setChartBG Button

[charley]

Good morning guys!

I am trying to place a button on a chart that will allow me to quickly change the chart background color but am having no luck. Thank you in advance.

Charley

var fpArray = new Array();

function preMain() {
    setPriceStudy(true);
    setStudyTitle("Chart BG");
    setShowCursorLabel(false);
    setShowTitleParameters(false);
    setDefaultChartBG(Color.black);
    
    var x=0;
    
    fpArray[x] = new FunctionParameter("aColor", FunctionParameter.COLOR);
    with(fpArray[x++]){    
        setName("Button Color");
        setDefault(Color.grey);
    }
    fpArray[x] = new FunctionParameter("bColor", FunctionParameter.COLOR);
    with(fpArray[x++]){    
        setName("Chart Color");
        setDefault(Color.black);
    }
    fpArray[x] = new FunctionParameter("cColor", FunctionParameter.COLOR);
    with(fpArray[x++]){    
        setName("Chart Color");
        setDefault(Color.white);                                                                             
    }
}
function main(aColor, bColor, cColor) {
    
        drawTextPixel(0, 12, "@URL=EFS:ChartBG", null, aColor, Text.RELATIVETOLEFT | Text.RELATIVETOBOTTOM, null, null, "Button", 40, 16);
    
    
    function ChartBG(nButtonPressed) {
        if (getButtonPressed(nButtonPressed) == 1) {
            setChartBG(cColor);
        }
        else if (getButtonPressed(nButtonPressed) == 2) {
            setChartBG(bColor);
        }
    }
}
function getButtonPressed(nButtonPressed) {
    
    if (nButtonPressed == BUTTON_LEFT) {
        return(1);
    }
    else if 
        (nButtonPressed == BUTTON_RIGHT) {
        return(2);
    }
} 

[waynecd]

try:

var fpArray = new Array(); 

function preMain() { 
    setPriceStudy(true); 
    setStudyTitle("Chart BG"); 
    setShowCursorLabel(false); 
    setShowTitleParameters(false); 
    setDefaultChartBG(Color.black); 
     
    var x=0; 
     
    fpArray[x] = new FunctionParameter("aColor", FunctionParameter.COLOR); 
    with(fpArray[x++]){     
        setName("Button Color"); 
        setDefault(Color.grey); 
    } 
    fpArray[x] = new FunctionParameter("bColor", FunctionParameter.COLOR); 
    with(fpArray[x++]){     
        setName("Chart Color"); 
        setDefault(Color.black); 
    } 
    fpArray[x] = new FunctionParameter("cColor", FunctionParameter.COLOR); 
    with(fpArray[x++]){     
        setName("Chart Color"); 
        setDefault(Color.white);                                                                              
    } 
} 
var Toggle=0;//global so the change is effected within main

function main(aColor, bColor, cColor) { 
    drawTextPixel(0, 12, "@URL=EFS:ChartBG", null, aColor, Text.RELATIVETOLEFT | Text.RELATIVETOBOTTOM, null, null, "Button", 40, 16); 
    if(Toggle==1){
        setChartBG(cColor); //setChartBG() is called from main(). 
                Toggle=0;//just to keep setChartBg() from running on each tick
    }else if(Toggle==2){
        setChartBG(bColor);//setChartBG() is called from main(). 
                Toggle=0;//just to keep setChartBg() from running on each tick
    }//NOTE: because the background color is changed in main() the change 
     //must wait until the next tick is processed before the change in color takes place.
     
     
} 
function getButtonPressed(nButtonPressed) { 
     
    if (nButtonPressed == BUTTON_LEFT) { 
        return(1); 
    } 
    else if  
        (nButtonPressed == BUTTON_RIGHT) { 
        return(2); 
    } 
}  
function ChartBG(nButtonPressed) { 
    if (getButtonPressed(nButtonPressed) == 1) { 
        Toggle=1;
    } 
    else if (getButtonPressed(nButtonPressed) == 2) { 
        Toggle=2;
    } 
} 

Wayne

[charley]

Thank you Wayne, I am definitely going to owe you a cold one one of these days.

[waynecd]

Glad it helped.

Wayne