detect if the system has Hibernation enabled, or in the case of Win2k if hibernation is even possible. I already know how to hibernate the computer via the Framework:
Application.SetSuspendState(PowerState.Hibernate, True, True)
but in my program I would like to provide the hibernate option only if the OS A) is new enough to be able to and B) has it enabled in the user's Power Options in the control panel.
This kind of goes along with my Shut Down & Restart thread from a few weeks ago, but one of the things I'm wondering is if it's possible to detect if the system has Hibernation enabled, or in the case of Win2k if hibernation is even possible.I already know how to hibernate the computer via the Framework:Application.SetSuspendState(PowerState.Hibernate, True, True)but in my program I would like to provide the hibernate option only if the OS A) is new enough to be able to and B) has it enabled in the user's Power Options in the control panel. I can't seem to find anything via Google and MSDN that leads me in the right direction.
View 1 RepliesMy app is running in the tray and I want it to give a reminder to the user its there when they resume from a hibernation, sleep, or from being locked. I know how to handle the popup, but I cant find out anywhere how to detect that 'wake' status from those power saving modes.
View 2 RepliesWill that detect whether the integer should be int64 or int32? What about if we run the program twice. Once we use small numbers and latter we'll use big numbers?
Let's look at this for example: vb.net Dim vector1 As List(Of Int64)Dim vector2 As List(Of Int64) vector1.Sort()vector2.Sort(Function(x As Int64, y As Int64) As Int64Return y - x
What about if I do: vb.net vector1.Sort()vector2.Sort(Function(x As Int64, y As Int64) As Int64Return y - x
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I have 2 buttons in my form, one to hibernate the pc, and one to put it to standby. However, when I click standby, the pc hibernates too.I want to disable and re-enable hibernation, but I need to detect whether it is enabled or not, because I don't want to enable it if the user has disabled it.
View 3 RepliesI have a very long running syncronization task that cannot be interrupted by the screen saver or aggressive power saving modes. I want to make a single api call to stop power save mode and then restore it once the task is done.The following code is peaced together from various other posts but it has no effect on XP's power management settings.[code]
View 3 RepliesI really like the coding speed that vb.net provides, but I don't like the possibility to forget to declare variable types, return types of functions, etc. and that is why in each class I use[code]..
Is there a way to define those two options on the project/solution level?
the combo box style 1 has both the drop down option but also a manual entry option. I need to know how to code it so that when you manually enter data, it takes that data and places it in a text message "The shipping charges for "data" is $15" displaying in a text box. Shouldn't be hard but have developed a mind block.
View 4 RepliesI am writing an application that puts a computer in hibernation mode (Application.SetSuspendState). I have noticed that there exists a specific option that needs to be enabled for the machine to hibernate correctly and that is found in Control Panel--> Power Options --> Hibernate Tab (if this option is not checked then the machine goes into stand by mode rather than hibernate) Is there a way to programmatically check the status of the "Enable Hibernation" check box and check/uncheck it?
View 2 Replieswhat does these two code means in vb.net: Option Explicit on Option strict on i think option explicit means the compiler is not going to do any kind of conversion and i need to do all of them by the code;also it becomes case sensitive i.e;
[Code]...
I want my console application to be able to do one function I have when you click one option on the windows context menu, and another function when you click another option.
View 3 Repliesso i have 5 buttons and 5 labels.
when i press button 1 a "1" appears on label1.
now if i press button 1 three times, button 2 one time, button 5 four times, but the last press was wrong so i need to undo. i create a new button named undo, what would the code be for taking away like i said, not just for button5, for every button i set out but the undo button?
How can I get round this error: Option Strict On disallows implicit conversions from
[Code]...
1. I have read that keeping Option strict on and Option infer off is good practice and will insure your code is tight and properly written. I would like input regarding this, pro's and con's from those who are in the know.
2. Having said that, I have set Option strict on and Option infer off in an existing program I wrote (that was working perfectly mind you) with them off and on respectively. I went through and cleaned up all the errors on the 'need AS' and casting of variables, but one is leaving me a bit put out.[code]
I have also read where using My.Computer.System.Directory.GetFiles() instead of System.IO.Directory.GetFiles() is probably not a good thing, but when I change to this I get no error, but also no dataI am thinking I should stay with the strict on and infer off but am really slogging through getting this code correct.Running Win7 on Dual Quad Core XEON Intel Extreme with 8Gb RAM.
I am writing a text editor program and I have written the new, open, save as, exit menu items but I am struggling with writing the save option.Now I have created the menu itself (well vb did, I just used insert standard items) but how do I code up the save menu option so that it updates the current document or if the documnt has not yet been saved bring up the save file dialog.Here is the code I have so far
Public Class Main
Private Sub NewToolStripButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NewToolStripButton.Click, NewToolStripMenuItem.Click[code]....
I know I have some finishing touches such as messages and error handling and stuff but at the moment I want to get all the basics working,I think the save menu option is all I am struggling with at the moment.
Is it possible to create a standard installer with VS 2008 VB? What i'm looking for is an install similar to Windows Installer - one where the user can choose installation location, options, etc. instead of the ClickOnce deployment method of burying the app in the User folder in an unknown location?
View 1 RepliesIn VB6 I would say "optReason.Value = true"
In VS2008 would I say "rbReason.Focus()"
And accomplish the same thing?
I want a msgbox with some text, and a Yes and No option..Why wont this code work?
MsgBoxStyle.YesNo ("TEXT")
i have 6 checkboxes in an application what i need is that: if i checked checkbox1 then the other checkboxes are unchecked by that the user can check just 1 checkbox so how can i do that
View 11 RepliesI want to be able to use like a dropper to select a color that would display a html code output of the specified color picked. It would show the preview of the colors your scrolling through in the oval and a preview of what the color would look on text on a black background in the html section as html code. Unfortunantly I have no idea what the hell I'm doing, lol. I have been able to program simple programs that insert text in a text box pretty well including multiple colors of the text. But this is what I'm working with
Basically this is the whole form, theres obviously going to be a lot more which I'll try and figure out on my own. But this is basically whats going on with it. the color chooser button with have the dropper icon on it when I get the chance to add it.
I am pretty familiar with how to use the webbrowser control. I know how to autofill forms using the getelementbyid code but I'm having a problem selecting from drop down menus.
Here is the html source
<select name="birthday_mon">
<option value="0">---</option>
<option value="1">January</option>
[Code].....
I am trying to set up an app that has a menu and have each option run on a different thread. When I set up 2 thread to run I get the following error: Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThread Attribute marked on it. This exception is only raised if a debugger is attached to the process.From what I have researched, it says to make sure the openfile dialog function should be used with the main thread only. Since I have <STAThread()> added above the main I'm not sure how else to handle this. The main thread needs to be listening for the menu options and if I change it around it runs that option and the other threads hang. [code]
View 4 Repliescode]I tried to use the IS operator, it does not work if the check box is checked.I also tried changing .Value to .State without any success. It is last error I have left since I switched Strict Option On.
View 10 Repliesin vb 2008 express this option is available under application properties. does anyone know what it does? there is also a windows authentication option. what is the difference between these two?
View 1 RepliesI'm working in ASP.NET ( beginner ) and I tried to make update query using the code below. I try the same code to get date from database and it work fine, but only don't work with update query.
Note: I use LINQ
Dim updateCust = (From cust In db.Customers
Where cust.CustomerID = "JILLF").ToList()(0)
updateCust.ContactName = "Jill Shrader"
[code]....
I am trying now Visual Studio 2008 beside VB6. As I want to create an .exe file but can't see the option for creating exe.
View 6 RepliesWhat do you feel are best practices for the use of Option Infer in your projects? In Visual Studio 2008, Option Infer is a directive that allows the compiler to infer the datatype of a declared variable by looking at what is assigned to it. This is a key feature in VS2008 and is used extensively with LINQ statements and queries. However, turning on Option Infer may create pitfalls for future maintenance programmers.
View 5 RepliesI've built a contact book in vb08. I've created the database in ms access 2007. I connect in and show the data and drag it to my form it works 100%. I can add and delete entries everything but how do i add a search by surname option to the form?
View 1 RepliesWhy is it so important to turn option strict on? I admit I am not a professional programmer, but I have written a great number of useful applications...I am fairly well (although self) educated in object oriented programming... I even write programs for my business...I always have felt that I am missing some background theory that is probably really important (I have a grad degree in math, no comp sci)...I have never turned on Option Strict for any project I have ever written, and I guess I just want to know, theoretically why is it important?
View 10 RepliesWith option strict on i have errors addition. I want how to make the addition of:
1. all the odd numbers on a collection of 5 textboxes and see result to label1
2. all the the even numbers to label2
3.all numbers smaller than number 5 to label 3
4. all numbers greater than number 5 to label 4