VS 2010 : Make A Little App That Displays The Battery Life Of A Notebook - Timer Not Refreshing?
Nov 19, 2011
I'm trying to make a little app that displays the battery life of a notebook, and also whether it is charging or not.I've got it displaying the battery percentage and if it is running via the cable or battery alone.My problem is that I have a timer constantly ticking to grab the latest information as to whether it is still chraging, what the battery % is like, however for some reason when it first runs it get's the info but then that's it, it won't refresh the info in real time. I'm confused because the battery can deplete but the program only displays what info it got when it was first ran but if I unplug the power cord or plug it back in it refreshes that info straight away. My code is:
Public Class Form1
Dim psBattery As PowerStatus = SystemInformation.PowerStatus
Dim perFull As Single = psBattery.BatteryLifePercent
Dim GraphicPercent As VariantType
[code]....
The bit I've highlighted in red in my code won't work either, basically I've shaped the two labels to look like a crude battery shape and label2's function is to represent the nobly bit at the top of the battery and I wan't that to change to Lime when the battery is 100%.why it won't refresh the graphical output to the screen?
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Apr 27, 2012
In my VB.Net project with framework 2.0, i need to get the current buttery life of laptop or notebook by coding.
It is possible to get the current battery status information?
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Mar 2, 2010
I'm trying to get the battery life meter in percent, so it will be shown on a progressbar when you're on a portable computer.
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Mar 16, 2010
Trying to find a code to display ' BatteryLifePercent' by itself on the screen of a gps unit running Windows CE Core 5.0. I have absolutely no experience in programming. Just piecing together things I find and slowly learning to make a working program. So if this is possible, could someone post a code for it? Ideally I'd want just the percentage showing on the main page with ability to size font and position somewhere on the screen. [Code]
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Jan 28, 2011
Searching about kernel32.dll and battery functions in it, I came across some interesting
Public BatteryLifeTime As System.UInt32
The full declaration is:
Private Declare Auto Function GetSystemPowerStatus Lib "kernel32.dll" ( _
ByRef lpSystemPowerStatus As SYSTEM_POWER_STATUS) _
As Integer
Private Structure SYSTEM_POWER_STATUS
Public BatteryLifeTime As System.UInt32
What I don't understand is, what measurement do the "BatteryLifeTime As System.UInt32" is in? I mean, is the Battery life Time in seconds or hours.. Or something else, so how can I convert it to something I can use..
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Mar 2, 2010
I have two "Game of Life" programs. One uses a list of points that represent the live cells, and the other uses a fixed-size grid. The one using the list of points can zoom in and out, is much more elegant in coding, and has an unlimited size grid. However, it needs to search for points in the list, and the more points in the list, the more time it takes
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Apr 30, 2010
I need a code that will make a progress bars value equal the battery level. And have label equal the batterys time left?
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Jan 22, 2011
I've googled and binged my browser to an inch of it's life, but i'm still no nearer to an answer for this, so I'd be grateful for some advice. Mainly with the syntax, but knowing me the whole concept is wrong!I have a textbox. When user enters a string and presses enter, I want the following to happen.
I'm struggling with 3 and 4 and 7
1. Check the string is not more than 13 characters, if so trim the last characters off to make 13
2. Find if the first character of the string is a digit or a letter
3. Convert the string into an array of INT
[Code]...
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May 26, 2010
I am working on a small program to teach myself how to use timers, and I would like to know if there is a way to make the timer control faster.I set the Interval property to 1 and it is to slow for what I am trying to do.(All I am trying to do is loop a button left to right, right to leftand so on in a Panel)
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Dec 3, 2010
I am trying to make a timer, inside of a class, tick, by calling it from a backgroundworker. It never ticks (the Tick event is never raised), but the Timer shows as Enabled (with Interval set to 1).
Here is the simplified
Class1.vb
vb.net
Public Class Class1
[Code]....
If I move the code inside the Thread1_DoWork procedure into the Button1_Click procedure, the code works fine (by bypassing the backgroundworker). But, when it is called inside of the backgroundworker, it doesn't work at all.
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Jun 8, 2011
I have developed a program which continuously draws a circle using a timer. Now every time the circle gets displays it flickers and which is because i have used me.refresh. Is there any other way to avoid this flickering.
Here is my code
Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As EventArgs) Handles Timer1.Tick
Me.sweepAngle += 1
If Me.sweepAngle = 360 Then
[CODE]....
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Jul 4, 2011
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]....
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Apr 26, 2012
My application runs perfectly on a desktop PC running Win XP. When I install onto a Dell notebook running Win7, the controls are on top of each other and in the wrong places. The resolution is set to 1024 x 768 pixels on both machines.Also how can I ensure that the controls stretch to fill the screen regardless of the selected resolution?
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Mar 14, 2011
I downloaded VB because I was instructed to do so in order to be able to convert powerpoint files to smart notebook files.unfortunately, this does not seem to do the trick.
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Jan 2, 2009
Does anybody know how to make an OpenFileDialog where the file displays in a textbox, BUT, can only show the file, not the directories(eg. "Song.mp3" Not "C:\Files\Song.mp3")I've got the code for the OpenFileDialog
If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then TextBox9.Text = OpenFileDialog1.FileName End If And I've added the OpenFileDialog. I just don't know how to display the file without directories.
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Mar 15, 2009
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].........
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Jan 8, 2012
It uses a Drawmap() sub with map data to create the map on the game load, but I can't seem to get it to refresh, and then re-draw the map based on player location. For example, if the player walks into a door, then it refreshes the map to show them in a building. Any advice on this? Code below:
Imports System.Drawing
Imports System.Windows.Forms
Public Class Form1
[code].....
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Oct 15, 2010
I am in need of a method to refresh a webbrowser object's IP address. Until now, I've just change the value in the Registry. However, the webbrowser only gets the IP when it is first instantiated (when it first navigates to a web page). So, it will not update every time I change the registry. I know there is a way to simply change the IP of the webbrowser itself, so that it will update the IP every time the command is run in VB6, however I have no idea how to do this in VB.NET.
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Apr 23, 2010
I'm trying to make a calculator that adds from two text boxes and displays the answer in another box, but It gives an error when someone enters a character. What can I do to display a string error message in the third box if a letter is entered in one of the first two boxes instead of a number?
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Jul 29, 2010
i want to make a program that randomly chooses a roller coaster and displays it. I want a hidden textbox1 with rollercoaster names (line by line) and then i want a user to click a button and it will randomly show the name of a rollercoaster in textbox2.
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Dec 25, 2011
I've been wondering, how would you make a vBulletin system that checks what users are online and displays them?
I already know how to make a login system, but can't figure this out.
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Jun 11, 2011
I'm trying to make a Application which displays Server Information from Team Fortress 2, Garry's Mod and other Valve Software Games.
how I can display the server information like name, players, server IP and other information?
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Mar 5, 2011
the Datagridview is included in first tabpage. first tabpage is the search form and the second tabpage is the record detail view. user is switching and working between those two continuously.
The problem is that everytime user selects the tabpage1 the datagridview repaints itself. there is about 6000 rows in datagridview so it takes about 2-3 sec to paint itself. I know the delay is normal and can't avoid that. but it affects the tabpage selection. tabpage1 isn't selected completely until the Datagridview1 finishes it job. in this time the tabpage1 and tabpage2 gets combined and confused.
is there a way to put datagridview processing in backgroundworker or something that doesn't affect main UI ?
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May 29, 2011
I'm new to VB programming and I'm trying to develop a program where you browse and select a picture, then it opens in a Picturebox. Afterwards you can choose to open that same picture in paint. My question is, after opening it in paint, making changes to it and saving the picture, how can I make it refresh automatically on the Picturebox with the new changes ? The code I'm using to open my image in paint is the following :
[Code]...
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Jan 15, 2011
i'm an old VB6 programmer that has just starting dabbling in VB.NET 2010 and my first project is a Usercontrol Button project and i'm running into some trouble with refreshing the usercontrol on events.
For example when you mousedown on the usercontrol i want it to act as if the button is being pressed in, to do this i make the caption move 2 pixels down and to the left. And then reverse this when the usercontrol mouseup is triggered.I think my code is correct but i'm not 100% sure what i'm doing with me.refresh and the usercontrol_paint events.
[Code]...
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Mar 31, 2011
My HP dv6 - 1030US notebook has 4 gb of ram, and a Fujitsu MHZ2320BH G2 hard rive with 166 GB. free. running vista 64 SP2 and all current kb's installed. My problem is trying to test Vb 10 express with this unit. I am an ex vb 6.0 guy(beginner level) and still put small # of apps together for my remodeling company.
[Code]...
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Dec 14, 2010
Basically I have 10 .png images.They contain a walk cycle I need to make some kind of loop inside a timer to make them change.
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May 12, 2012
how I can control the tool tip popup or make calls to the text that displays based on a integer value. I'm wanting it to display a text based on a interger value inside an if statment for a picture box. So if the ingteger = 1 then tooltip.text = "" else tooltip.text = "" but that is not the correct syntax.
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Apr 5, 2011
so I am a little confused. I am trying to refresh my datagrid when I have either add, deleted or edit a row via another form. I have it so my main form shows the datagridview, I have bound my controls to the database and I see all rows, no problem. I also have it setup to double click a row and it brings it up in another form to edit that record. This works. but it doesn't refresh the datagrid when saved. I am trying to follow this thread, specifically this post Refresh Datagridview - Post 2 Here is how I am loading the datagridview in main form
[Code]...
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Apr 28, 2010
So basically I created Dim gr As System.Drawing.Graphics on my picturebox and I am drawing on it.
Each time I cover my window with anything or move it away from the screen whatever was covered/invisible becomes missing.
As I understand I can do:
CODE:
But I just can't figure out when should I call restore().
Tried on:
CODE:
When should I restore?
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