VS 2010 Direct2D - Graphical Simulator Application Using GDI ?
Apr 17, 2012
I've been working on a graphical simulator application using GDI. GDI is terrible for rendering what simple graphics I need, too much flickering and definitely not efficient. From what I have been reading GDI and GDI+ are pretty much out of date and what I should be using is Direct2D. But my problem starts when I cannot find ANY reference material to even begin coding. I found some examples for C++, but my little knowledge of C++ prevents me from implementing and translating it to VB2010. I have found someone on VBForums through a Google search that says he is starting a tutorial for Direct2D for VB2010 but I have yet to see anything happen.
All I am rendering are small circular shapes used for simulating cell growth, I have no problem rendering 10-20 moving shapes at a time with a small amount bearable flickering, but any more the lag worsens exponentially and the application will use a ridiculous amount cpu. Overall I want to be able to display and render over 100 shapes at a time. So my question is... Where can I find some reference material regarding Direct3D for VB2010?
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Dec 9, 2011
I'm trying to create a Windows Simulator. It will do basics, of course not the whole systemWhat I have currently:esktop with full screen (Optimizes for your screen and streches it for your resolution).simple taskbar with the menu.clock at the notifcation area.Desktop refresh (Will refresh icons as Windows does).now how to.
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Jun 22, 2010
I have used flash(.swf) animation & high quality graphical image there in my vb.net application. But problem is that sometimes when I click on menu it shows small line under it & take time to load it. It shows line under menu when load another forms though there is no line under that menu. I have 25 forms & every form has high quality image(image size is 1280*1024). Is there any way to get rid of this problem? Is there any way to make my application smooth though its high graphical & animated?
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Aug 20, 2010
I have a legacy application that has an interactive graphical user interface, but also periodically checks for files in a directory and reacts to the files. I want to launch the application from a VB program, but not see the GUI (i.e., just let the file interface do it's thing). I really don't want to see the application running on the desktop at all (e.g., no windows, nothing on taskbar), the only evidence would be if I checked task manager I'd see it running.
Obviously this app would be ideally a service, but that's not where we are and I can't change it so I'm trying to simply not see the GUI.
I've seen the ProcessStartInfo.CreateNoWindow and WindowStyle = hidden flags but they don't hide the GUI of the legacy app.
again launch the legacy app (actually an unmanaged C++/MFC app) from a VB managed admin app.
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Feb 15, 2012
I'm trying to hone up on my (beginner) coding skills & I would prefer that the the 'Designer coding window', not the 'Design window', wouldn't interfere with these studies. Sometimes it's there & sometimes it's not. I don't understand it at this point & would prefer it wasn't there. All I need is the 'Design window' & the 'regular coding window'.
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Feb 4, 2010
I am using Direct2D and the speed is so much better than gdi.however when i call the Dispose method of a D2DBitmap object no memory is freed up even after a garbage collection
so i guess my question is how can i properly dispose of a D2DBitmap object?
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Mar 29, 2010
i want to build my own electronic circuit simulator which is use mathematical models to replicate the behavior of an actual electronic device or circuit. Simulating a circuits behavior before actually building it can i do that with vb.net is there any library that deal with simulation or something
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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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Feb 24, 2009
I am new to VB I get this error message "Conversion from string "" to type 'Double' is not valid. when running my app, (the underline codes are the errors), which is a basketball simulator. How can I correct this:
Private Sub playButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handle playButton.Click
Dim rank As Integer
Dim player As Integer
Dim shoots As Integer
Dim RandomGenerator As New Random
[Code] .....
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Apr 23, 2009
A gyrocompass simulator? Basically i work with stabalized VSAT antennas that track a satellite around 30,000 K in the sky from a ship getting tossed around at sea. These antennas need to know where they're pointing so they can find the satellite, this is where the gyrocompass comes in. It tell the antenna how many degrees from north it is pointing.
I need a simulator to imitate the output of a gyrocompass on a ship that is moving around. The program would pass data out of the serial port so i could hook it up to the antenna and it would know where it is pointing when i am testing it.
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Aug 15, 2009
I am totally new to the graphical representation of the data. I want to make a progress report of students, based on marks achieved each year.For example, in year 2005 marks were 750. in 2006 780 in 2007 800
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Jul 24, 2010
want to make my program look nicer , but i dont exactly know how should i make it's visual for example making a menu or else
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Aug 2, 2011
I have a file from the client which is a text file. I have to decode the file to a graphical representation. Is there any way I can do it?
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Dec 30, 2009
I want program to do Graphical Representation of array Sorting in vb.net with bars/shapes.
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Oct 8, 2010
What is the best way to write a GUI for C++?
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Sep 17, 2011
i want the user interface to be kinda similar to the jQuery UI. This means themed buttons and windows(preferabely the ones form jQuery UI) Also, i'm looking for nice sliding and morphing windows.
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Mar 6, 2010
How do I access SqlCommand object graphically. I couldn't find SqlCommand tool in the ToolBox under Data group to drag it into my form
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Apr 7, 2010
I am writing a app and I have a treeview. This treeview gets populated with parent and children. I also have a panel and a picturebox with a image in the picturebox. On top of the picturebox I and writing some Graphical objects.
See code
Dim theG As Graphics = Graphics.FromImage(PictureBox1.Image)
Dim ComputerName As String = ""
Dim UserName As String = ""
Dim NodeIP As String = ""
[Code] .....
When Afterselect on the treeview item this code runs. However when I select another child/node the code runs again whcih is great it write over the top on the previous text. What is the command or how do I clear/delete/remove the theG.drawStrings from the first AfterSelect from the treeview so the new drwstrings are clear.
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Nov 25, 2009
I need some guidance on the codes on how to :
1) convert voltage level into graphical display,and
2) Voltage indication with moving needle .
[ Info : I've already input the codes to display the voltage in numeric, but not in graphical display ] =)
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Apr 20, 2009
I am working on this hangman project that has a graphical interface where the user has 2 options either guess the entire phrase or use a combo box to guess letters. I have the guess text box working but I can't for the life of me figure out why it is not working correctly with the combo box. The following is my entire code for the project. I have it setup to show me which phrase it randomly selected but when ever I pick a letter in that phrase it doesn't fill it in or anything. I'm thinking it is an issue with my loops.
I highlighted the section where the problem is occurring.
Public Class frmHang
Dim strWord(10) As String 'array of answer cchoices
Dim strAnswer As String 'the correct answer
[CODE]...
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Aug 20, 2009
My form has FOUR comboboxes populated from text files. The text files are loaded into an array into their own background process once completed are added to the combox. Due to the sheer amount of items the loading causes a lag and as the combobox are on the main GUI thread a glitch appear for several seconds. I then had an idea of loading the initial form, showing another form which is made the topmost form with a progress bar (values derived from the count of items in the arrays populated from the text files).
When I added the progress bar any other label or image on the SAME form did not show until the progress bar had completed, how can I resolve this? When I use it in conjunction with the other form i.e. using the form with the progress bar to populate the other in the background graphical glitches appear (mad transparency effect). I have the code from the form with the progress bar below:-
'Load City information
'*********************
'Set form title
Me.Text = " Application loading city lookup information ...."
'Declare string array to store list of towns
Dim citylookup() As String
[Code] .....
Why I experience the glitch (assume it's because of refreshing the item, some kind of repaint needed)? Any alternative solution to prevent the user from using the form until all the comboboxes are populated?
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Jun 30, 2011
I have created a VB.NET program using windows forms. The program runs on a remote PC and displays information on a screen. The computer does not even have a mouse or keyboard connected to it. The program shows the information based on the file that is loaded.I want to be able to change this file remotely to another file that is already on the remote PC. I can't use a graphical remote desktop client as we have very limited bandwidth.So, my idea is to change the file using the command prompt.I'm not sure how to do this. Should I use something like this and load DosModule first:[code]How would I then read commands that is send to the program? I also only want one instance of the program running.
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Jun 2, 2011
I am making a program for Microsoft Flight Simulator X, and When you are in Multiplayer in most games there is a Chat room, or Chat Box. Do you think that there is any way I can reach maybe an API or possibly monitor the Screen so If someone types !Help in the chat box my bot would Respond like "Software by (whoever) other commands" stuff like that. But I cant seem to find any info about API's in the Microsoft Flight Simulator X SDK about Multiplayer Chatbox or any multiplayer functions in that matter.
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Jun 4, 2010
I'm doing a project and want to do a graphical interface using V. Studio 2010. I want to use VB.NET as a programming language.
- Do I have to add any software to define VB.net?
- What is the function that reads the data from the serial port?
- If I want to receive more than one type of data, and I want to put/read them in separate text boxes, what is the function to filter the incoming data?
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Apr 18, 2011
1)Send a request to an external hardware by SerialPort1.write.
2)Receive this information in SerialPort1_DataReceived.
3)Set this information (integer from 0 to 31) on UserInterface (like cell phone signal level....)
How to pass level information to this graphical subroutine without receive cross - thread error?
========================
Serial request
========================
Private Sub Timer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer_Livello_Segnale.Tick
SerialPort1.Write("AT+CSQ" & vbCrLf)
[code]....
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Oct 19, 2008
I'm working on a design project where I have to use a Graphical User Interface that contains a drag and drop form. It consists of having a window dropped on a wall. Both of them are images to scale. I would like to know what kind of code I would have to use to show the x and y coordinates of one of the points of my window when dragged so when I drop it, I'm dropping in it on the desired coordinate of the wall.
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Jan 17, 2012
Final step in my application. I finally got all the requirements working, but now I need to have the application run in the background.
The application was written in Visual Studio 2010 VB, Win form app.
The requirements are as follows:
1.) run the application at start up
2.) no icon
3.) always in focas
4.) always runs in the background.
Here's the full code I have right now (working! whahoooo)
Public Class Form1
Private Property count As Integer
Private s As New Stopwatch
[CODE]...
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Feb 25, 2011
Every time I compile my application, during install I get the error:Cannot download application, the application is missing required files
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May 26, 2011
I am in need of a small application, that will allways be topmost and will send keystrokes to the last active application (typically notepad or an explorer window). My problem is retrieving the current active form (or application), when my application is started up. Every search seems to return old and rather complex solutions using Win32 library functions, but I was kinda hoping, that .Net allowed for a neater and more simple solution.I need a code example or link on how to retrieve the currently active application window from another application just starting up.
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Dec 7, 2010
I want to learn programming techniques so can make both windows and web applications more user-friendly, faster, safer, reliable and easier to deploy.
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