[VB.NET] Run a timer while a key is depressed - Tilted Forum Project Discussion Community

JStrider · 09-27-2004, 09:45 PM

ok i want to have a timer running while a user has a key depressed and then i want it to stop when the user lets go... havnt gotten to keyboard stuff like this in my class yet... im just messing around with it on my own...

the pseudo code goes like this...

if "w" key is pushed then
timer1.enabled = True
else timer1.enabled = false
endif

I just have no idea how to tell when a user is pushing the key in...

Boadah2 · 09-27-2004, 11:24 PM

I'm not a big VB.NET guy, I program VB6 by day to earn the bread money, but as far as .NET goes, C# is where I'm at so I'll try to help. I think this'll work.

After your form generated code, you'd want to do something like this:

Code:

  
  'Make yourself a timer that has events.
  Dim WithEvents m_Timer As Timer

  'On your form key down event, enable the timer.
  Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
    m_Timer.Enabled = True
  End Sub

  'On your form key up event, disable the timer.
  Private Sub Form1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyUp
    m_Timer.Enabled = False
  End Sub

  'Timer event.
  Private Sub m_Timer_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles m_Timer.Tick

  End Sub

  'Set the timer interval on the form load
  Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
    m_Timer.Interval = 100
  End Sub

Hope this helps

JStrider · 09-28-2004, 05:50 AM

yah... im just using VB.NET cuz thats what im being taught in class...

and the code works... for any key being pushed on the keyboard... how can i make it so the timer only runs when only the "w" key is depressed?

Boadah2 · 09-28-2004, 07:37 AM

Quote:

Originally Posted by JStrider

yah... im just using VB.NET cuz thats what im being taught in class...

and the code works... for any key being pushed on the keyboard... how can i make it so the timer only runs when only the "w" key is depressed?

Code:

  'On your form key down event, enable the timer.
  Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
    If e.KeyCode = Keys.W Then
      m_Timer.Enabled = True
    End If
  End Sub

JStrider · 09-28-2004, 07:56 AM

wooo awesome!

09-27-2004, 09:45 PM	#1 (permalink)
JStrider Poo-tee-weet? Location: The Woodlands, TX	[VB.NET] Run a timer while a key is depressed ok i want to have a timer running while a user has a key depressed and then i want it to stop when the user lets go... havnt gotten to keyboard stuff like this in my class yet... im just messing around with it on my own... the pseudo code goes like this... if "w" key is pushed then timer1.enabled = True else timer1.enabled = false endif I just have no idea how to tell when a user is pushing the key in... __________________ -=JStrider=- ~Clatto Verata Nicto

09-28-2004, 05:50 AM	#3 (permalink)
JStrider Poo-tee-weet? Location: The Woodlands, TX	yah... im just using VB.NET cuz thats what im being taught in class... and the code works... for any key being pushed on the keyboard... how can i make it so the timer only runs when only the "w" key is depressed? __________________ -=JStrider=- ~Clatto Verata Nicto

09-28-2004, 07:56 AM	#5 (permalink)
JStrider Poo-tee-weet? Location: The Woodlands, TX	wooo awesome! __________________ -=JStrider=- ~Clatto Verata Nicto