Forms :: Coding A Timeline - Update Every Second And Advance The Blue Bar By 1 Pixel Every Second
Jun 2, 2010
I'm working on a project where I need a timeline similar to what you would see within a video editing program. Picture of my timeline - [URL]
So far, I've designed the timeline using nested pictureboxes. The main area of the timeline is a picturebox, and each track (marker and test) are children pictureboxes contained within the first. The marker dots are custom controls that are children of the marker picturebox. The idea will be for the slider to control zooming of the information in the timeline and the scrollbar to control panning of the timeline. Live data will be added to the timeline. This live data will include the marker dots and painting on the bitmap contained within the test picturebox.
I've got portions of the timeline functioning, but I'm stuck on how I should go about panning and zooming. I would like the timeline to update every second and advance the blue bar by 1 pixel every second. The problem starts when the blue line reaches the end of the timeline. Once the blue line reaches the end, I want everything on the timeline to start scrolling off the left side. What would be the best way to go about doing this and still be able to maintain the data written to the timeline? This could be a lot of data if the program runs for several hours.
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May 11, 2011
My application having one mdiform in that form six child forms are there.Switching of one form into anather form blur bars are appearing form at the title of every opened child form.These six child forms are opens in mdiform.how to remove the blue bars are appearing from every opened child form in mdiform.how to remove blue bar are appearing from switching of one childform into anather in mdiform using vb.net?. how to remove these blue bar.
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Dec 25, 2011
I'm looking forward to reading and adding more to the community here. I've created a text based rpg. Next semester we are learning Visual Basic. I'm on winter break and I would like to get a head start on my learning. I've been working on creating some forms and message boxes. What is throwing me off, is that I have a good feel for doing coding so that I get functionality the will produce effects in a console. Coding the forms is a bit confusing for me. Is this something that others have run into? Is their some good primers for VB? I don't have my text books yet.
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Aug 21, 2011
I have a probelm to my quotation..
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Mar 12, 2009
I have created a new entity attribute in CRM, now trying to get the IntelliSense updated in Visual Studio 2005. I don't create a project in Visual Studio, but just open an existing website, and do coding in Visual Basic.I have tried restarting Visual Studio. I tried searching for .NCB file, but it's neither on my computer nor on the web server, so there is nothing to remove.Anybody has an idea what else can I do???Is it possible to regenerate somehow .wsdl file and is it related to this at all?
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Sep 28, 2010
I am creating a project with a maximized per-pixel alpha form. However, the normal input events (MouseDown, MouseWheel, KeyPress, etc) are never raised. I've been able to create some bare-bones functionality by overriding the WndProc method, but some things elude me. For example, I want to detect mouse wheel scrolling. When I check for the mouse wheel message, it works fine. Then I try to use the GetLParam function to get a MSLLMOUSESTRUCT with the scroll data. However, when I try to use it, I always get an error:"Attempted to read or write protected memory. This is often an indication that other memory is corrupt." What can I do?-Must Program! Error: Not enough time to program
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Jun 1, 2011
i have connected my SQL SERVER 2005 database to vb.net and program is capable to show the database in the data grid view. but what i want is when i change the data in the data grid view and click onto update button,changes i made should be saved in database so when i execute the application again i should be able to see the updated database in the data grid view.
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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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Mar 30, 2011
I currently have a working program that creates one colored pixel in a Bitmap, displays the bitmap in a pictureBox, and "jiggles" the pixel by making it move in a random direction by 1 pixel every time a button is clicked. I want to make the pixel move automatically until a Stop button is pressed.
[Code]...
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Jun 23, 2011
I have a alpha mask (grayscale)... and want to specify a color (eg color.blue) and then be able to paint the blue version of the new image(using the solid color with the alpha mask) to the screen using graphics...
How is it best to do this?
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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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May 14, 2009
Recently, someone asked me to code a program for them in Visual Stuido. What they need is a program that allows them to enter names, and each name has to pick a option (i was thinking that the user would select a radio button) and each option could only be selected a limited number of times.
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Mar 30, 2012
I'm creating a timeline (Availability report) report of appointments in my system. It could show multiple user as this pic shows. I have setup my report to look like:for Each 1/4 time segment there is a related db field. In the report I set the color of the time segments based on these db fields. My Issue is that I need to determine which time segments need to be set, based on a start and end times. This calculation will only be working with one days worth of time (6am-9pm). I've currently setup a array of Boolean values to represent each time segment. I pass that array to the "add to db function".
My problem is figuring out what is the best way to do this calculation. For example, If I have an appointment starting at 9:15am and ends at 10:30am. I'd need to set the following segments
9:15, 9:30, 9:45, 10, 10:15 and 10:30
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Jun 18, 2012
I have a complete ms access system build(tables, forms, reports, query). I am in the process of using vb to re-create the system. I managed to show every fields on my vb forms without any coding. However I have some wrong information in my combo boxes. For example I will have repetition(duration, ie 3 months is showing 5 times). Also when I use the arrows only three records are showing. It says 104 records and only shows 1-3. I have also checked all the data in vb that has been transfered from access and it is all similar, ni repetition.
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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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Sep 17, 2009
I am writing a program that takes a shipdate and generates a timeline of deadlines for a manufacturing job by working backwards from the shipdate. I hav no problem handling weekends. However, some holidays are giving me problems. For holidays that don't have a set date (Thanksgiving, Labor Day, Memorial Day...) what is the best way to determine the date they fall on? Most of the examples I have seen use an array of dates (either from a file or hard coded) for these holidays. Is there a way to do this tha won't require someon to generate a list every year for these holidays?
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Jan 31, 2009
I am making very simple movie editor. I can do the rest except from making a timeline and a area to keep the video in like Windows Movie Maker.
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Dec 1, 2011
I'm looking to add a scheduler to my application using a form of timeline control. Can anyone recommend a good control for this use? Something like the [URL]
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Oct 14, 2009
Ok a newbie question that I just can't find the answer to:I created a simple form with 3 textboxes and have a problem using a barcode scanner to read data in to the form. The scan gives me the correct data, but it appears in VB2008 express the CRLF get absorbed and doesn't go to the next text box. In fact hitting the enter doesn't do it either, while the tab key does.
If I scan to notepad, wordpad, etc. the CRLF causes the cursor to drop to the next line, so I know the barcode scanner is programmed correctly. What should I be looking for to have the scanned data cause focus to go tot the next textbox?
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Dec 24, 2010
Uploaded with ImageShack.us how can i move the highlighted listbox on the right side to the empty row(the one that is highlighted on the left side) using a button.
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Sep 5, 2011
I am trying to create a software where video files play continuously using a timeline like Windows Movie maker or Pinacle Studio. So i have no idea how to maintain the time line. Will i use Timer Control for that or any other methods are available.
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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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Dec 1, 2009
I'm having difficulty coding for a trade discount. If the order is made more than 10days in advance the customer is entitled to 5% trade discount.
[Code]...
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Nov 13, 2009
I have a project which contains a large number of lookup tables, and I have all of these lookup tables represented in a single typed DataSet, which contains TableAdapters for each lookup. I've designed an editor for these lookup tables, which should allow editing of one of these at a time. My front-end is written in VB and WinForms, the back-end is a SOAP web service; I can successfully pass the changes to the DataSet back to the web service, but can't find a way to use a TableAdapter to update the single table that has been changed.
What I'm trying to do is instantiate the appropriate TableAdapter for the updated DataTable by sending the name of the table back to the web service along with the DataSet, then referring to the TableAdapter with a dynamic name. The normal way to instantiate a TableAdapter is this:
Dim ta As New dsLookupsTableAdapters.tlkpMyTableTableAdapter
What I'd like to do is this, but of course it doesn't work:
strTableName = "tlkpMyTable"
Dim ta As New dsLookupsTableAdapters(strTableName & "TableAdapter")
Is there any way to achieve this, or am I taking the wrong approach altogether? My other alternative is to write separate code for each table, which I'd prefer to avoid!
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Jun 12, 2012
I have some forms that are slow to open, I want to do is to show you something the user is loading, the time delay is not always the same, as is done
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Aug 11, 2009
Currently on an internship from my CS degree, we have some down time and I'd like to spend it working through a series of problems (although none too large) that would advance my programming skills and allow me to dip my toes in a large breadth of different topics and areas. Unfortunately, everything I do must be done in vb.net on .net 2.0, without downloading any particular libraries.I've already worked through many of the "code-golf" tagged problems on here and the programming praxis problems posed by dailywtf.
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Mar 23, 2010
I have written a VB.net 2010 Powerpoint addin that needs to be able to advance the slide via a button on it's main form when running the presentation. The functionality I require is exactly as if you press the space bar while focus is on the slide show window.
I have tried-PowerPointApp.ActivePresentation.SlideShowWindow.View.Next
But this does not work in excatly the same way, namely when working with several animation sequences on the same slide.I am looking into using the API - FindWindow & SendMessage but I do not fully understand the steps to get this to work, or even if it can. Or is there another way?
I am using Visual Studio 2010 RC with Powerpoint 2010 Developer Beta.
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Dec 19, 2011
i am using an unbound datagridview so i can dynamiclly add rows. all that is working fine. but the grid is not is the location i have coded.. i am using the defualt form as a base then coding the unbound stuff in.. should i just create a blank class file and do everything? the only problem i am having is the grid must bees in the correct location according to the pixel point that i have given it. Right now it is placing the grid at point (0,0) no matter what point is entered on the line for location. so what am i missing??????
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