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Project1.dpr
program Project1;
uses
Forms,Windows,
Unit1 in 'Unit1.pas' {Form1};
{$R *.res}
begin
Application.Initialize;
SetWindowLong(Application.Handle,GWL_EXSTYLE,WS_EX_TOOLWINDOW);//使程序不显示在任务栏中
Application.Title := '电池电量显示';
Application.CreateForm(TForm1, Form1);
Application.Run;
end.
======================================================================
Unit1.pas
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls, RzStatus, Menus;
type
TForm1 = class(TForm)
Timer1: TTimer;
RzProgressStatus1: TRzProgressStatus;
PopupMenu1: TPopupMenu;
N1: TMenuItem;
procedure Timer1Timer(Sender: TObject);
procedure N1Click(Sender: TObject);
procedure RzProgressStatus1MouseDown(Sender: TObject;
Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Timer1Timer(Sender: TObject);
var
Power: TSystemPowerStatus;
begin
GetSystemPowerStatus(Power);
RzProgressStatus1.Percent:=Power.BatteryLifePercent;//获取电量百分比
//根据电量百分比显示不同颜色
if Power.BatteryLifePercent>=40 then
begin
RzProgressStatus1.BarColor:=clLime;
RzProgressStatus1.BarColorStop:=clGreen;
end
else if (Power.BatteryLifePercent<40) and (Power.BatteryLifePercent>=10) then
begin
RzProgressStatus1.BarColor:=clYellow;
RzProgressStatus1.BarColorStop:=clOlive;
end
else if Power.BatteryLifePercent<10 then
begin
RzProgressStatus1.BarColor:=clRed;
RzProgressStatus1.BarColorStop:=clMaroon;
end;
end;
procedure TForm1.N1Click(Sender: TObject);
begin
Close;
end;
procedure TForm1.RzProgressStatus1MouseDown(Sender: TObject;
Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
//为控件添加拖动事件,使其可以被拖动
ReleaseCapture;
SendMessage(Handle, WM_SYSCOMMAND, 61457, 0);
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
//指定显示位置..桌面右下角
Form1.Left:=Screen.Width-RzProgressStatus1.Width+2;
Form1.Top:=Screen.Height-RzProgressStatus1.Height-29;
end;
end.
来源：http://www.cnblogs.com/lahcs/archive/2009/03/17/1414099.html
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