Get Pixel In Picturebox?
Sep 5, 2010How can i get a x,y location of colored pixel in my picturebox ? so say the pixel i wanted to get was the rgb 0,0,0 for black, How would i find the black pixel and return it's x,y ?
View 18 RepliesHow can i get a x,y location of colored pixel in my picturebox ? so say the pixel i wanted to get was the rgb 0,0,0 for black, How would i find the black pixel and return it's x,y ?
View 18 Repliesi am working on a project in vb.net 2003 and i want to get the color of a pixel when i click on the image loaded in the picturebox. i ve tried anything but nothing seems to work...
View 3 Repliesi've already got a coordinate (x,y) like this that picture at above was create with
datagridview.item(x,y).style.backcolor = color.black
how can i copying to my picture box? and of course become an image..
I'm loading a picture into a picturebox. How can I set the pixel width to a fixed number, ex 300?
The whole picture must fit the picturebox, even if the original resolution is higher.
Dim bmp As New Bitmap("c:Test.bmp")
bmp.SetResolution(300, 50)
PictureBox2.Image = bmp
i have a chart of images.. and i want to load individual images into picturebox from that chart..chart = big image, eg alphabet chart. (yes i am creating a game for my small nephew.. pictures and alphabet) now, i want to show different pieces of images into picture box. like the A box, b Box etc one option is to cut the chart into pieces, save each piece with different filename and load individual filename into picturebox.but i saw somewhere that we can use pixel location to load images into picturebox..as i recall it required two pixel location, 1 was upper left and other was lower right.. and passing that pixel locations would load the rectangular image between those pixel locations into picturebox?
View 9 Replieshow to get color form a certain pixel from a bitmap image, but i cant find function getPixel in the picturebox object.
View 5 RepliesI am currently creating an app and i want to be able to get the colour of a pixel, but in a picturebox.Example: I click anywhere in the picturebox and it will give me the color of the pixel I clicked.
View 3 RepliesIve been working on creating a side scroller game, and the back color of my pictureboxes needs to go. when transparent, it shows through the program and onto whatever is active in your Windows os(usually Visual studios).
I am trying to rip pixel color off of the background image picturebox( the level), and replace parts of the character picture box that show transparency with the level art. there may be poor logic in my code?
Heres my code:
Dim newImage As Bitmap = New Bitmap(PictureBox1.Image)
Dim backImage As Bitmap = New Bitmap(PictureBox2.Image)
Dim ximg As Bitmap = New Bitmap(PictureBox3.Image)
[code]....
not the best idea, but all i get is one color for all the level pixels placed in the new image, which is odd. any poor logic you see in this code that could allow the newImage.setPixel not to be 1 color? when i breakpoint, it is recieving different colors from the backimage.getpixel, but only putting one shade on for setpixel somehow. im not going for an accurate color read from the background yet, just wondering why im getting 1 pixel color for the whole picturebox background when being changed.
I would like to load a GIF file, and start with the first pixel and check to see if that pixel color is closer to Black, Red, Green or Yellow, then take what ever color it closest matched to and output that color as a number, 0, 1, 2 or 3. So just for a small example a 5x4 GIF would be converted to something like this: 0112223322220111332?
View 13 RepliesHow do i determine the pixel width and pixel height of the largest image i can paint onto the graphics object of a printer while inside a printpage event?
Imports
System.Drawing
Class
[Code]......
Is there a quick way to check the color of a pixel on the screen?
View 2 Repliesduring the development of my project, i've fall in the need to change the position of some forms, pixel by pixel using a timer.Now, i've checked that the movement is very fluid when form is not very heavy, when it contains few elements, but when it has a lot of elements inside, the movement becames nervous and not fluid, the movement becomes jerky.
View 5 RepliesHow can I find out the pixel colour of a certain point on a web browser. For instance,WebBrowser1.getPixelColor(0,0) would get the rgb colour value of pixel 0, 0.It doesn't have to be rgb it might be hsl or whatever.The web browser is showing a local web page that is hosted on a network. If there is an error then the screen goes all grey. What I want to do is, if this does happen, display an alert message like - "An error has occurred
View 3 RepliesI have an empty picture box with the background colour set to the transparancy colour. How can i get the colour of the pixels within the transparant picture box so that i can create a bitmap of the transparant section of the form?
View 2 RepliesI have the code below on a timer( "b" is a bitmap )
If
Not (Clipboard.GetImage
Is
Nothing)
[Code]....
The problem is that it raises the event even if the picture didn't change.
comparing the 2 images without actually comparing them pixel by pixel (too slow to do the job)?
when adding picture to dynamic picturebox from my.resources in .dll a duplicate semi functional picturebox is added too, behind the picturebox i intended to add. has anyone seen this happening before or can provide any insight into this?
View 1 RepliesIn VB6 I used some pattern of programming..I passed the picturebox as parameter to some procedure in some class and inside this procedure paint all needed graphics using this class methods.Now I want upgrade my application to vb.netBut all samples for line drawing show me how to draw inside paint event.[code]
View 2 RepliesI have a PaintEventHandler connected to a picturebox via AddHandler.
In PaintEventHandler I have coded this for writing the drawing to PictureBox1.Image:
Dim PictureBox1 As PictureBox = CType(sender, PictureBox)
PictureBox1.Image = New Bitmap(PictureBox1.Width, PictureBox1.Height)
Dim bmp As Image = PictureBox1.Image
Dim g As Graphics = Graphics.FromImage(bmp)
... drawing something ...
PictureBox1.Image = bmp
Everything works fine but after running through the paint event handler and showing the picture on the screen it calls the painthandler again and again. It does not stop.
Replacing the code above with
Dim g As Graphics = e.Graphics
Makes it running. But then I cant save the Image to a file.
I have a program I'm working on that, for one of the features, allows the user to drag an image from a picturebox, into the main form space, anywhere they want. [code]...
When trying to drag the image from the CurrentTilePicBox, the very moment I move the mouse while dragging the cursor becomes a circle with a cross and won't drag and drop into the new picturebox.
Hey I am making a GDI++ game in vb.net. Now what I want is the monster(picturebox) to go after the player(picturebox). There Are No Vertical Walls. Only The Edge of map barriers. For example to get to the player the AI would have to go to the end of the ledge and either jump off and fall to the lower ledge or take the ladder down. There is no jumping, only falling and going up and down ladders and across the horizontal ledges. So How Can I make this pathfinding system?
View 18 RepliesI have a panel, which contaisn two Pictures.When the panel is mousehover the Pictures appears. When the panel is mouseleave the Pictures disappears.However, when I'm trying to pass the mouse between the Picturebox and Panel, the Picturebox disappears, because the panel doesn't detect that as panel area.
Private Sub Panel_MouseHover(ByVal sender As Object, ByVal e As System.EventArgs) Handles Panel.MouseHover
Me.NextIMG.Visible = True
Me.PrevIMG.Visible = True
End Sub
Private Sub Panel_MouseLeave(ByVal sender As Object, ByVal e As System.EventArgs) Handles Panel.MouseLeave
Me.NextIMG.Visible = False
Me.PrevIMG.Visible = False
[code].....
My app has scrolling images in the background and a picturebox on top. The image in the picturebox has transparent parts. How can It so that the transparent parts show whatever is belo the picture box, not the form background? I have tried taking screenshots and positioning them as background but this just freezes the app.
Dim ScreenSize As Size = New Size(154, 83)
Dim screenGrab As New Bitmap(154, 83)
Dim blank As New Bitmap(100, 300)
[CODE]...
I need to plot some analog values read from the serial port.I plot them in a picturebox starting from left. When I reach the end of the control at the right side I shift all values to the left of a point and I plot the new point at the right, (I have some flickering but it could be acceptable). This is my plotting control.My problem is that I have to clear the control (picturebox) in order to plot the shifted graph, but the method Clear of the Graphics class clears everything inside the picturebox, even my grid.How can i make always visible a grid "in" my picturebox?
1.a transparent image with a grid over the PB? (the clear method cannot remove it)
2.an image with a grid below the picturebox that must be with a transparent background to make visible the grid?
3.multiple layers on the same picturebox?
i'm doing a simple form tat could add picturebox during runtime and i could add several picture into it.
View 5 RepliesHow would I use GetPixel() to get the RGB Value of a Pixel?
View 3 RepliesI am working on a WPF application and I am looking to retrieve the color value of a pixel on the screen (the screen being the Window that my application is displaying).I have found a tutorial that shows how to do this using the gdi32 API but since this is a WPF application I am looking for a way to do this without using GDI.
I have also found an example of how to retrieve a pixel from within a picture using a CroppedBitmap; however,I'm not using an image in my application.
Ok, so I have a new challenge for the D.I.C. Heads. I'm making a simple little game using VB controls. I know it's not the best idea in the world but it'll have to do for now!
Here is whats happening. I've created a class that inherits the PictureBox control that I want to use to place my game pieces on the playing field.
Dim pbArmyUnit(0) As ArmyUnit ' ArmyUnit is a Class that inherits Picturebox now I create the playing pieces at runtime as needed and append them to the array. Player currently buys the units and places them on the playing field.
[Code]...
On a side note how can I look at a stack of pictureboxes all created at runtime to determine whats at a particular location? Example. I move my army unit over top of the picturebox that shows my forest. How can I tell what picturebox I just moved on top of? does that make sense? I don't need code for this just directions on looking at the right info so I can figure it out.
I am creating my terrain at runtime as well since it's randomly generated. and I'm basically making an array of 192 pictureboxes with the appropriate terrain image as well as some other modifiers. Just like with my armies above I've inherited picturebox and created a terrain class array, this way I'm able to add my movement modifiers etc, directly to the picturebox I place on the screen. It's these pieces of terrain that I want to be able to check before allowing the unit to move into them! to get movement costs etc.
how do i create an event for MouseEnter but instead of the mouse a picturebox?
View 5 RepliesI have a picturebox on a form. The image in the picturebox is actually a report. I want it so if the user clicks on it it will zoom larger --- while the picturebox remains the same size. Of course, the entire image will no longer be seen. So I also want to be able to drap this image around with the cursor. The examples I've found for picturebox zooming cause the picturebox itself to get bigger and smaller. I need it to be like an Access report. Click on the report and it gets bigger. Click again and it goes back to the full image. Does anyone know of an example or tutorial in VB.Net for this type of zoom-with-fixed-size picturebox function?
View 2 RepliesI am trying to draw a line on top of a picturebox but it keeps going behind the picturebox, even when I do Line.BringToFront()
View 10 Replies