Get The Actual Pixel Coordinates?

Feb 24, 2011

how can i get the actual pixel coordinates, in the pb_mousemove event, from an image with sizemode stretched or centered or zoomed?

the e.location property returns the location in the picturebox, but i need to compensate for scale + the left + top offset of the image.

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Translate MouseEventArg.Location X,y Pixel Coordinates To Custom Grid Coordinates?

Nov 29, 2010

I want to translate MouseArgEvent.Location (x,y) coordinates into my custom graph coordinates. Mouse Y coordinates increase from top to bottom while my grid's y value increase from bottom to top. Given my following code, I would need to create 21,500 separate conditional expression for 100(y) x 215(x) possible coordinate locations for my grid.

Sub OnMouseMove(ByVal e As System.Windows.Forms.MouseEventArgs)
If e.X > 48 AndAlso e.X < 50 AndAlso e.Y > 397 AndAlso e.Y < 399 Then
MessageBox.Show("about 0,0")

[code]....

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Find Colour Pixel On Specific Coordinates?

Jul 5, 2010

I am running a program that is connected through the internet and i gets disconnected at times.I wanted to know how this would be to examine a color of a pixel , If the colour turns changes, my mouse will move to reconnect it.

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Find Pixel Color Anywhere On The Screen By Coordinates?

Jul 15, 2009

I need help to find pixel color anywhere on the screen by coordinates (for example pixel 377, 496).

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VS 2008 : Locating Coordinates Of Specific Pixel?

Apr 12, 2009

i want to locate specific coloured pixel on whole screen (if i set it to red then it should point cursor on the first red pixel that was found on screen)i managed to get cursor coordinates and pixel color of place where cursor is pointing, but i cant figure this out.

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VS 2008 VB 2008 Find Colour Pixel On Specific Coordinates?

Jul 6, 2011

I am running a program that is connected through the internet and i gets disconnected at times.wanted to know how this would be to examine a color of a pixel , If the colour turns changes, my mouse will move to reconnect

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Set Coordinates For Each Beam At Intervals Of 610 Then Write That Coordinates System To A Text Based *.SCR File

Dec 2, 2010

I am trying to build a coordinates system but am having trouble with how to.. What I have sofar is a textbox that allows the user to enter a length. This length is user defined but never smaller then 610 in length since this is the minimum unit size we use to build timber frames. The overall length of a timber frame is infinite (well not really, but it is for what I want) the timber frame has beams every 610mm set apart from each other (this is a legal requirement) so I want my vb.net to set coordinates for each beam at intervals of 610 then write that coordinates system to a text based *.SCR file

[Code]...

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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?

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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Determine The Pixel Width And Pixel Height Of The Largest Image?

Jul 4, 2010

How 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]......

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Interface And Graphics :: Get Pixel Color Of A Pixel On Screen

Sep 13, 2007

Is there a quick way to check the color of a pixel on the screen?

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Changing The Position Of A Form, Pixel By Pixel?

Jul 20, 2009

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.

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Allow The User To Enter Coordinates (X And Y Coordinates)?

Jan 18, 2011

Develop a Company Logo application that allows users to draw shapes. The application should provide the user with RadioButtons to allow the selection of the next shape to be drawn. TextBoxes should be provided to allow the user to enter coordinates (X and Y coordinates) of the shape, the width and the height of the shapes. Users should also be able to change the shape�s colour.my question is how to allow the user to enter coordinates (X and Y coordinates) of the shape, the width and the height of the shapes and change the shape�s color from combo box. pro help

below is my code:

Public Class Form1
Dim mycolor As Color
Dim mypen As Pen
Dim mygraphics As Graphics

[code]....

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Photo Coordinates Vs. World Coordinates?

Mar 26, 2012

I have a Geo-tagged snapshot (photo) captured with a my digital cam.

I want to read world coordinates (real coordinates) upon click on any pixel on this photo.

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Get RGB Pixel Color Of A Pixel On The Screen?

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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Get The Pixel Colour Of A Pixel On The Screen?

Apr 16, 2011

I 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?

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Comparing The 2 Images Without Actually Comparing Them Pixel By Pixel?

Mar 20, 2012

I 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)?

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Get The Actual Date?

May 2, 2012

how can I determine the actual date?

Of course I know the Now() function, but what, if the user sets the date on the computer f.e. 2 days back? I have tested it, I get the date from 2 days earlier.

Is there another way to determine the REAL actual date?

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Does Not Keep Track Of The Actual Rotation

Apr 1, 2011

I have a screen full of puzzle peices they are all rotated at different angles (90,180,270). is there a way to track the peices rotation? I was thinking of using a 2d array to store there rotation. however, I am using this code to rotate the peices:

[Code]...

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Get X / Y Point Of Actual Form?

Jan 2, 2012

How can I get the coordinates of a form (current form => Me) of the upper left angle of it on the screen?

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No Actual Image Displays

Jun 16, 2010

I am running windows xp media player. Everthing works fine except my photos. They show in library normal but when I select them to play they look as if they have visualized bars. No actual image displays. How can I correct this?

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Print Preview Different Than Actual?

Oct 22, 2010

The Print Preview document is set to the print document.[code]...

When I print the document (from print preview or my print button) the papersize/margins are different...this is how:

1. If I draw a rectangle from (0,0) to some width or height the point is in the corner of the print preview but on my actual printed page it is about 1/4 in to the right and 1/8 in down.

2. I have an extra inch or so on the right side and bottom of the "page" that print preview will print to but will be cut off in actual printing.

I am assuming that there are some default settings (like the printer gutter and letter paper size) that print is getting from the printer that print preview is not, possibly. I need to have my print preview look exactly like my actual printed page.

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Add A Checkbox To The Actual Top Of The Listview Colunm?

Dec 22, 2009

Right say you had 4 columns and decided to add a new one at the start just for checkboxes. originally your code is

[Code]...

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Building A Simulator Of An Actual Hardware?

Mar 30, 2011

I have a 3-axis robotic machine. But due to training purposes, i would like to create a simulator/emulator that act just like the 3-axis robotic machine. I want the simulator to be able to create its own virtual parallel port. So instead when i execute the coding that operates the actual 3-axis robot,whenever i send a trigger to my virtual parallel port, my simulator will start working. So my question is,

1) How to develop a simulator/emulator using Visual Basic.NET

2) How to access and create a virtual parallel port within my computer.

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Chart Displaying Value X10 Greater Than Actual Value?

Dec 15, 2009

I am having the following problem with a chart displaying a value that is heldwithing a variable but 10 times lager. But this is only happening in my programfor a user that is located in the Netherlands.If I run it from the UK or other people run it from other countries the valuesare displayed correctly, it only seems to be a problem for this one userin the Netherlands.I have checked my code and all is correct and there are no Multipliers added tothe value.To show what I mean see below, as I do not have the code to hand as I am currently at work.

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Copy Or Export Actual Files?

Nov 12, 2009

I'm using VB2008 and I have a CmdButton and a Listbox. When the CmdButton is clicked, it will look for all the files contained on a fixed directory and the names of the files will be enumerated to the listbox. I have that piece working perfectly.

The question is -- after the listbox is populated with the filenames, can I select one or multiple items from the listbox and copy the actual files from the original directory to a directory that the user will specify via browse folder dialog? Maybe right click on the selected item(s) then export? Just a thought..

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Day Of Week And Time To Actual Date

May 12, 2011

lets say i have a string that holds "Monday" and another string that holds "9:45:00 PM". would it be possible to look at the Date.Now() function and see when the next Monday is, and then convert those two strings into a date? lets say the next monday was 05/20/2011. I would want the date variable to hold "05/20/2011 9:45:00 PM". any ideas guys?

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Determine The Actual Type Of A ToolStripItem In C#?

Jul 31, 2011

I am converting a VB.Net application to C#. Everything else is going great. Except this bit. I have a function which builds menus,sub menus and seperators from a database. It can build a MenuStrip or a ContextMenuStrip which can then be assigned to a form.

This means that menus can be extensive and conpmex but managed outside the application, which I also use as part of my security access model. All menus are controlled from the database externally, it also means I can develop visual tools (Treeviews etc) to manage user menus. The application uses menus extensively which is by design.

Programmatically I want to assign an eventhandler to every item that isnt a dropdown or a seperator

In VB I would do this, (works perfectly)

[Code]...

"System.Windows.Forms.ToolStripItem' does not contain a definition for 'DropDownItems' and no extension method 'DropDownItems' accepting a first argument of type 'System.Windows.Forms.ToolStripItem' could be found (are you missing a using directive or an assembly reference?)"

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Get The Actual Property Name When Referencing An Interface?

Oct 29, 2010

Consider the following case:

Public Interface IHasDateUpdated
Property DateUpdated As DateTime
End Interface
Public Class MyClass

[code]....

Now, assuming I was referencing an instance of MyClass as an IHasDateUpdated; how would I determine the actual name of the property that implements the interface property via reflection?For example:

Dim x As IHasDateUpdated = New MyClass()

' How do I derive "MyDateUpdated" from "x" using x.DateUpdated?

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Know Actual Header Sent By Webclient In Program?

Jan 27, 2012

I used webclient to surf a site with a proxy and I got no result. I use firefox to access the same site with the same proxy and I got result.

I want to know what sort of header webclient send and compare that with livehttp add on in firefox

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Make The Actual Tabs Different Sizes?

Jun 29, 2009

Is there a way to make the actual tabs different sizes? I just want the tabs themselves different sizes not the whole thing. Seems like the itemsize property does this but it will only allow you to set one size. I want each tab to be a different size depending on its text.

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