In Vb6 you could make a private type by doing the following:
Private Type PointAPI
X As Integer
y As Integer
End Type
Vb.Net doesn't support this. I need it to store the x and y position of a certain pixel. I know i could just declare an x and y variable but i would rather use something like:
xyCentre.X = 5
xyCentre.Y = 10
during 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 RepliesIs there a way to get the color at a certain mouse position in the active window? I remember doing it with AutoIt Script, but I can't find any references for it in vb?
View 6 Repliesi know there are 1000000 posts about getpixel but i cant find what i need. i am able to get the color of a pixel at the cursors position without a problem. I need to be able to compare that color to the color of a pixel on screen at x,y without moving the cursor. how can i go about this?
View 1 RepliesIs there a way to implement what Ada calls Private Types?Specifically I want to define two ID types (internally simple integers), but in a way that are assignment and operator isolated (aka SUPER strict type checking)
I can get close with a class, but you cannot have
a) constant classes (or structures) or
b) have optional parameters of classes or structures
c) class copies require clones to avoid assignment side effect (a1=a2 becomes a1 = a2.clone())
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In Visual Basic 2010, how do I fetch the color of the pixel on the cursor's position (whether it be outside the program or inside)?
View 4 RepliesI have a bunch of PNG images in my project's resources. I need to find out whether the pixel at any X,Y is transparent or not. Testing the alpha of the color returned by GetPixel doesn't work, and I can't test it against the transparency key because Bitmap objects only have a MakeTransparent method, for some strange reason. Is there a way to tell?
View 2 RepliesMy brain is fried at the moment, so here's the scenario.I have a form that adds a member to my VB.NET application.When I press submit I add their details: name and number as well as what products they want (internet and phone). Internet and Phone are their own class as is member.
I want to add that they HAVE whichever they have chosen and with the member store it.
[Code]...
As what happens is once the member is created (stored) I will go to input how much they have used, and then store that. But to do so I will need access to the internet and phone classes, which are associated with said member.
I have a question (suppose to be simple). The question related to reading text file which is in the below format.
[Code]....
What I want here is to store the first data column in the file to be stored in AreasString and 2nd column in Level, 3rd in Importance and so on untill the end of the data. In addition, How can I check the type of data? For example, if I want to say: If 10.25 is double then msgbox ("it is double") else msgbox ("it is integer")
Apologies as this has probably been answered a million different times a million different ways already. I'm trying to control the mouse. I wish to move the mouse to a given pixel position (x, y) and cause a click. I don't want this to be limited within a form, as I want to control another application. I'm using VB 2005.
View 4 RepliesOperator '+' is not defined for types '1-dimensional array of Byte' and 'Byte'.How would I change the assignment statement in the code below so that each indexed byte position gets assigned the converted integer value in the for loop?
Dim byteArray As Byte()
Property Data_Out() As Integer()
Get[code].....
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
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Is there a quick way to check the color of a pixel on the screen?
View 2 RepliesI am trying to set a pixel a particular color. The code below does not work and don't know why.
Dim myimage As New Bitmap(PictureBox1.Image)
Dim i As Integer
For i = 0 To 59
[code]....
I also checked the Microsoft's sample code for setpixel which is below, does not work either. At least, I could not make it to work. I have used it within picturebox1_paint subroutine but got nothing.
Private Sub SetPixel_Example(ByVal e As PaintEventArgs)
' Create a Bitmap object from a file.
Dim myBitmap As New Bitmap("Grapes.jpg")
[code]....
if for example i have two private sub I declared a local variable on private sub a... is there a way that private sub b could use the variable created on private sub a? Im asking because im in a problem in my app were using global variable is not an option to make the long story short
View 5 RepliesI am downloading a JPEG image from a site and then I need to find the darkest pixel of that image. It also needs to be very fast since speed DOES count here, majorly. (probably has to use an API)
View 4 RepliesI am looking for some information on getting the colour of each pixel in a picture. The ide is to get the colour and then have my program draw a line along that colour itself. For example. If i have a black square on a white background, I want the software to be able the draw lines on the four edges of the black square, Is this possible?
View 9 RepliesThis program using Visual Studio 2010, WIndows Form App I want to create a program which need RGB value from an picture in PictureBox But it has an error, NullReferenceException was not unhandled
The code Private Sub PictureBox1_MouseDown(ByVal sender As System.Object, ByVal e As
[Code]...
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've set up a transparent user control (used for drawing tools) over a page, and I'm trying to set up some code that will allow you to click through the control if the pixel underneath the pointer is transparent, but will NOT let you click through if the pixel is colored. Basically, if they've drawn a line there, I don't want them clicking through it.
View 5 RepliesI am trying to make an application that can do effects to images but the problem is when I use large photos its takes a very very long time. I am reading it per pixel with bitmap's GetPixel and SetPixel methods. Is there anyway to make this process faster without using C# or C++?
View 1 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 RepliesHow can I move the mouse to a pixel location of a program?[code]I know it doesn't work, but I'm trying to make it easier to understand what I'm trying to do.
View 5 RepliesI am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
We stream the BBC news channel through a laptop hooked to a PC in reception for our clients. Annoyingly the stream is interrupted randomly (the line isn't dropping, it's the BBC's problem). Therefore when it's interrupted we get an error screen appearing which we have to go and manually refresh to get the stream back playing.
My intentions are to build an app which will be run alongside (silently) the stream monitoring intermittently a range of pixels. If the range matches the error screen that I mentioned previously then I'd call "Esc" to exit the full screen and then "F5" to refresh the browser and finally a double click on a specified coordinate to bring it back to full screen.
Problem: I've been doing some googling and so far have only seen related posts where the comparison is between two saved images. Due to this I expect the answer to be "Take a screenshot every now and then, compare, return result".
I am loading an image on picturebox, then trying to paint some particular pixel but it does not work for the tif image that I have. I got the following error message "SetPixel is not supported for images with indexed pixel formats."
View 5 RepliesThere are a lot of games that many languages can be coded in.MapleStory, WOW, FlyFF, and more. Can we do this on Visual basic?I mean we can. We just need a packet system, like to send the getHello packets and ****.
View 1 RepliesI always used to define variables like Dim xxxx As yyyyy. In the tutorials I'm looking at though they do Private Const xxxxx As yyyyy. I wonder just what is the difference here? What is the significance of this change? What am I actually doing with 'Dim' and what is this Private Const doing different?
View 12 Replies