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Tradewinds

Countdown Timer

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Counts down the time left in a minute bar.

 

{ This code is a modified version of _TimerExample4

v1.0	8 August 2011

Designed for TradeStation 9

This code is a simple bar countdown timer for minute bars.
}

using elsystem;

vars: TxtID(0),	IntrabarPersist DisplayTxt(" "), IntrabarPersist mins(0), IntrabarPersist secs(0),
	IntrabarPersist mins_str(""), IntrabarPersist secs_str(""),

	IntrabarPersist FrstCalc(true),

	Timer Timer1(null);

method void Timer1_Elapsed( Object sender, TimerElapsedEventArgs args ) 
begin
Calc_Time_Remaining();	//Call Subroutine that calculates the time remaining
Display_Text();			//Call Subroutine that displays time remaining
end;

//Calculate the amount of time remaining in the bar
// This is reasonably complex, but isn't particularly relevant to how the Timer object works
// so you don't need to understand it
method void Calc_Time_Remaining()
begin
//If its the end of a bar then set the countdown to the bar interval
if BarStatus(1) = 2 then begin
	mins = BarInterval;
	secs = 0;

	FrstCalc = false;

	//Turning time off and back on to sync it with the bar end
	Timer1.Enable = false;
	Timer1.Enable = true;
end
//Countdown our timer
else if FrstCalc = false then begin
	secs = secs - 1;
	if secs < 0 then begin
		mins = mins - 1;
		secs = 59;
	end;
	DisplayTxt = "       " + mins_str  +":" + secs_str;
End
//First approximation of bar time, before end of bar sync.
// It uses your computer clock to work out roughly how much time is left in a bar.
else begin
	//mins = BarInterval - Mod(MinutesFromDateTime(ComputerDateTime), BarInterval);
	//secs = 60 - SecondsFromDateTime(ComputerDateTime);
	//if secs = 60 then secs = 0;
	//if secs > 0 then mins = mins - 1;
	DisplayTxt = "Syncing...";
end;


//Set our DisplayTxt variable to the correct string
mins_str = NumToStr(mins, 0);
secs_str = NumToStr(secs, 0);
if strlen(secs_str) = 1 then secs_str = "0" + secs_str;
end;



//Display our countdown text
method void Display_Text()
begin
If secs = 10 then Condition1 = (Playsound("c:\wave\Ten.wav"));
If secs = 5 then Condition2 = (Playsound("c:\wave\5.wav"));
if secs <= 5 then 
		text_SetColor(TxtID, Red) // Use Alert Color
	Else text_SetColor(TxtID, Blue);
Text_SetString(TxtID, DisplayTxt);
Text_SetLocation(TxtID, D, T, (H+L)/2);
Text_SetStyle(TxtID, 0, 2);
end;

once
begin
//Create the Timer, set it to update every second, but don't start it yet
Timer1 = new elsystem.Timer;
Timer1.Interval = 1 * 1000;
Timer1.Elapsed += Timer1_Elapsed;

//Create the text to display the countdown	
TxtID = Text_New(date, time, (H+L)/2, DisplayTxt);
end;

//When the first real-time tick arrives...
if GetAppInfo(aiRealTimeCalc) = 1 then begin
//...start the Timer
Timer1.Enable = true;

//Set the amount of time left in a bar at the end of every bar
if BarStatus(1) = 2 then begin
	Calc_Time_Remaining();
end;
end;

Display_Text();

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