Real Buttons...

[dloomis]

I have a dilema...

All of the recent posting about buttons got me back thinking about my favorite subject, buttons.

I want to make a button by calling

drawButtons();

in main()

function drawButtons(){
drawTextPixel(1, yHt, "34EMA "+ema34+"@URL=EFS:ema34OnOff", Color.blue, Color.red, Text.BUTTON|Text.RELATIVETOLEFT|Text.RELATIVETOBOT TOM, "Courier", 10, 10)
}

which calls ema34OnOff(), which sets a flag, ema34 to on or off and then redraws the button

function ema34OnOff(){
if(ema34=="On"){ema34="Off";}
else{ema34="On";}
drawButtons();
}

and then redraws the button

Then in main I either draw the ema or not...

if(ema34=="Yes) return vEMA;
return;

but for some reason the var ema34 is not making it out of the ema34OnOff function back to main.

var vEMA = new MAStudy(34, 0, "HLC/3", MAStudy.EXPONENTIAL);

What am I missing?

[Doji3333]

Potential solution..

if your code, you have to create and maintain the control variables for your system.

The example below should help.

B


var vEMA = new MAStudy(34, 0, "HLC/3", MAStudy.EXPONENTIAL);
var ema34 = true;

function main()
{

//... other code...

drawButtons()

if(ema34) { return vEMA; } else
{ return; }

}

function drawButtons(){
drawTextPixel(1, yHt, "34EMA "+ema34+"@URL=EFS:ema34OnOff", Color.blue, Color.red, Text.BUTTON|Text.RELATIVETOLEFT|Text.RELATIVETOBOT TOM, "Courier", 10, 10)
}


function ema34OnOff(){
if(ema34){ema34=false;}
else{ema34=true;}
drawButtons();
}

[Gavishti]

Maybe it is just a typo in your post. You are missing a " in the statement if(ema34=="Yes) return vEMA; I've noticed that with JavaScript errors don't always show up where the problem is located.

[dloomis]

Thanks Brad, I was doing what you suggested but my code is so long I had forgotten I was using Yes/No not On/Off for the value of ema34, doh...

Anyway, I am able to change the value of ema34 with the button, but what I am trying to do is remove the 34ema from the chart, so I think I need to use the dreaded

reloadEFS()

I have a reload occur after I change the ema34 value from Yes to No, and debugPrint confirms it, but as soon as the reload starts, the value goes back to the default Yes. Does


var fp1 = new FunctionParameter("ema34", FunctionParameter.STRING);
fp1.setName("Display 34ema");
fp1.addOption("Yes"); fp1.addOption("No"); fp1.setDefault("Yes");

have anything to do with that?

[Guest]

Dave,

I am doing an extract on my code of the routine I use to save the present values as the new default values for the edit menus, if that would help. planning on posting tomorrow. The problem is I keep getting errors. It works where I have it in the original program... It is late though. from what u are saying it sounds like it would help.

Regards,