C# Signature:
[DllImport("coredll.dll", SetLastError=true)]
static extern int SetSystemPowerState(string psState, int StateFlags, int Options);
VB Signature:
Declare Function SetSystemPowerState Lib "Coredll" ( _
ByVal psState As String, _
ByVal StateFlags As Integer, _
ByVal Options As Integer) As Integer
User-Defined Types:
None.
Alternative Managed API:
Do you know one? Please contribute it!
Notes:
May be more effective at forcing the device off than holding it on.
Tips & Tricks:
Please add some!
Sample Code (VB):
Const POWER_STATE_ON As Integer = &H10000
Const POWER_STATE_OFF As Integer = &H20000
Const POWER_STATE_SUSPEND As Integer = &H200000
Const POWER_FORCE As Integer = 4096
Const POWER_STATE_RESET as Integer = 0x800000 'this wil make the device soft reset! :)
Public Sub ForcePower()
SetSystemPowerState(Nothing, POWER_STATE_ON, POWER_FORCE)
End Sub
Public Sub SoftReset()
SetSystemPowerState(Nothing, POWER_STATE_RESET, POWER_FORCE)
End Sub
Sample Code (C#):
const int POWER_STATE_ON = 0x00010000;
const int POWER_STATE_OFF = 0x00020000;
const int POWER_STATE_SUSPEND = 0x00200000;
const int POWER_FORCE As Integer = 4096;
const int POWER_STATE_RESET = 0x00800000;
public int ForcePower()
{
retrun SetSystemPowerState(null, POWER_STATE_ON, POWER_FORCE);
}
public int SoftReset()
{
// Though I guess this will never really return anything
return SetSystemPowerState(null, POWER_STATE_RESET, POWER_FORCE);
}
