows xp pro (sp3), visual studio 2008 pro, (sp1, sdk 1.1)
I am attempting to change an image at run time but continue to get an error stating, "File not found, Exception was unhandled. I am assuming the error is with the file path but I have not been able to find a working variation.
Below is the code I believe would be correct but I continue to get the error. If working properly, the program would change the text and picture based on user input.
Private Sub btnInfo_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnInfo.Click
Dim strFriendName As String
[Code]......
[Code]...
When I click the button nothing happens. What am I doing wrong here ?
How can I get my vb program to switch the background image to several pictures automatically using a timer?
View 1 Repliesi have a program i've made a while, and one of the users wants to be able to load his own images to the background instead of the plain grey that is there now. i've searched and searched, and basically can get this working
BackgroundImage = Image.FromFile("C:UsersMeFileName.png")
i just slapped that onto a button just to get it to work as i was experimenting. but that only works for a file of that name, on my computer, in that folder. what i'm looking to do is get it so a user can browse his own directories for images and upload them as the background on the form. and be able to save the settings as well. but so far i have only seen different ways to load preset images that you can load. if it's even possible? i'd assume that you'd use the openfiledialog command, but i'm not that well versed in vb as of yet.
Although my code compiles, it does not result in a change of the background picture of button1 here is my current code. Is it possible that my condition contains some error? or is the command itself wrong? [code]
View 1 RepliesI am trying to make a 'puppet' change into a ball when I press e.g. the right arrow key. I used getasynckeystate(keys.right) to check for the key in a timer. The moving is working well but I don't have an idea how I can make it change in a picture of the 'puppet' changing which then changes into a ball. Does someone know how to do this?
View 3 Repliesis there a way to change the background image of a form by just shaking the form? i'm using vb 2010.
View 4 Repliesi am trying to create an application like a media player....Say i got an option which changes the background image of the form,like skin or something!now i want to change the mouse events when that background image is active on the form... lemme give u an example of a code...
Private Sub FireToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FireToolStripMenuItem.Click
Me.BackgroundImage = My.Resources.Fire
TrackBar1.BackColor = Color.Yellow
End Sub
i have been working with a friend on a tower defence game in visual basic 2010, we have made 32X32 picture boxes to act as tiles and we want it so if you press a button then a picture box it will build a tower in that picture box.we need this to be done within a single sub though cause there are about 500 picture boxes and its would be very impractical to make a mouse click sub for each of them. this is the code for the sub i have now:
Private Sub TileClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox99.MouseClick, PictureBox98.MouseClick, PictureBox97.MouseClick, PictureBox96.MouseClick, PictureBox95.MouseClick, PictureBox94.MouseClick, PictureBox93.MouseClick, PictureBox92.MouseClick, PictureBox91.MouseClick, PictureBox90.MouseClick, PictureBox9.MouseClick,
[code].....
how do i change the picture inside a picture box.I wanna make 5 dice that change when you press roll.. the number generator is easy i just wanna use graphics rather than a label to display the numbers.
View 1 Repliesanyone know how to do this, but wit a browse for folder aspect..like i open up my browse for folder window, select the folder i want and it displays the .png file in picturebox..i'm trying to figure it out..here is what i have so far..i have it setup where i'm opening up a folder and loading certain files in my checkedboxlist..but i also want a .png file that is in the subfolders(the only .png file in the entire directory) to be displayed in the picturebox..but the folder is going to be changed depending on which folder is selected..so it can't be a set directory or path..basically has to change like the checkedboxlist.
[Code]...
I started computing at college about a month ago and have been learning to program in Visual Basic 2008 Express. I decided one weekend that I would try and make a pretty simple game that I may be able to use for my coursework at some point (I know Visual Basic isn't everyone's first choice for games programming but I thought I could try), I have learn a great deal from doing this but have encountered a rather odd bug in the program.
[Code]...
I got a Combobox with some items (item1-item7) to select and 54ish Buttons(sButton1-sButton54). Also an array(53) called Buttons. The array is filled with the items to select, like: Buttons(0) = "item 1, item 2" Everytime another item in the Combobox is selected, I'd like only some of the Buttons to change their Image. Therefore I got the array. If Item 1 is selected and Buttons(0) contains the item1 I'd like to change the Button1's image.edit: It works with changing the image of every Button:
sButton1.Image = My.Resources.image1
But I'd prefer to change all in one go (Loop) instead.
sButton(0) = "item1, item2, item3"
sButton(1) = "item2, item3"
sButton(2) = "item1, item3"
[code]....
I have a DataGridViewImageColumn that should display an image for only certain rows. After I bind a generic list of classes to my datagrid, I loop through each row and update the image cell with an image that is an embedded resource for the rows that require the image. This works great if the form has been fully loaded. However, when I attempt this on form load the image doesn't show up? I also can't perform simpler things such as changing the row background color on form load. Should I be performing this logic in a different event after form load?
For i As Integer = 0 To dgvRoles.Rows.Count - 1
Dim imageStream As System.IO.Stream = Nothing
imageStream = Me.GetType().Assembly.GetManifestResourceStream("MyApplication.Timer.png")
[Code]....
I want to programatically delete some pixels that are unused in order to reduce the image size.Can anyone tell me how to reduce the size of an image file without changing the pixels values..
View 1 RepliesWhat I have done is named a bunch of picture boxes "Q," "W," "E," etc. (the whole alphabet) and named picture that correspond to these picture boxes ("Q.png," "W.png," and so on) and added them to my resources.
For example, the following code would give the picture box named "Q" it's corresponding image "Q.png":
vb
Q.BackgroundImage = My.Resources.Q
Of course, it's kind of a pain in the backside to copy and paste this code and change all the Q's to W's and so on, so I was hoping to create a function to do the job for me:
vb
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
'So that I can run the letter as a string through the function,
[Code].....
Hopefully I've provided enough detail so that it is obvious what I'm trying to do.
Obviously, the code I tried above (the second block) doesn't work - it gives a syntax error. I need to change/write to make this function functional.
I'd like to verify if an image control has an image loaded . If it does , I want to unload that image (and load no image) , but if the image control has no image loaded , I want to load an image . Is it possible ?
If ImageMY.Image.Equals(Nothing) Then
ImageMY.Image = System.Drawing.Image.FromFile("C:ImageBlaBlaBla.jpg")
Else
[code].....
Any thoughts on what might cause a thread error like this?Error:InvalidOperationException was unhandledCross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.
Relavent Code:
Private Sub SerialPort_DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
[code].....
I'm not sure if I already saw a trackbar inside a menu strip, but there is a way to add it? Or even a numeric dropdown?
View 2 RepliesMy app deals with football, and the line of scrimmage. There is an additional line, called the line to gain, used for showing where a first down is earned. I'd like to have a trackbar with two arrow on it... one for the Line of Scrimmage, and the other for the Line to Gain.
View 6 Replies