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POWindows mobile threading.timer in unattenededmode
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copied!<p>I have a windows mobile 6.5 program which I want to trigger a call to a web server every ten minutes. But the event doesn't seem to be always being called. I have create a simple program to test when events are being triggered.</p> <p>A threading.timer is set to execute every 10 seconds and then store the time in a string. I am trying to set a requirement for unattended mode so that this timer would continue to execute when the power button on the device is clicked or when the device is idle.</p> <p>When I am clicking the power button on the device the timer stops executing.</p> <pre><code>Imports System.Threading Imports Win32 Public Class Form1 Dim time As String = "" Dim tmrUploadTimerThread As Timer Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load CoreDLL.PowerPolicyNotify(PPNMessage.PPN_UNATTENDEDMODE, -1) tmrUploadTimerThread = New Timer(New TimerCallback(AddressOf Timer_Worker), Nothing, 10000, 10000) End Sub Private Sub Timer_Worker() time = Now & Environment.NewLine & time End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click TextBox1.Text = time End Sub Private Sub Form1_Closed(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Closed CoreDLL.PowerPolicyNotify(PPNMessage.PPN_UNATTENDEDMODE, 0) Me.Dispose() Application.Exit() End Sub </code></pre> <p>End Class</p> <p>I got the class Win32 from <a href="http://www.codeproject.com/Articles/28886/Windows-Mobile-Power-Management" rel="nofollow">Windows Mobile Power Management</a>. Bellow is the code for PowerPolicyNotify:</p> <pre><code>[DllImport("CoreDLL")] public static extern int PowerPolicyNotify( PPNMessage dwMessage, int option // DevicePowerFlags); ); </code></pre>

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