Battery Life Time - Measurement In Seconds Or Hours
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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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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May 29, 2012
How can use numericUpDown to set the Time (Hours : minutes : seconds).I want to use one numericUpDown.
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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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Sep 1, 2009
I am writing a program and have run into an issue. The program requires a conversion of time (e.g. hours,minutes,seconds) to a hexadecimal value of no more than 4 bytes (e.g. FFFF). I have no idea how this is done. Can anyone point me to a tutorial or give a quick explanation. Sample code would be great as well.
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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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Jun 30, 2011
I want to convert seconds such as 254565443 seconds to hours, minutes, and seconds and thought if I could remove the decimal and the numbers behind it and not change the number in front of the decimal then it would work.
dim seconds = 254565443
dim Hour
dim minute
[Code]....
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Jun 25, 2010
This is my function to goto a specific time in a movie or music, ... check it out..
'GOTO TIME IN MOVIE, or SONG.
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
[Code]....
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Mar 2, 2010
[code]....
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May 24, 2012
This is what I have so far.
[code]...
The first part (Label 1 + Timer 1) works fine and it counts seconds but I want it to count minutes and hours too.
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Aug 24, 2009
im using ms visual studio 2005- vb.net (im a new beginner too)how can i convert decimal result into hour,minutes,seconds? i have degrees result --> i already convert to decimal --> now i need to convert the decimal into hours.i use this formula-degree into decimal (just a notes-im try use calculator)[code]
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Oct 21, 2010
I have three sets of labels, lbl_seconds, lbl_minutes and lbl_hours. These labels have the default value of 00:00 and I want the timer to change that for each label. I have googled this but I cannot seem to find any good info on it. Do I need three separate timers? I have also noticed that the timers have their own tick event handler. I guess it's in this that I need to change the value of the label. But I cannot figure out how to do just that.
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Jan 3, 2010
I have 4 textboxes Hours, Minutes,Seconds,Milliseconds. When textboxes values are set the count down begins. So far everything works except the milliseconds
Timer1.Tick
Timer1.interval = 100
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim Vals3(3)
[code]....
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Aug 4, 2011
All I'm trying to do is get some VB.net code that works in SSRS 2005 to display 123465 as 34:17:45.This is what I've tried so far:
Public Shared Function secondsToString(seconds As int64) As String
Dim myTS As New TimeSpan(seconds * 10000000)
If seconds > 0 then
[code].....
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Feb 10, 2010
I'm making a Library type app which needs to scan the whole computer when it is run for the first time. Not again ever. How can I accomplish it?I'll be using SQL database to store data. So, I can easily make a table there and store a flag and check it on first run, but is there any other way? Any native support for this in VB.NET?
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Oct 20, 2010
I have made a new form on vb 2010. I need a small box which updates itself automatically to show the amount of years,months,days,hours,minutes and seconds from the 25/6/09. How would i do this in visual basic 2010?
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Feb 10, 2012
I have a program that reads a file with Pacific Daylight Time, I want users to see the time and date in their local environment.
At present I have in Australia a time difference of 18 hours, so I have a list box with -24 to +24 and currently set at 18, my code is elementary as long as I have moved past day one of the month it suits me personally, but I want to distribute my app, so I need something better.
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Dec 20, 2010
I am trying to create what I am sure is a simple program to add hours to convert UTC time. I want to type in a UTC time and have it convert for every state in Australia. [Code] Now that works fine however when the conversion goes past "midnight" it then shows the date and time. I have tried about 50 different things but cannot get it to remove the date when the converted time passes midnight. [Code] The string was not recognized as a valid DateTime. There is an unknown word starting at index 18.
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Aug 2, 2010
What I need to do to make this code work for hours as well?[code]...
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Nov 17, 2009
can anyby help me to add 4 hours to the following date time value [code]
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Sep 6, 2007
I want to know how to sum time like
Case 1
If I have MaskedTextBox included 11:00 am and I have onther MaskedTextBox included 1:30 pm. How I get result be 2:30 hours ????
Case 2
If I have ListBox Included 5:01 , 4:30 , 6:10 , 3:20
5:01
4:30
6:10
3:20
Sum Result
H 18: M 61
Convert To Hours
H 19 : M 01
How to Do this Operation with Code VBnet 2005?
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Aug 28, 2009
I'm currently using this code to get the time span between the two hours.[code]
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Sep 7, 2008
In Microsoft Access I use: Hours(time) minute(time) function to get current time hour and minute. I then use loop to add to the minutes until it ends in a 5 or 0 to round it up to the next 5 minutes. e.g. 13:43 rounded up to 13:45 I use IF statement to make sure the minute does not exceed 60 to start the hour. I want to use that time to add hours or minutes to easier e.g. add 15minutes, add 1 hour ect.
[Code]...
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Sep 26, 2010
In some text boxes I enter times like "08:00 16:00" then another textbox next to it will display 8 hours then a label at the bottom calculates the total overall hours. There are a total of 7 textboxes for times entered and like the example above and another 7 for the calculation of that days hours worked. My problem is when I enter "08:00 16:30" the total hours in that text box would be displayed "8.5 hours". I need to tweak this so it is displayed 8 1/2 hours. My second issue is that the label that displays the overall hours only calculates if I enter times like "08:00 16:00" if i entered "08:00 16:30" it would not calculate
Here is my code:
vb
Private Sub txtMondatTimeKeeping_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtMondayTimeKeeping.TextChanged, _
txtTuesdaysTimeKeeping.TextChanged, txtWednesdaysTimeKeeping.TextChanged, txtThursdaysTimeKeeping.TextChanged, txtFridayTimeKeeping.TextChanged, _
txtSaturdaysTimeKeeping.TextChanged, txtSundaysTimeKeeping.TextChanged
CalculateHours()
[Code] .....
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Nov 21, 2010
If i have textbox1 which display server date as 27-Nov-2010 Textbox2 will display time as 08:00:00 AM..i want if the departure of the plane is Date 27-Nov-2010 and Time 08:00:00 AM then if he/she wants to cancel ticket then it can cancel their ticket till Date 27-Nov-2010 and Time 04:00:00 AM.. Any Body can cancel their ticket before 4 hour of departure date/time..I want cancel plane ticket before 4 hours of departure time if dep time is 08:00:00 AM then Passengers can cancel ticket till 04:00:00 AM ??
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Jul 17, 2010
I wish to display a greeting to the user when they start an application. It's very simple "Good Morning John" or "Good Afternoon John" or "Good Evening John" depending on the time of day. How do create a time variable where it's based on 24 and not 12?
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Feb 9, 2012
So i know this is more Math related but it would make life so much easier. What i want to do is enter 2 times into 2 text boxes and then subtract them from eachother to find out the hours inbetween as a decimal.
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Nov 22, 2010
I have got the following code for if in textbox1 the would be appear as 10:10:00 AM and in textbox2 the time will appear as in 4 hours time slots automatically as 06:10:01 AM ..if the textbox2 time will be 06:10:01 AM then MSg box will appear that "You can not registered to this site because the 4 hours time slot will be over " [code]Remember in textbox1 the time would be any .....and textbox2 will auto generate time according to textbox1 to maintain 4 hours time slots between textbox1 and textbox2
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Oct 11, 2011
I was wondering if it's possible to add seconds to a clock in vb.net. I mean lt's say I have a label and I assign it to DateTime.Now(), how would I show/display the time with the seconds "ticking"?
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