Add 2 custom indicators automatically to a chart with mql4 EA

[Emmanuel U]

Hi there. I stumbled across your a 2018 on how to add an indicator to a chart in MT4 using a ChartCustomIndicator() function. 

I have a problem because I want to add 2 indicators using this routine, but for some reason, I can only manage to add the first 1 and the second returns file cannot be found. Can you help?

Function:

int StartCustomIndicator(int hWnd,string IndicatorName, bool AutomaticallyAcceptDefaults=true)
{
Sleep(50);

uchar name[]; 

StringToCharArray(IndicatorName,name,0,StringLen(IndicatorName));
int MessageNumber=RegisterWindowMessageW("MetaTrader4_Internal_Message");
int r=PostMessageW(hWnd,MessageNumber,15,name);
Sleep(50);
if(AutomaticallyAcceptDefaults) {
int ind_settings = FindWindowW(NULL, "Custom Indicator - "+IndicatorName);
PostMessageW(ind_settings,0x100,VK_RETURN,name);
}
return(INIT_SUCCEEDED);
}


Call:

StartCustomIndicator(WindowHandle(Symbol(),0),"NVC");
StartCustomIndicator(WindowHandle(Symbol(),0),"Correlations MA");