Period Converter Optimized Indicator For MT4
Table Of Contents:
- Period Converter Optimized Indicator For MT4
- Installere Period Converter Optimized Indicator For MT4
- Parametere for Period Converter Optimized Indicator For MT4
- Buffere av Period Converter Optimized Indicator For MT4
- Hoveddeler av koden
Period Converter Optimized Indicator For MT4 er en tilpasset versjon av MT4 standardperiodekonvertering. Den støtter sanntid forfriskende, og legger mindre belastning på CPU-en.
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Alerts In Real-Time When Divergences Occur
Installere Period Converter Optimized Indicator For MT4
Etter at du har lastet ned indikatoren via skjemaet over, må du pakke ut zip-filen. Deretter må du kopiere filen Period_Converter_Opt.mq4 til mappen MQL4Indicators for din MT4 installasjon. Etter det kan du starte MT4 på nytt, så vil du kunne se indikatoren i listen over indikatorer.
Parametere for Period Converter Optimized Indicator For MT4
Period Converter Optimized Indicator For MT4 har 7 parametere som skal konfigureres.
extern double Version = 1.4; // code version extern string BuildInfo = "2005.12.24 by Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere javaskript for å kunne se den."; extern int PeriodMultiplier = 2; // new period multiplier factor extern int OutputCSVFile = 0; // also output CSV file? extern int UpdateInterval = 0; // update interval in milliseconds, zero means update real-time. extern bool Enabled = true; extern bool Debug = false; Buffere av Period Converter Optimized Indicator For MT4
Period Converter Optimized Indicator For MT4 inneholder 0 buffere.
Hoveddeler av koden
so you have to apply every converter script again after restarting, quite annoying. This one fixed all above problems: 1. Real-time updating or custom interval millisecond level updating. 2. Low CPU cost, average 5%-10% or less. 3. Works as an indicator, so can be saved and reloaded during restart. 4. There is no one converter per chart limitation as it is not script any more, you can only use one window as source to generate as many new timeframe chart as possible. 5. Auto updating if there is new history block loaded. II. How to use: Copy the mq4 file to your MT4 indicators folder (expertsindicators) to install it as an indicator, NOT script. then in the custom indicator list, attach period_converter_opt to the chart you want. It support 4 parameters: PeriodMultiplier: new period multiplier factor, default is 2 UpdateInterval: update interval in milliseconds, zero means update real-time. default is zero. Enabled: You can disable it without remove it with this option. Other parameters are comments or for debugging, it is safe to ignore them. Also Make sure you have Allow Dll imports option checked in common tab or it won t work After that, File- gt Open Offline to open the generated offline data. then the offline data will be updated automatically. As long as you keep the source chart open and the converter indicator running, the generated chart including indicators inside will always be updated. also you can close the generated chart and open again later from File- gt Open Offline without problem. If you want to quit MT4, you can leave those offline chart as other normal online charts. when you start MT4 next time, those charts will also be loaded and updated. III. Notes: 1. Do NOT uncheck the "offline chart" option in offline chart common properties. or after MT4 restart, it will treat that chart as online chart and request the data from server, resulting empty chart window. 2. You can attach more than one converter to same window with different PeriodMultiplier, e.g: you can attach 3 converter with PeriodMultiplier = 2, 4, 10 to M1 to generate M2, M4, M10 at the same time. It is even ok to use the M1 chart to generate Hourly chart like H2, which only cost a few more CPU resource during initial conversion. but usually most server don t have much data for those short period. resulting the generated data isn t long enough for long period. so it is suggested to use Hourly/Daily charts as source when needed. 3. The real-time updating mode updates quotes as fast as possible, but as this is done via script, and MT will skip calling start() function when your PC is busy and lots of quotes income. anyway, this seldom happen, and you can at least get 10 updates each seconds which is much more than enough. 4. The offline chart don t have a bid line showing in chart, but all data in the chart including the indicators is still being updated, so don t worry. you can show the bid line by unclick the "offline chart" option in chart properties. but which don t helps much and if you forget to check "offline chart" option before exit. it will cause errors and become empty on next startup. you have to close the window and open again from File- gt Open offline, which don t worth the trouble. IV. History: 2005.12.24 1.4 faster to detect if data changed by removing float point operations, added support to output CSV file in real time. OutputCSVFile = 0 means no CSV. OutputCSVFile = 1 means CSV + HST OutputCSVFile = 2 CSV only, no HST . (useful if you want to generate CSV for builtin periods) CSV Filename will be the same as HST file except the extension. added safe checking for PeriodMultiplier. 2005.12.04 1.3 Fixed missing data when there is large amount of data loaded in several blocks, and support auto updating when new history is loaded. 2005.11.29 1.2 Additional fix for missing data and server changing. 2005.11.29 1.1 Fixed missing partial data after restart. Reinitialize after changing server or data corrupted. 2005.11.28 1.0 Initial release */ extern double Version = 1.4; // code version extern string BuildInfo = "2005.12.24 by Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere javaskript for å kunne se den."; extern int PeriodMultiplier = 2; // new period multiplier factor extern int OutputCSVFile = 0; // also output CSV file? extern int UpdateInterval = 0; // update interval in milliseconds, zero means update real-time. extern bool Enabled = true; extern bool Debug = false; int FileHandle = -1; int CSVHandle = -1; int NewPeriod = 0; #define OUTPUT_HST_ONLY 0 #define OUTPUT_CSV_HST 1 #define OUTPUT_CSV_ONLY 2 #define CHART_CMD_UPDATE_DATA 33324 void DebugMsg(string msg) { if (Debug) Alert(msg); } int init() { //safe checking for PeriodMultiplier. if (PeriodMultiplier lt = 1) { //only output CSV file PeriodMultiplier = 1; OutputCSVFile = 2; } NewPeriod = Period() * PeriodMultiplier; if (OpenHistoryFile() lt 0) return (-1); WriteHistoryHeader(); UpdateHistoryFile(Bars-1, true); UpdateChartWindow(); return (0); } void deinit() { //Close file handle if(FileHandle gt = 0) { FileClose(FileHandle); FileHandle = -1; } if (CSVHandle gt = 0) { FileClose(CSVHandle); CSVHandle = -1; } } int OpenHistoryFile() { string name; name = Symbol() + NewPeriod; if (OutputCSVFile != OUTPUT_CSV_ONLY) { FileHandle = FileOpenHistory(name + ".hst", FILE_BIN|FILE_WRITE); if (FileHandle lt 0) return(-1); } if (OutputCSVFile != OUTPUT_HST_ONLY) { CSVHandle = FileOpen(name + ".csv", FILE_CSV|FILE_WRITE, , ); if (CSVHandle lt 0) return(-1); } return (0); } int WriteHistoryHeader() { string c_copyright; int i_digits = Digits; int i_unused[13] = {0}; int version = 400; if (FileHandle lt 0) return (-1); c_copyright = "(C)opyright 2003, MetaQuotes Software Corp."; FileWriteInteger(FileHandle, version, LONG_VALUE); FileWriteString(FileHandle, c_copyright, 64); FileWriteString(FileHandle, Symbol(), 12); FileWriteInteger(FileHandle, NewPeriod, LONG_VALUE); FileWriteInteger(FileHandle, i_digits, LONG_VALUE); FileWriteInteger(FileHandle, 0, LONG_VALUE); //timesign FileWriteInteger(FileHandle, 0, LONG_VALUE); //last_sync FileWriteArray(FileHandle, i_unused, 0, ArraySize(i_unused)); return (0); } static double d_open, d_low, d_high, d_close, d_volume; static int i_time; void WriteHistoryData() { if (FileHandle gt = 0) { FileWriteInteger(FileHandle, i_time, LONG_VALUE); FileWriteDouble(FileHandle, d_open, DOUBLE_VALUE); FileWriteDouble(FileHandle, d_low, DOUBLE_VALUE); FileWriteDouble(FileHandle, d_high, DOUBLE_VALUE); FileWriteDouble(FileHandle, d_close, DOUBLE_VALUE); FileWriteDouble(FileHandle, d_volume, DOUBLE_VALUE); } if (CSVHandle gt = 0) { int i_digits = Digits; FileWrite(CSVHandle, TimeToStr(i_time, TIME_DATE), TimeToStr(i_time, TIME_MINUTES), DoubleToStr(d_open, i_digits), DoubleToStr(d_high, i_digits), DoubleToStr(d_low, i_digits), DoubleToStr(d_close, i_digits), d_volume); } } int UpdateHistoryFile(int start_pos, bool init = false) { static int last_fpos, csv_fpos; int i, ps; // if (FileHandle lt 0) return (-1); // normalize open time ps = NewPeriod * 60; i_time = Time[start_pos]/ps; i_time *= ps; if (init) { //first time, init data d_open = Open[start_pos]; d_low = Low[start_pos]; d_high = High[start_pos]; d_close = Close[start_pos]; d_volume = Volume[start_pos]; i = start_pos - 1; if (FileHandle gt = 0) last_fpos = FileTell(FileHandle); if (CSVHandle gt = 0) csv_fpos = FileTell(CSVHandle); } else { i = start_pos; if (FileHandle gt = 0) FileSeek(FileHandle,last_fpos,SEEK_SET); if (CSVHandle gt = 0) FileSeek(CSVHandle, csv_fpos, SEEK_SET); } if (i lt 0) return (-1); int cnt = 0; int LastBarTime; //processing bars while (i gt = 0) { LastBarTime = Time[i]; //a new bar if (LastBarTime gt = i_time+ps) { //write the bar data WriteHistoryData(); cnt++; i_time = LastBarTime/ps; i_time *= ps; d_open = Open[i]; d_low = Low[i]; d_high = High[i]; d_close = Close[i]; d_volume = Volume[i]; } else { //no new bar d_volume += Volume[i]; if (Low[i] lt d_low) d_low = Low[i]; if (High[i] gt d_high) d_high = High[i]; d_close = Close[i]; } i--; } //record last_fpos before writing last bar. if (FileHandle gt = 0) last_fpos = FileTell(FileHandle); if (CSVHandle gt = 0) csv_fpos = FileTell(CSVHandle); WriteHistoryData(); cnt++; d_volume -= Volume[0]; //flush the data writen if (FileHandle gt = 0) FileFlush(FileHandle); if (CSVHandle gt = 0) FileFlush(CSVHandle); return (cnt); } int UpdateChartWindow() { static int hwnd = 0; if (FileHandle lt 0) { //no HST file opened, no need updating. return (-1); } if(hwnd == 0) { //trying to detect the chart window for updating hwnd = WindowHandle(Symbol(), NewPeriod); } if(hwnd!= 0) { if (IsDllsAllowed() == false) { //DLL calls must be allowed DebugMsg("Dll calls must be allowed"); return (-1); } if (PostMessageA(hwnd,WM_COMMAND,CHART_CMD_UPDATE_DATA,0) == 0) { //PostMessage failed, chart window closed hwnd = 0; } else { //PostMessage succeed return (0); } } //window not found or PostMessage failed return (-1); } //| program start function | int start()
