Screen wipe - please assist

Hi,

Is there a simply way to wipe all display info from the screen e.g, I am using M15 bars count as a timer for indicators to seek data and then display the result but I want to wipe the old data prior to displaying the new

How can i do that

Thanks in advance for you help it will be much appreciated

If you are using MT4 and having - Right click on the chart where you want to delete objects or indicators etc or you can use a short key ( Ctrl + B ).

An object will appear delete the object you want to delete or you can delete all of them so you can start new.See the attachment and it will explain you with the process.

I found this in my archive of indicators. Try it.

try this, put it in the scripts folder ...

Thanks but do you have it in mq4 rather than ex4

Thanks but screen displays are not Objects

You say that you are not talking about objects so ..
If I am correct in thinking that you have the code that is displaying the info on screen as a Comment then add......

Comment("");

Just before you want to add the new data (But a new comment should erase the old one anyway).

HTH

Hi,

It's not so easy unfortunately, the display is driven by the following code, not the Comment function ;

DisplayLine(cc2,TradePair[cc],val, val1, val2, rsi, tally);

So this returns values for all pairs for the chosen indicators as a list on the screen

I want to wipe the list prior to re-running the pairs scan for new values

Stop teasing.
Show the code for the 'Displayline' function/sub-routine and somebody stands a chance of helping.

I'm certainly not trying to be mysterious !: notworthy

Partial relevant code potion is :

if (Use_Select == false ){

if ((val1 < 0 && val4 >0) || ( val1 > 0 && val4 <0))
{ // high or low tally means breakout especially with iforceangle

Print ("Possible BREAKOUT ", TradePair[cc]);
PlaySound ("ohyeah.wav");
}

SortRSI[NoToPrint][0] = val; //was force - prevrsi;
SortRSI[NoToPrint][1] = rsi;
SortRSI[NoToPrint][2] = cc;
SortRSI[NoToPrint][3] = val1;
SortRSI[NoToPrint][4] = val2;
SortRSI[NoToPrint][5] = tally;
NoToPrint++;
}

} // (BarCount != iBars(NULL, PERIOD_M30) )



ArraySort(SortRSI,NoToPrint,0,MODE_DESCEND);

for (int cc2 = 0; cc2 < NoToPrint; cc2++)
{
cc = SortRSI[cc2][2];


val = SortRSI[cc2][0];
rsi = SortRSI[cc2][1];
val1 = SortRSI[cc2][3];
val2 = SortRSI[cc2][4];
tally = SortRSI[cc2][5];



DisplayLine(cc2,TradePair[cc],val, val1, val2, rsi, tally);
}//for (int cc = 0; cc <= NoOfPairs; cc++)
}//if (BarCount != iBars(NULL, PERIOD_M5)


}

void DisplayLine(int line, string pair, double val, double val1, double val2, int rsi, double tally) {

string str = LabelName+" "+line+" ";
if (ObjectFind(str+1)<0) {
ObjectCreate(str+1, OBJ_LABEL, 0, 0, 0);
ObjectCreate(str+2, OBJ_LABEL, 0, 0, 0);
// ObjectCreate(str+3, OBJ_LABEL, 0, 0, 0);
ObjectCreate(str+4, OBJ_LABEL, 0, 0, 0);
ObjectCreate(str+5, OBJ_LABEL, 0, 0, 0);
ObjectCreate(str+6, OBJ_LABEL, 0, 0, 0);
ObjectCreate(str+7, OBJ_LABEL, 0, 0, 0);
ObjectCreate(str+8, OBJ_LABEL, 0, 0, 0);

}

ObjectSet(str+1,OBJPROP_XDISTANCE, xoff);
ObjectSet(str+1,OBJPROP_YDISTANCE, yoff+line*ydelta);
ObjectSetText(str+1,GetArrow(2*(rsi-50)),font_size,"Wingdings",font_color);

ObjectSet(str+2,OBJPROP_XDISTANCE, xoff+2*font_size);
ObjectSet(str+2,OBJPROP_YDISTANCE, yoff+line*ydelta);
ObjectSetText(str+2,pair,font_size,font_typeface,font_color);

// ObjectSet(str+3,OBJPROP_XDISTANCE, xoff+8*font_size);
// ObjectSet(str+3,OBJPROP_YDISTANCE, yoff+line*ydelta);
// ObjectSetText(str+3,DoubleToStr(force,2),font_size,font_typeface,font_color);


ObjectSet(str+4,OBJPROP_XDISTANCE, xoff+8*font_size);
ObjectSet(str+4,OBJPROP_YDISTANCE, yoff+line*ydelta);
ObjectSetText(str+4,DoubleToStr(val,3),font_size,font_typeface,font_color);

ObjectSet(str+5,OBJPROP_XDISTANCE, xoff+14*font_size);
ObjectSet(str+5,OBJPROP_YDISTANCE, yoff+line*ydelta);
ObjectSetText(str+5,DoubleToStr(val1,3),font_size,font_typeface,font_color);

ObjectSet(str+6,OBJPROP_XDISTANCE, xoff+20*font_size);
ObjectSet(str+6,OBJPROP_YDISTANCE, yoff+line*ydelta);
ObjectSetText(str+6,DoubleToStr(val2,3),font_size,font_typeface,font_color);


ObjectSet(str+7,OBJPROP_XDISTANCE, xoff+27*font_size);
ObjectSet(str+7,OBJPROP_YDISTANCE, yoff+line*ydelta);
ObjectSetText(str+7,DoubleToStr(rsi,0),font_size,font_typeface,font_color);

ObjectSet(str+8,OBJPROP_XDISTANCE, xoff+31*font_size);
ObjectSet(str+8,OBJPROP_YDISTANCE, yoff+line*ydelta);
ObjectSetText(str+8,DoubleToStr(tally,3),font_size,font_typeface,font_color);


}

Question is how do I wipe the screen display prior to new data being displayed

My suggestion to try (not having seen the full code)
would be to add this function.....



void DeleteObjects()
{
int objs = ObjectsTotal();
string name;
for(int cnt=ObjectsTotal()-1;cnt>=0;cnt--)
{
name=ObjectName(cnt);
if (StringFind(name,"LabelName",0)>-1)
ObjectDelete(name);
WindowRedraw();
}
}


and then just before the call for DisplayLine add this....

DeleteObjects();



Not sure what is happening that you do not like ... is it leaving old stuff there and trying to put new stuff on top of it??
That would be my interpretation anyway.

HTH

Thank you that seem's to work a treat, your kindness much appreciated.

Yes, the problem was that it was leaving residual lines of display if the current updating did not extend to previous number of display lines.

Thanks again