Win CE 5.0 increases battery power display

Excerpted from http://blog.csdn.net/li0531/article/details/8818243

A Label control is displayed only in the upper-right corner, so the amount of code is reduced a lot.

[DllImport ("Coredll")]Private Static extern intGetsystempowerstatusex (SYSTEM_POWER_STATUS_EX Lpsystempowerstatus,BOOLfupdate); [DllImport ("Coredll")] Public Static extern voidSystemidletimerreset ();PrivateSYSTEM_POWER_STATUS_EX STATUS =NewSYSTEM_POWER_STATUS_EX ();/// <summary>  /////Whether the charge status///// </summary>  //private state astate = State.normal;/// <summary>  ///Battery current status Charge: charging; Undercharge: low power; normal: battery is in use. /// </summary>   Public enumstate{/// <summary>      ///in charge/// </summary>  Charge,/// <summary>      ///Insufficient charge/// </summary>  Undercharge,/// <summary>      ///Normal State/// </summary>  Normal,/// <summary>      ///Charging Complete/// </summary>  chargefinally};Private classsystem_power_status_ex{ Public byteACLineStatus =0;  Public byteBatteryflag =0;  Public byteBatteryLifePercent =0;  Public byteReserved1 =0;  Public UINTBatterylifetime =0;  Public UINTBatteryFullLifetime =0;  Public byteReserved2 =0;  Public byteBackupbatteryflag =0;  Public byteBackupbatterylifepercent =0;  Public byteRESERVED3 =0;  Public UINTBackupbatterylifetime =0;  Public UINTBackupbatteryfulllifetime =0;}/// <summary>///To create a power indicator/// </summary>Private voidgetbatterystate () {if(Getsystempowerstatusex (Status,false) ==1)    {        if(Status. BatteryLifePercent >= the) {Labbattery.text=" -"; Labbattery.forecolor=Color.green; }        Else if(Status. BatteryLifePercent <= -)        {            if(Status. ACLineStatus = =1) Labbattery.text= status. Batterylifepercent.tostring () +" +"; ElseLabbattery.text="! "+status.            Batterylifepercent.tostring (); Labbattery.forecolor=color.red; }        Else{Labbattery.text= status. Batterylifepercent.tostring () + (status. ACLineStatus = =1?" +":""); Labbattery.forecolor=Color.Blue; }    }}

I call this method at a frequency of 10m under the Timer control.

Win CE 5.0 increases battery power display