RGB, Transparency And Locate Pixel
Jul 20, 2011
I am making an image modifying program and would like to know how (after I have located the .png, .gif, .bmp etc) I can identify the properties of a certain pixel (RGB and the amount of transparency), how to change the colour of a pixel (similar to first part) and how to tell the program to "move along to the next pixel, unless you are at the end of the image, in which case; move down a row and continue" please help. Also, it is a program which converts a greyscale image (black, white and grey) to black, semi-transparent black and transparency). Just in case that helps.
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Nov 17, 2011
I'm trying to create a program using Visual Basic .NET 2010 that alters the use of my media keys - Volume up, Volume down, Play, etc. All of the example I have found don't seem to compile quite correctly in 2010. Don't get me wrong they run fine and look exactly as specified but the problem is that the form cannot be edited because it claims the designer code is ill-formatted or something along the lines of that.
Can anybody possibly spare a project or form that has perpixel alpha transperancy?The only thing i want to do is show an overlayed png that has an alpha channel, on the desktop. The form border style will most certainly be "NoBorder"
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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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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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Sep 13, 2007
Is there a quick way to check the color of a pixel on the screen?
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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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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 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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Aug 10, 2009
I have a windows form form1 on that form one textbox and one button.
textbox.text='200'
when I click in the button I have to show a table(vendor) and I need to locate on vendorno='200'.
in vendor table there is 1000 data fields are vendorno and vendorname.
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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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Oct 30, 2008
i got in to very strange error message. I have create one simple appliation which will download webpage from web and put that in htmldocument so that i can parse it later.
here is code for this
[Code]...
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Sep 4, 2009
I have already done the creation of button and the dragging of button at runtime already. But now i need to know how do i save the last dragged button on the form and also detect the name of the last clicked button.
i now drag a button to coordinates 25,254. so when i exit the form and the next time i launch it, the button will still be at 25,254. and this one will go on for the number of button i created like 100. so when i launch the form the 100 button will be at the exact position where i last saved them. the second part is lets say i created button1 and button2 on the form in runtime. so when i clicked the first button, it should display button1. and if i clicked on button 2, it should say button2. same goes for like 100buttons.
[Code]...
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Jun 17, 2009
important info : my o.s. is windows7
i just recently published my app, and when i try to locate the exe file from the start menu/my app folder/my app shortcut's properties, i get this as a directory:
C:Users rujadeAppDataRoamingMicrosoftWindowsStart MenuProgramsmy application
now when i go to that location, in windows explorer, all there is a shortcut looking icon. when i check the properties for that, the Type of File : is Application Reference (.appref-ms) . is this my app, and if so, why does it have that little arrow on the icon like shortcut icons do?
i cannot seem to locate the .exe file by doing a system search, other than locating my other similar app which is located in a set folder and was not run from a setup. and if possible, how can i install my app in c:program files and not that set location?
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Aug 2, 2009
I'm trying to locate a file path using code but don't know how. I want to do something along the lines of:
dim currFilePath as string = '...
dim file As New IO.FileInfo(currentFilePath + "/bin/debug/sales.dat")
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Nov 1, 2009
Does anyone know where i can locate my Database.mdf this is a file inside my application but when i make the app and deploy it install it on my system i just cant find it anywhere.
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Feb 2, 2010
I am making a program that stores all information that is entered into a directory and then zips that directory onto the C drive. It is working perfectly fine, but I think it would be easier for the user if the final directory was zipped onto the desktop.
Is there a way that VB.Net can locate the user's desktop and then zip the directory and place it on the desktop? For example, zipping it to "C:Documents and SettingsAdministratorDesktop" would work on my PC, but it may be different on a user's computer.
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Oct 6, 2011
I am trying to use regular expression for extracting data from web page. but everytime i change the URL i need to change my regular expression for URL.
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Apr 27, 2011
I should update a value of progressbar that not is placed on main form but on another "wait form". I have wrote this code in
[Code]...
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Jun 1, 2012
VB2010. I'm trying to figure out how to locate the desktop path for a user on another pc/server. Something similar to:
Environment.GetFolderPath(Environment.SpecialFolder.Desktop)
The main reason is we area talking about an Environment that has XP, Win Server 2003 (TS), Win Server 2008 and Win 7. Obviously different path depending on the OS. I need to copy a file to a users desktop and would like to do so without having to hardcode the path as it could change depending on where they are working from.
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Apr 29, 2011
i pulled some code off the internet for resizing images on the fly. it works great but only if i give an absolute address for the location of my files.
here is the portion of code:
Dim src As String = "c:downloadsff.jpg"
mage = System.Drawing.Image.FromFile(src)
[code].....
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Aug 10, 2009
i have 12 button and 12 panel hooked at this button.but sometime after i clicked this button,that panel not at position i want.So, how to locate this panel for good looking and at position i want? to left,up and down.tq for your help.
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Apr 14, 2011
When I use the Debugger to to debug some code, I see a subrountine (or function) call.
How do I quickly locate the code for that subrountine (or function)?
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Jun 22, 2010
was doing programming and ran into this assignment. It says: create a "textbox1" to let the user enter a sentence. Then create a "textbox2" to let the user enter the text they want to remove. Then create a "textbox3" to let the user enter the word they want to replace.
For example, I enter "I love cookies very much" in "textbox1".
For "textbox2", I enter "cookies".
For "textbox3", I enter "eggs".
[code].....
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Oct 28, 2010
I have a function which uses MSXML to post an Xml document which yesterday started failing despite no change being made to the code. The function is as follows:[code]The Xml document and the address being passed in are both correct - the line which causes the error is xmlHTTP.send(xmlDoc). I have tried this on 2 different machines with the same error each time, and have also tried resinstalling MSXML3, with no success.[code]
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Feb 14, 2010
I have so far been able to locate on instance of a code, It gives me the game name and game url How do I get the next game name in the document?
[code]...
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Jan 23, 2012
I have written a simple program in VB 2008 that in a part of it, it loads some images from a directory with a formula like this :
PictureBox.Image = Image.FromFile(CurDir() & "photos�.jpg")
The photos are located in : inDebugphotos this works fine and loads images when I run the program.But after I publish, it can no more locate the files and I receive an Error:
Unhandled exception...
c:users.............................................photos�.jpg
Now I need your kind help please in these 2 cases:
1- Can you tell me how I can correct the formula?
2- After publish, dose the setup file contains my photos folder as well?
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Jun 2, 2010
I have a dataset, a bindingsource, a tableadapter, and a bindingnavigator on my form. how to find data and locate to the new position?
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Sep 24, 2009
I need to obtain the full path for a file located in somewhere in the system search path for executable files, when I only have the file name. Another user came up with the following code. However I was hoping to find something that is more directly supplied by the system, rather than a "roll your own" solution such as this one. Also, the solution below could run into problems, however unlikely, because it is possible for Windows file and folder names to contain semicolons. The split function doesn't pay any attention to quotes, and could therefore improperly split a path that includes a folder name with an embedded semicolon.
Private paths() As String = Split(Environment.GetEnvironmentVariable("PATH"), ";")
Private messageOutput As String
Private fileInPath as String = "notepad.exe" ' for example[code]....
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Oct 27, 2009
Ive tried searching for hours now and cannot find out why my code (aka, me.) is failing
Basically... I have a listview control which I'm passing a datatable of products (ID, Name, Description and Price columns), and im trying to make it so that when the "checkout" button is pressed, it parses through all the controls on the page, finds all the controls with the correct ID's and adds the items values to the cart.
ive checked all my ID's in the source code and they match up to the ones being requested by the FindControl method.[code]...
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Sep 10, 2009
How to locate a button based on the handphone number or any number? That means if I assign the button to coordinates 25, 14 and number 1 as the button name. So when i key in 1 in the text box, only that button will light up the rest wont. So that means the statement will be like:
if textbox1.text = "01" then
' button at 25,14 backcolor = black
end if
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