Added Extra Buttons To 'stop All' Or 'run Two Motors Simultaneously'
Dec 18, 2010
I have a USB interface connected to my PC which is used to control DC motors (robotics). Supplied with the interface is a VB program that produces a form with text inputs (motor speed) and tick boxes (motor on/off). This program calls upon a supplied .dll for the interface. I have played around with this program and have added extra buttons to 'stop all' or 'run two motors simultaneously' etc.What I really want to do is run a sequence of events, for example:
-Motor 1 on, speed 50, run time 5 seconds
-Motor 1 off for 2 seconds
-Motor 2 on etc, etc
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Sep 16, 2009
[code] 'The description for the state.getbuttons() is:'Public Function GetButtons() as Byte (is a array of buttons).'The high-order bit of the Byte is set if the corresponding button is down, 'and clear if the button is up or does not exist.This code is used to show if certain buttons of a GamePad/joystick are pressed using the DirectInput method (DirectX SDK).This code shows how many buttons are pressed simultaneously. So 00 for zero and 00 01 if two buttons are pressed. I would like to know what button exactly is pressed (some kind of unique code for each button). But I can't get it done.
1. Is there a way so show all the bits inside the state.getbuttons()? (maybe there is a unique combination for each button).
2. What does &H80 mean?
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Nov 26, 2011
VS2010 (SP1) / .NET4 on Windows XP Pro Im having a slight issue with my password hashing function. The following function hashes the supplied password using SHA512 and returns a Base64 string.
[Code]....
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Jun 23, 2011
this is button 1:
WebBrowser1.Navigate("javascript:OnClick(go(512,5))")
this is button 2:
WebBrowser1.Navigate("javascript:OnClick(go(513,5))")
i try:
WebBrowser1.Navigate("javascript:OnClick(go(512,5))")
WebBrowser1.Navigate("javascript:OnClick(go(513,5))")
But this presses only on the second button ("WebBrowser1.Navigate("javascript:OnClick(go(513,5))")")
and not on two of the buttons.
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Apr 29, 2011
For a WinForms VB.Net application, I use the Bindingsource's filtering capacity to filter data, which is seen in a DataGridview. The BindingSource is from a DataSet, created using the Designer, and the data comes from a Access DB, using JetEngine and .Net 3.5. So basically:
Datagridview.Datasource = xxBindingSource
xxBindingsource.Filter = "[extended filter string with multiple columns]"
This filtering works fine, however, now I included some extra columns in the DataGridView, which I'd like to filter on, too. Of course, when I feed the manually added columns to the Filter of the BindingSource, this doesn't work out.I've done some research, and was not able to find any way to use the BindingSource's filtering syntax on the DataGridview. I'd like to use this syntax though, as I designed quite a nice UserControl and class around it, to provide smooth, fast and simple filtering capabilities.
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Nov 20, 2009
it seems that every Excel workbook I create in Vb, Excel automatically creates a ghost book with the name Bookn.xls where the n is incremental. After a lot of processing, I could have 20+ blank books open and running in taskmanager!
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May 30, 2012
I am working on a realtime application where the data is addded to a List(of T) all the time. MB per minute
Elements older than X minutes shall be removed from the beginning of the list to free memory.
As far as i can understand will there be an internal (slow) redim when i add each element after i have reach the number defined with the Capasity metod. (I set that quite big from the start, but the data speed is unpredictable so it can be exceed)
What happens each time i remove and element from the beginning of the list , seems like it takes a lot of time, ? new redim ?
What is the most CPU fficient way of removing 1 or many elements from the beginning of such a list?
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Mar 24, 2009
I have a form with a tab control on it. I've coded all of my button clicks, but for some reason when I do an F5, some of the buttons aren't working. If i go into the code I see the code for the onclick, but if I go back to the designer and click on one of the buttons, I get a new onclick section. Will the code for the button break if i move the buttons around the panels?
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Mar 19, 2012
I am trying to do an application where several textboxes and buttons will be added to a groupbox.
for example..
code:
I might have anywhere between 1 and 20 rows of these textboxes and buttons. I can add buttons on from.. but how would i add the textboxes or buttons to the say Procedure for MyButton_Click... Handles MyButton_1.click, MyButton_2.click
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Aug 15, 2009
want to make a custom calendar. For that I made a table of 7 cols and 6 rows and added 42 buttons in it. I added an event handler. I used this file in other form and when I click at the button the event is fired in form2. I understand this is not hte efficient way to add so many buttons. As it is a calendar, so I got to add dates to buttons based on month selected.I am finding that part difficult. For this feature, I think I should add buttons dynamically. But I can't make out how to add buttons to each cell of the table. Later on each buttons text will also change. I have added the code written so far :
Public Partial Class CalendarControl
Inherits System.Web.UI.UserControl
Public mnthNo As Integer
[code].....
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Dec 19, 2010
I am building a program that does inventory control. I have multiple forms connected to same database. One of the forms I have a search function. When I was using the controls at the top of the page, it was working. I added buttons for the controls and now the database wont store anything. I can open the input form and I can add multiple inputs, close the form, open it back up, and nothing left in the database. I have also noticed that my database icon in the data source has a small red X in it. When I click on the icon, it is showing the db as closed. I can refresh it and it opens, until I run the program and it closes.
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May 21, 2009
I'm very new to Visual Basic, and have just installed VB Express 2008 from a Sams book titled, "Teach Yourself Visual Basic 2008 in 24 Hours", by James Foxall. I've managed to make it through most of the book, which was very helpful in getting a quick jump start, but I find that I am still "not quite getting it" yet.
I've written a program that has a "Start" and "Stop" button which are suppose to control the logging of data through a serial port. When I click the Start button, the serial port gets initialized, opened, and then I go into a Do-Loop-Until loop to process the incoming data stream, and that is suppose to stop when the Stop button is pressed. However, I haven't figured out how to implement that.
[Code]...
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Jun 14, 2012
I loaded up VS 2010 to work on a VB.NET project but for some reason the Run/Pause/Stop buttons are missing from the toolbar and I cannot set breakpoints. Only changes from yesterday to my system was this morning Windows was trying to install Visual Studio SP1 updates but all failed.
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Mar 10, 2009
Alright, I have form, with multiple buttons on it. I want it so when I Click on the Button that Says START it will Change to STOP but at the same time Enable all the Disabled Buttons on the Form. ATM I have this.
Dim ctl As Control = Me.GetNextControl(tbStudio, True)
Do Until ctl Is Nothing
If TypeOf ctl Is Button Then
If ctl.Enabled Then
[Code]...
Works Good, but when I add the btnStartStop.Text = "Start" or .Text = "Stop" to the If Statements, it's always getting stuck on "Stop" I also tried a Boolean statement but came out all funky, EVERY OTHER button was Disabled while the OTHERS were Enabled. I feel like a n00b, I've been programing for a bit now, but just got back into it,
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Apr 15, 2012
I am having a problem and that is I have buttons to read text to speech like play pause and stop I have created 4 buttons Play,Pause,Stop,Resume but now I dont want the Resume button, instead when I click on the pause button it should pause the speech and later when I click the same button again I need the speech to be resumed this is what I wrote?
Public SAPI = CreateObject("SAPI.spvoice")
Private Sub startSpeaking_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles startSpeaking.Click
SAPI.speak(RichTextBox1.Text, 3)
[code]....
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Nov 6, 2009
I am actually designing a simple media player. Here are all the buttons I have
1)play
2)pause
3)stop
4)next track
5)previous track
6)fast forward
7)fast rewind
8)repeat playlist
Public Class Form1
Dim myarray(100) As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
WMP.uiMode = "NONE"
[Code] .....
In all of these only play, stop and pause work everything else isn't working. tried lot of codes and even forms nothing works ..
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Mar 3, 2012
I have a piece of software with two tabs, inside each tab there are buttons (the user can add the buttons when they want). when tab1 is full tab2 should start to fill. I currently know how many buttons fit on the screen so I just say something like if buttons > 150 then start to populate tab 2 The problem i have now though is if the resolution is changed then a different amount of buttons can be displayed. so if I put my screen to 1280x720 some buttons are left of. I was thinking of detecting the resolution and then using different cases for different resolutions but this seems very inefficient im wondering if there is a different way?
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Sep 5, 2009
I have this problem for some days now and i did not figure it out yet.When i use 2 buttons one for recording and one to stop recording is just fine, but when i use a timer to stop recording does not stop.
Here`s my First i have a button named start recording which calls the Public Sub record and enables timerRecordStop to TRUE.
[Code]...
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Jun 21, 2010
I have a program that adds controls on the fly to an auto-scroll panel. When the panel is scrolled (viewing the bottom of the panel for example) and a control is added, it looks like it is added assuming the top left corner of the panel is still at 0,0 when in fact it may be 0,500. To see what I am talking about, create an empty "Windows Forms Application" project and insert the below code into it.
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents btnAdd As System.Windows.Forms.Button
Dim ButtonCount As Integer
[code]......
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Jun 10, 2009
i have multiple forms in a project and all have statusbar. there is no way to add textbox on status bar but in my previous thread i got the help to add the text box. i created a function in module so that i call that function from all the forms on load and add the textbox on status bar and also add the event on textchange. the function to be called on event change is in individual form (at present)[code]
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Feb 26, 2009
Alright, so I'm still working on the slot machine. I have three timers all independently going for my three "wheels" of the slot machine.
My issue, is that I'm trying to make a Stop button to stop each timer one at a time, and I'm not understanding why this code isn't working. The logic completely makes sense, and the first "wheel" stops when I click the button, however, it doesnt appear to stop the other two timers.
CODE:
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Apr 20, 2009
I have a MDI WinForms application that can perform several tasks. Each task is running as a backgroundWorker.What is the good approach to control the running threads:check whether the specific thread is running stop specific thread ?For example it shouldn't be possible to run the same task simultaneously.May be I need a separate class where I can store isTaskRunning variable?
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Dec 24, 2009
I have a simple application that use thread pool to read a file and input the data into a listbox. I want to be able to stop threadpool from running after clicking a stop button. How do I stop threadpool? Here is the code for my application below:
Imports System.Threading
Public Class Form1
Private Delegate Sub StringDelegate(ByVal text As String)
[Code]....
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Dec 7, 2009
I created a form and have the variable inputs for 4 motor run statements. Then with a start button the script starts and it is surrounded by a for next statement to loop 10 times. It works fine but if i need to stop the execution of the script with a stop button. I put the stop in a new section but of course does not work to do a motor stop. It just causes the exe to not respond till the loop is complete. Just need to be able to stop the Run1_Click button section.
Edit:I do not mind if it finishes the 4 motor run commands and then stops execution of the loop. So need to figure out a way to trigger a stop from a button on the form to stop the cycle. For the future the loop will be a variable integer input so 10 will not be the standard.
Edit::Does a ' Do ' statement sound like the thing to use? If so how and where would I place that? Have a Stop button on the form and it would stop after the 4th motor run command.
#End Region
Declare Function InitStp Lib "stp.dll" () As Integer
Declare Function RunMotor1 Lib "stp.dll" (ByVal steps As Integer, ByVal interval As Integer, ByVal direction As Integer, ByVal outputs As Integer) As Boolean
[code]....
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Aug 17, 2011
I have two websites "WEBSITE 1" and "WEBSITE 2"...now i want that when someone logs in to "WEBSITE 1" he does not have to log in to "WEBSITE 2" and vice versa...ie when he/she logs in to any one of he websites and opens the other one simultaneously he/she does not have to login to the other one.For eg :- when you are logged in in gmail...you do not have to log in in youtube or orkut or google+
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Apr 12, 2011
I have referred to the following question at: Using foreach loop to iterate through two lists. My question is this, with regards to the chosen answer: Can the o.DoSomething be a comparison? As in:
For Each a in ListA.Concat(ListB)
If(a from ListA=a from ListB) Then
Do Something here
End If
Next
I'm using VB.Net and would like to know how I can do what I have shown here. That would basically be to iterate through a joined list separately/independently.
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Jan 18, 2010
ok im reposting this question cause i got some off track answers last time.I have 3 aspx pages - page1, login and page3. Now when i goto login page from page1, after i login and goto page3 i should be able to open a popup on that submit and the login should change to page3. but if i goto login page directly, the popup should not open and the login will goto page3 as normal design. how can i achieve this?
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Feb 26, 2010
i'm from Turkey. i have a question. can i use vb6 and vb express 2008 simultaneously? my os is win 7 and runs intel q6600 core2 quad, 4 GB ram. i asked becasue i have no idea what will happen when i do this.
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Mar 11, 2010
I have two form the parent form with the menu list and the child form. I want to show the two form simultaneously or the main menu first and then the child form.
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Oct 6, 2011
I have a datatable property called prpParametersTable in a class called clsBatch. I have a procedure that sets a datatable variable called dtP equal to prpParametersTable at the beginning of the procedure. I then add three new columns to dtP.Here is my problem. When I add the three new columns to dtP my original table prpParametersTable also gets those columns added to it, why? I only want to add the three columns to dtP and not prpParametersTable. How can I do that?
Private Function prvfnc_InsertBatchParameters(ByRef cnn As SqlConnection, ByRef trans As SqlTransaction) As String
' set new columns that have BatchID, Insert DateTime, and UserID for the SQLBulkCopy method below
Dim clm As DataColumn
Dim dtP As DataTable = clsBatch.prpParametersTable
[code]....
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