How Do I...Get timer events without message pump?

Timer allows you to raise an event on a specified interval. This sample illustrates how to use a Timer to raise an event every 1000 milliseconds. Run the sample and observe a new "Hello World" message being printed every second. In its simplest form, using a Timer involves:

1. Creating a new instance of Timer:

   Dim aTimer As System.Timers.Timer = New System.Timers.Timer() VB

2. Specifying the event handler:

   AddHandler aTimer.Tick, AddressOf OnTimer VB

3. Specifying how often to raise the event:

   aTimer.Interval = 1000 VB

4. Enabling the component:

   aTimer.Enabled = True VB

5. Handling the event:

   Public Shared Sub OnTimer(ByVal source As Object, ByVal e As EventArgs) Console.WriteLine("Hello World!") End Sub VB

Example

VB Timer.exe [Run Sample] | [View Source]

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