VS 2008 - Display The Color Of The Current Pixel Under The Mouse Pointer
Aug 6, 2009
I want to make a small application for my web designing needs that will display the color of the current pixel under the mouse pointer. I need this to work on the entire screen (no matter what form/application is in focus) and it needs to update in real time.
I'm not worried about the math or working with coordinates, but I don't know (and can't find) anything that might get the color of the pixel under the cursor on any form. I've found a small number of VB6 examples, but I'm with .NET 2008. Does anyone know of a method or anything (DLL even >.<)
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Jul 29, 2009
I would like to get the color of a pixel at my current mouse location, when the mouse is clicked. The location is anything on the screen, not just a jpg, gif, png, etc..
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Jul 21, 2009
Is there a code in which the software scans the screen and point a specified color out of that scan and mark it.
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Dec 3, 2010
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.
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Feb 9, 2011
The title basically states it. Is there a possible way to do this?
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Nov 8, 2009
i 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?
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Mar 16, 2010
I have put a fair few hours into this now and have had no luck, i found this piece of code on the net that seems to offer exactly what i need.[code]...
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Nov 22, 2011
I am using Vb.NET to build a windows application. In menu-strips by default the submenus will appear on clicking on the menu items. I am willing to display the submenu items by hovering the cursor on menu items. What is the procedure to do that?
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Dec 24, 2010
I am developing an application with multiple picture boxes, each displaying a line graph. I want to be able to have a label following the mousepointer showing xy coordinates of the point. I also want to allow a user to zoom in on a specific picture box by double clicking on it. The code does what I want as written (changes backcolor so I know double click event fires) except moving the position of the label to follow the mouse pointer.
However if if uncomment the line in the MouseMoved sub:
LB.Location = New Point(e.X, e.Y)
Then the label moves as desired however the double click event no longer fires.
Public Class Form1
Dim PB As New PictureBox, LB As New Label
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Controls.Add(PB)
With PB
[Code] .....
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Jan 30, 2009
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?
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Jan 31, 2011
I have a main form "Parent" and another "child" form. When I am filling a textbox in the child form the mouse pointer disappears. Then I hit the tab key to jump to a combobox. At this time when I move the mouse, the pointer doesn't come up until I click the mouse button. This is annoying and the user of my program doesn't like it. How can I keep the mouse pointer always on top. NOte: although the main form has the parent property as true, the other child form are not defined as child forms.
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Sep 13, 2007
Is there a quick way to check the color of a pixel on the screen?
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Jun 24, 2009
okay i have a simple form like this How can i Move my mouse to the Red part in the Middle of the form i know it's something to do with Pixels but i don't know how to do that if anyone could answer my question i would be so happy so please if you know Please
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Apr 6, 2011
I've been working on a GUI in WPF which I'm fairly new to, having only used Windows Forms up until now. So far, my GUI is very simple: it contains two rectangles, each of which drops a shadow. The shadow creates an effect of rectangles "floating above the canvas" so to speak.
When one of the rectangles is pressed, the myRectangle.MouseDown event is handled such that the shadow goes away, thus creating an effect of the rectangle being pressed down onto the canvas, like a button.Similarly, when mouse button is released, the myRectangle.MouseDown event is handled such that the shadow reappears and the rectangle "floats" again. This behavior make them resemble buttons. Note, there a reasons I want them to be rectangles and not custom buttons.
[Code]...
If the pointer leaves a rectangle while mouse button is pressed, I'd like shadow to reappear. This is arguable simple, because theoretically in this case, any time myRectangle.MouseLeave is raised, the shadow should come back on, even if it was already there.If the pointer left a rectangle when mouse button was pressed, then came back while before the button was released, I want the shadow to disappear again. This one is what gives me problems. No idea how to do this.
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Oct 4, 2009
I have a JPEG picture from my digital camera and I want to find the color of a given pixel, say x=10, y=10. How would I go about doing that? I have searched around on the form but nothing is working. I have loaded the picture into a picture box but dont know where to go from there. Also is it possable for it to give me a number corrosponding to each color instead of 3 numbers, one for red, one for green, and one for blue. I am eventually going to be using this to scan through many
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Sep 17, 2009
If I put this code in the form, the mouse will be moved once. I want it to "freeze" the mouse at the point that its moved at. If I put code in timer (which it is now), the mouse will keep searching for the color, so the mouse moves around like crazy. How do I change my code so that it will "freeze" the mouse once it finds the color? [Code]
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Oct 6, 2008
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.
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Jul 29, 2010
How 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
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Apr 3, 2009
Does anyone have any code snippet on how to get the pixel color of an hwnd using GetDIBits and print the result as a RGB value? I used copyfromscreen method and getpixel but it cannot processes it in 1ms timer interval.
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Mar 12, 2009
In either of these (preferably Vb6), is it possible to replace a specific pixel color with a defined color? For example, if i scan my screen for 100,200,150, is there a way i can replace every instance of that with a specific color?
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Feb 20, 2012
How do I change my mouse cursor/icon to use a image or icon. I want to make a simple "wack a mole" type game but I dont know how to change the pointer to a icon or at least get a image to follow the pointer.
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Aug 25, 2010
I want to know which mouse pointer is selected anywhere in windows (so also outside my application).
I've looked into Cursor.Current but I can't figure it out. Perhaps someone here can tell me how it's done?
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May 13, 2011
I am attempting to hide the mouse pointer when there has been a few seconds of inactivity and then re-show the pointer again when the user moves the mouse. I have been able to get the mouse pointer to hide and re-show as I require it, however when I execute grid.Children.Clear() and grid.Children.Add() the mouse pointer re-appears (but again hides after a few seconds of inactivity).
My code is as below:
Private Sub Window1_MouseMoved(ByVal sender As Object, ByVal e As MouseEventArgs) Handles MyBase.MouseMove
[code]....
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Oct 2, 2009
How would I get the current mouse position?
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Feb 26, 2009
Change mouse pointer on Timer_Tick? [code]...
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Apr 17, 2012
i want to make a custom mouse cursor but I found that can be hard so I want to go the next best route. I want to see how you make an image follow the mouse pointer. I assume it would use some kind of image = mousepinter new point (x, y) or somethign like that. Suggestions or samples? In the end i want to take this code snippet and make a duck hunt game and a whack a mole type game
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Aug 1, 2010
Any one know an alternative way to draw the screen to a bitmap without using the copy screen function.Trying to avoid locking up the mouse pointer.
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Apr 19, 2010
I have a problem in a vb.net windows application.I have a form with Sizable form border style. but i want to resize it only from TOP & BOTTOM. I have done the code for this.
But when i move the mouse on form's RIGHT & LEFT border, the mouse pointer gets changed to resize mode. When i drag it form size does not change. but when i try to resize it from LEFT whole form moved to LEFT. I do not need it.
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Aug 11, 2010
I'm trying to move the mouse pointer to a certain position on the screen.I've done the declarations for both the SetCursorPos as well as the mouse_event, however I keep getting a Declaration expected error at this line: SetCursorPos(x,y),Perhaps something is wrong with the project or vb as well, cause I used an other declaration as well and when I wanted to use that I also got a Declaration expected error.[code]....
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Oct 15, 2011
I would like to know how can i change the panel location where my pointer points?
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