indicator DRAW_HISTOGRAM type line not showing after upgrade to MT4_B600 and compile source file.
looks like the indicator DRAW_HISTOGRAM line have 2 buffer, and both 2 buffer cannot be 0.
#property strict #property indicator_chart_window #property indicator_buffers 2 #property indicator_color1 Blue #property indicator_color2 Red double buf0[]; double buf1[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { IndicatorBuffers(2); IndicatorDigits(Digits); SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_DOT); SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_DOT); SetIndexBuffer(0,buf0); SetIndexBuffer(1,buf1); SetIndexEmptyValue(0,0.0); SetIndexEmptyValue(1,0.0); return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ int OnCalculate(const int rates_total, const int prev_calculated, const datetime &time[], const double &open[], const double &high[], const double &low[], const double &close[], const long &tick_volume[], const long &volume[], const int &spread[]) { for(int i=rates_total-1; i>=0; i--) { buf0[i]=19.5; buf1[i]=19; } return(rates_total); }

if changed from "#property indicator_chart_window" to "#property indicator_separate_window", show in separate window, it's OK. So, i think it's bug in new released MT4 Build600 version.
claud:
Please use the SRC button when posting code.
After the MT4 upgrade, re-compiled the indicator source file, the DRAW_HISTOGRAM don't show again. Why? Thanks a lot.
<CODE DELETED>
This bug is not fixed in just released new build 604 version.
After the MT4 upgrade, re-compiled the indicator source file, the DRAW_HISTOGRAM don't show again. Why? Thanks a lot.