Question Windows Forms Timer

[RW2539]

I used to do a lot of progamming in the dark ages, I know Basic pretty well, and recently began writing in VB.NET. So, I'm far from a novice, but new to this language.

Anyway, I have a prgram in whcih I run a loop until the capslock key is detected to be on. The problem is, the loop blows past the test and I am convinced I am losing keyboard focus somewhere. I read that I might be better off running the loop and creating a timer that checks for the event and, if found, sets a variable to false that will end the loop.

So, I literally clipped the sample code from the help topic in VB 2008 Express and put it in my program and it won't compile. I get this error:
Handles clause requires a WithEvents variable defined in the containing type or one of its base types. I cannot understand from the help system what I need to do.

Alternatively, why would a simple loop cause me to lose the ability to see the keyboard? I don;t change forms, I simply grab a message off a web page and copy it to a textbox. Over and over as the message changes.

I'm all too happy to share the code.

Thx!

RW

 

[jmcilhinney]

It sounds like you've copied a Timer.Tick event handler into your code but you don't have a Timer on your form whose Tick event you can handle. Your event handler probably looks something like this:

Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As EventArgs) [B][U]Handles Timer1.Tick[/U][/B]

The error message is saying that if you don't have a variable named Timer1 that is declared WithEvents then you cannot handle its Tick event. If you add a Timer to your form in the designer it will generate code including a declaration like this:

Private WithEvents Timer1 As System.Windows.Forms.Timer

 

[RW2539]

Answer

Thank you. My problem was not letting the designer do the work and, instead, writing my own codefrom scratch. Your fix worked.
RW