Private Declare Function GetSystemPowerStatus Lib "kernel32" _ (lpSystemPowerStatus As SYSTEM_POWER_STATUS) As LongPrivate Type SYSTEM_POWER_STATUS ACLineStatus As Byte BatteryFlag As Byte BatteryLifePercent As Byte Reserved1 As Byte BatteryLifeTime As Long BatteryFullLifeTime As LongEnd Type' Get the life time of a notebook's battery.' Returns -1 if the computer is not a notebook or if it's not using a battery' Param values:' 0 -> return the lifetime in seconds (by default)' 1 -> return the lifetime in minutes' 2 -> return the lifetime in hours' Example:' MsgBox "Left minutes:" & GetBatteryTime(1)Private Function GetBatteryTime(Optional ByVal ResultFormat As Integer) As _ Double Dim SysStatus As SYSTEM_POWER_STATUS GetSystemPowerStatus SysStatus ' return the number of seconds If ResultFormat = 0 Then GetBatteryTime = SysStatus.BatteryLifeTime ' return the number of minutes ElseIf ResultFormat = 1 Then GetBatteryTime = SysStatus.BatteryLifeTime / 60 ' return the number of hours Else GetBatteryTime = SysStatus.BatteryLifeTime / 3600 End IfEnd Function
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