I'm trying to use a timer to play a slideshow.
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
'playlist is a flowlayoutpanel
'pictures is also a flowlayoutpanel
'picturecheckbox is a custom control with a picturebox and a checkbox
'list is a general list(of string)
[Code] .....
I need to design the presentation in vb.net using picture box and timer.
Need to display the images on regular time basis.
I'm using Bitmap to show picture box like slideshow using Timer. For each timer interval, I've to go for new instance of Bitmap, there System memory increases to 1MB, How to resolve this, 'BG is picture box
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tic Dim img As Bitmap
img = New Bitmap(System.Drawing.Bitmap.FromFile(FileIO.FileSystem.GetFiles
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I have a list of song format .wav. I want to play the first song until it finish after that the second song will be play .. etc. The problem I used timer to play song and I put the time for each song 1 minute all song played together. I want to arrange that when the first song played all song hold until the first song finish then the second song played the third song hold until all other song finish...etc.
View 20 RepliesI have a form that i call like so:
call frmSlideShow.showWhat("1,4,8,9,11,22")
Each of the numbers represents a different image slide (slide1.png, slide4.png, etc..). The problem i am having is trying to create a "previous" and "next" button to flip through them all. Trying to figure out what number the user is on and going from there and seeing what numbers are still left from the list above that was sent, etc.
here is the code..
Public Sub showWhat(ByVal theNumbers As String)
Dim theNums As String() = theNumbers.Split(New Char() {","c})
Dim theCurNum As String
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Started college and way behind already dont know where to start with the code to run a picture slideshow.
View 5 RepliesI have a little problem with an application I am developing. My application is supposed to save a powerpoint slideshow, which I have finish coding. The code is as follows,
Dim dal As New CreateDAL
Dim bll As New createBLL
Dim searchQuery As String
[Code]......
However, upon click the button which calls these codes, the powerpoint slideshow that is saved does not end when it is in slideshow mode. For eg, there is 5 slides, after reaching the 5th slide, it returns back to the 1st slide and repeats over and over again. I'll have to press the ESC key to end the slide show. Is there anyway to prevent this? Perhaps I'm missing a statement to make the ending slide the last side?
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.
I have a ppt file and i want to show the slide in the form that the user just see the slid in the form no in power point application ?
View 3 RepliesI am trying to build a slideshow app that will display 6 pictures at a time from a specified folder. I put 6 pictureboxes in a TableLayoutPanel and have a timer control call the Ahead1 subroutine to load a new picture into the last box after all of the other pictures "move up one box".The problem is that every the timer calls the Ahead1, the program uses about 30MB of RAM and the program eventually ends with an OutOfMemory Error. (Choosing the Picture Folder - only called once)
Private Sub ChooseDirectoryToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ChooseDirectoryToolStripMenuItem.Click
FolderBrowserDialog1.ShowDialog()
[code]....
I want to the song can auto start one by one when import the song to list box. But it doesn't work that I need to select one by one. Besides, the program can repeat all the song or individual song when checkbox enable.
If AxWindowsMediaPlayer1.playState = WMPLib.WMPPlayState.wmppsMediaEnded Then
If playlistbox.SelectedIndex < playlistbox.Items.Count - 1 Then
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Im trying to open media player (full screen) and play a movie. When i create the file path like so: Dim MoviePathVTS As String = String.Concat("""" + tempMoviePath, " \VIDEO_TS\VTS_01_1.VOB" + """")
It wont play the file but if i do it like this: Dim video1 = """F:\Movies\DvD\Angels and Deamons\VIDEO_TS\VTS_01_1.VOB"""
It plays fine? the file paths are the same including the extra "" but it just refuses to play. I need the top one because i have many movies in a treeview.
Heres my code
Private Sub watchNow_Click(ByVal sender As Object, ByVal e As EventArgs)
'get the position of the selected node
Dim i = movieTreeView.SelectedNode.Index
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How can you make a play button play/stop toggle? Currently my button plays a file in WMP but when I click it again, it just restarts the file. I would like it to toggle on and off, play and stop, not play and pause.
View 8 RepliesWhat I need to do to make this code work for hours as well?[code]...
View 6 RepliesI need an accurate timer to interface a Windows application to a piece of lab equipment.I used System.Timers.Timer() to create a timer that ticks every 10 msec, but this clock runs slow. For example 1000 ticks with an interval of 10 msec should take 10 wall-clock seconds, but it actually takes more like 20 wall-clock sec (on my PC). I am guessing this is because System.Timers.Timer() is an interval timer that is reset every time it elapses. Since it will always take some time between when the timer elapses and when it is reset (to another 10msec) the clock will run slow. This probably fine if the interval is large (seconds or minutes) but unacceptable for very short intervals.Is there a function on Windows that will trigger a procedure every time the system clock crosses a 10 msec (or whatever) boundary?
UPDATE: System.Timers.Timer() is extremely inaccurate for small intervals.I wrote a simple program that counted 10 seconds several ways:
Interval=1, Count=10000, Run time = 160 sec, msec per interval=16
Interval=10, Count=1000, Run time = 16 sec, msec per interval=15
Interval=100, Count=100, Run time = 11 sec, msec per interval=110
Interval=1000, Count=10, Run time = 10 sec, msec per interval=1000
It seems like System.Timers.Timer() cannot tick faster that about 15 msec, regardless of the interval setting.Note that none of these tests seemed to use any measurable CPU time, so the limit is not the CPU, just a .net limitation (bug?)For now I think I can live with an inaccurate timer that triggers a routine every 15 msec or so and the routine gets an accurate system time. Kinda strange, but...I also found a shareware product ZylTimer.NET that claims to be a much more accurate .net timer (resolution of 1-2 msec). This may be what I need. If there is one product there are likely others.
I have a timer on a page in ASP.NET.
After a certain period of time elapses, I want to disable the timer.
I want to put a static variable in the timers tick event that will track how many seconds have elapsed.
My question is, will this work?
If user X and Y are viewing the page will they both have separate local static variables?
What is the best method of shutting down an ASP.NET timer after a certain elapsed time?
I have a windows application that need to process som quite time consuming jobs. In my first try i did all processing under
the form thread. The result was bad response and update of the form due to the heavy jobs.To get around the problem with bad response from the form i created a new class "processing" where i put all the data processing. Then i instanciated a background worker where i in the "doWork" sub created a new instance of "processing".The "processing" class creates a timer from system.timer, and the timer drives the processing.On the Timer event Elapsed the timer starts a new thread from the thread pool.
My problem is now when i want to asynchronously close the background worker (with the corresponding function call what ever it is called ...) there is still a timer thread out there that causes exceptions for me.
1. How can i close my background worker and at the same time have the timer to be stopped?
2. Is there a way to synchronize the timer event so that the timer executes from the background worker thread?
3. Is there a better approach for me to adapt?
I want to create an array of timer in vb.net. My problem is that how will i raise the tick event for a particular timer, say mytimer(x).tick and inside the tick event there is also a button, say mybutton(x) which changes location every interval. for example:
public class blah
dim mybuttons(20) as button
dim mytimer(20) as timer
private sub form_load(....) handles me.load
for x as integer = 0 to 20
[Code]...
i dont know what to do next, all i want is to pass the button mybuttons(x) to mytimer(x) tick event, in which their index number are the same. i want to create one timer per button. how to do that? please help me and post example codes. i've researched the net but i cant understand passing variables, addhandlers, etc. i'm just new to programming object oriented.
How can I incorporate the timer so once a page loads the timer activates, waits a few seconds then I tell my program what to do next.I tried this code but it didnt work:
Timer1.Interval = 5000
Timer1.Enabled = True
Timer1.Start()
[code]....
Everything is nice and dandy on my pc, then I compile, move it to its final destination and I doesn't work! At first I thought it was a OS problem, but both machines has win7, I then thought it was a compilation problem, installed visual studio on the other pc, recompiled still with no luck, then it dawned on me, may it be a problem of 32bit vs 64bit?The piece of code is this:[code]....
By the way is not a problem of mouse_event, is the timer that doesn't work
I have a timer in vb.net and it's interval is 1000ms ,. i have placed in it's timer_tick event a code that will print screen the screen and save it to a database.The problem is when i click outside of the form, or loosing the focus of the mouse to the form containing that timer/printscreen, the timer stops. As a result the printscreen also stops.here are it's properties:
generate member = true
interval = 1000
modifiers = friend
I recently switched my code from using the windows.forms.timer to the systems.timer.timer and it has resulted in a multithreading error. I'm using the timer to trigger just one event so multithreading shouldn't be an issue. To give more detail I have implemented the timer at follows:
At the top of the class I have: Private Shared timr1sec As System.Timers.Timer
When the program loads (Private Sub Test_load):
timr1sec = New System.Timers.Timer(1000)
AddHandler timr1sec.Elapsed, AddressOf OnTimedEvent
In OnTimedEvent I call several subroutines, and write some data to the screen using a ListView object.VisualExpress throws the multithreading error on the last line of this code, which is in OnTimedEvent
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I have a routine which is controlled by a timer. It works perfectly. The problem is that now, I need to run this routine several times, so I need to start differents threads so that my program doesn't get hung up. I've been trying to start my timer inside a thread, but it doesn't work!
View 18 RepliesVB6 create object of timer instead of timer control
View 5 RepliesIs it possible to use a timer to delay code? For example:
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I already created a button "enjoy button" that i want to move in a form when the "timer start button" is clicked.how do link the timer to the"timer start button" and make it move? this is what i tried so far..then am blank first
Quote:
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Me.xTimer.Enabled = False
xTimer.Interval = 10[code].........
In a vb 2010 project, I have 2 win forms: Form1 and Form2.
In the Form1 class there is a server-based timer: when the "elapsed event" fires, then I update the text of a Label1 on the Form2. A very simple code:
Quick question - if I have a timer set to 5000 (5 seconds) and the code in the timer takes longer than 5 seconds to run because of sql stuff, will the timer wait until the code is done till it fires again?
View 3 RepliesI'm wondering what exactly is the difference System.Timers.Timer and System.Windows.Forms.Timer???
View 4 RepliesMy timer pauses (sort of the display portion (label) of the timer indeed pauses, however when the timer is resumed it starts again, but not at the point where it was disabled. As an example. If I pause the timer at 10:00 and wait ten seconds when I hit resume it starts at 09:50, where it should resume at 10:00 or 09:59
Module Helper
Public SessionTime As String
Public Pause As Boolean = False[code].....
