//+------------------------------------------------------------------+
//| CustomTicksDelete.mq5 |
//| Copyright 2024, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2024, MetaQuotes Ltd."
#property link "https://www.mql5.com"
#property version "1.00"
#define CUSTOM_SYMBOL_NAME Symbol()+".C" // nome do símbolo personalizado
#define CUSTOM_SYMBOL_PATH "Forex" // nome do grupo onde o símbolo será criado
#define CUSTOM_SYMBOL_ORIGIN Symbol() // nome do símbolo usado como base para a criação do símbolo personalizado
#define DATATICKS_TO_COPY UINT_MAX // quantidade de ticks copiados
#define DATATICKS_TO_DELETE 10 // quantidade de ticks a serem deletados
#define DATATICKS_TO_PRINT 20 // quantidade de ticks exibidos no log
//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart()
{
//--- obtemos o código de erro ao criar o símbolo personalizado
int create=CreateCustomSymbol(CUSTOM_SYMBOL_NAME, CUSTOM_SYMBOL_PATH, CUSTOM_SYMBOL_ORIGIN);
//--- se o código de erro não for 0 (criação bem-sucedida do símbolo) e não for 5304 (símbolo já criado), saímos.
if(create!=0 && create!=5304)
return;
//--- obtemos no array MqlTick os dados de ticks do símbolo padrão
MqlTick array[]={};
if(!GetTicksToArray(CUSTOM_SYMBOL_ORIGIN, DATATICKS_TO_COPY, array))
return;
//--- imprimimos o horário do primeiro e último tick obtido do símbolo padrão
int total=(int)array.Size();
PrintFormat("First tick time: %s.%03u, Last tick time: %s.%03u",
TimeToString(array[0].time,TIME_DATE|TIME_MINUTES|TIME_SECONDS), array[0].time_msc%1000,
TimeToString(array[total-1].time, TIME_DATE|TIME_MINUTES|TIME_SECONDS), array[total-1].time_msc%1000);
//--- imprimimos no log os últimos DATATICKS_TO_PRINT ticks do símbolo padrão
PrintFormat("\nThe last %d ticks for the standard symbol '%s':", DATATICKS_TO_PRINT, CUSTOM_SYMBOL_ORIGIN);
for(int i=total-DATATICKS_TO_PRINT; i<total; i++)
{
if(i<0)
continue;
PrintFormat(" %dth Tick: %s", i, GetTickDescription(array[i]));
}
//--- adicionamos o símbolo personalizado na janela MarketWatch (observação do mercado)
ResetLastError();
if(!SymbolSelect(CUSTOM_SYMBOL_NAME, true))
{
Print("SymbolSelect() failed. Error ", GetLastError());
return;
}
//--- adicionamos à história de preços do símbolo personalizado os dados do array de ticks
Print("...");
uint start=GetTickCount();
PrintFormat("Start of adding %u ticks to the history of the custom symbol '%s'", array.Size(), CUSTOM_SYMBOL_NAME);
int added=CustomTicksAdd(CUSTOM_SYMBOL_NAME, array);
PrintFormat("Added %u ticks to the history of the custom symbol '%s' in %u ms", added, CUSTOM_SYMBOL_NAME, GetTickCount()-start);
//--- obtemos no array MqlTick os dados de ticks recém-adicionados do símbolo personalizado
Print("...");
if(!GetTicksToArray(CUSTOM_SYMBOL_NAME, array.Size(), array))
return;
//--- imprimimos o horário do primeiro e último tick obtido do símbolo personalizado
total=(int)array.Size();
PrintFormat("First tick time: %s.%03u, Last tick time: %s.%03u",
TimeToString(array[0].time, TIME_DATE|TIME_MINUTES|TIME_SECONDS), array[0].time_msc%1000,
TimeToString(array[total-1].time, TIME_DATE|TIME_MINUTES|TIME_SECONDS), array[total-1].time_msc%1000);
//--- imprimimos no log os últimos DATATICKS_TO_PRINT ticks do símbolo personalizado
PrintFormat("\nThe last %d ticks for the custom symbol '%s':", DATATICKS_TO_PRINT, CUSTOM_SYMBOL_NAME);
for(int i=total-DATATICKS_TO_PRINT; i<total; i++)
{
if(i<0)
continue;
PrintFormat(" %dth Tick: %s", i, GetTickDescription(array[i]));
}
//--- obtemos da história o horário do tick em milissegundos, a partir do qual iremos deletar o intervalo de ticks
long time_from=array[total-DATATICKS_TO_DELETE-1].time_msc;
//--- deletamos o intervalo de DATATICKS_TO_DELETE últimos ticks do símbolo personalizado no array
Print("...");
start=GetTickCount();
PrintFormat("Start deleting %u ticks in the history of the custom symbol '%s'", DATATICKS_TO_DELETE, CUSTOM_SYMBOL_NAME);
int deleted=CustomTicksDelete(CUSTOM_SYMBOL_NAME, time_from, array[total-2].time_msc);
PrintFormat("Deleted %u ticks in the history of the custom symbol '%s' in %u ms", deleted, CUSTOM_SYMBOL_NAME, GetTickCount()-start);
//--- obtemos no array MqlTick os dados de ticks recém-alterados do símbolo personalizado
Print("...");
if(!GetTicksToArray(CUSTOM_SYMBOL_NAME, array.Size(), array))
return;
//--- imprimimos o horário do primeiro e último tick do símbolo personalizado com o intervalo de ticks excluído
total=(int)array.Size();
PrintFormat("Time of the first tick from the changed history: %s.%03u, Time of the last tick from the changed history: %s.%03u",
TimeToString(array[0].time, TIME_DATE|TIME_MINUTES|TIME_SECONDS), array[0].time_msc%1000,
TimeToString(array[total-1].time, TIME_DATE|TIME_MINUTES|TIME_SECONDS), array[total-1].time_msc%1000);
//--- imprimimos no log os últimos DATATICKS_TO_PRINT ticks do símbolo personalizado
PrintFormat("\nThe last %d ticks of custom symbol '%s' with modified history:", DATATICKS_TO_PRINT, CUSTOM_SYMBOL_NAME);
for(int i=total-DATATICKS_TO_PRINT; i<total; i++)
{
if(i<0)
continue;
PrintFormat(" %dth Tick: %s", i, GetTickDescription(array[i]));
}
//--- no comentário do gráfico exibimos a dica sobre as chaves de encerramento do script
Comment(StringFormat("Press 'Esc' to exit or 'Del' to delete the '%s' symbol and exit", CUSTOM_SYMBOL_NAME));
//--- em um loop infinito, esperamos as teclas Esc ou Del para sair
while(!IsStopped() && TerminalInfoInteger(TERMINAL_KEYSTATE_ESCAPE)==0)
{
Sleep(16);
//--- ao pressionar Del, excluímos o símbolo personalizado criado e seus dados
if(TerminalInfoInteger(TERMINAL_KEYSTATE_DELETE)<0)
{
//--- excluímos os dados das barras
int deleted=CustomRatesDelete(CUSTOM_SYMBOL_NAME, 0, LONG_MAX);
if(deleted>0)
PrintFormat("%d history bars of the custom symbol '%s' were successfully deleted", deleted, CUSTOM_SYMBOL_NAME);
//--- excluímos os dados de ticks
deleted=CustomTicksDelete(CUSTOM_SYMBOL_NAME, 0, LONG_MAX);
if(deleted>0)
PrintFormat("%d history ticks of the custom symbol '%s' were successfully deleted", deleted, CUSTOM_SYMBOL_NAME);
//--- excluímos o símbolo
if(DeleteCustomSymbol(CUSTOM_SYMBOL_NAME))
PrintFormat("Custom symbol '%s' deleted successfully", CUSTOM_SYMBOL_NAME);
break;
}
}
//--- antes de sair, limpamos o gráfico
Comment("");
/*
resultado:
Requested 4294967295 ticks to get tick history for the symbol 'EURUSD'
The tick history for the 'EURUSD' symbol is received in the amount of 351199027 ticks in 55875 ms
First tick time: 2011.12.19 00:00:08.000, Last tick time: 2024.06.21 10:10:40.392
The last 20 ticks for the standard symbol 'EURUSD':
351199007th Tick: 2024.06.21 10:10:23.045 Bid=1.07032 (Info tick)
351199008th Tick: 2024.06.21 10:10:24.045 Ask=1.07031 Bid=1.07031 (Info tick)
351199009th Tick: 2024.06.21 10:10:24.545 Ask=1.07032 (Info tick)
351199010th Tick: 2024.06.21 10:10:25.146 Bid=1.07032 (Info tick)
351199011th Tick: 2024.06.21 10:10:25.649 Ask=1.07037 Bid=1.07037 (Info tick)
351199012th Tick: 2024.06.21 10:10:27.050 Ask=1.07036 Bid=1.07036 (Info tick)
351199013th Tick: 2024.06.21 10:10:28.153 Ask=1.07039 Bid=1.07039 (Info tick)
351199014th Tick: 2024.06.21 10:10:29.157 Ask=1.07037 Bid=1.07037 (Info tick)
351199015th Tick: 2024.06.21 10:10:29.658 Ask=1.07036 Bid=1.07036 (Info tick)
351199016th Tick: 2024.06.21 10:10:30.258 Bid=1.07036 (Info tick)
351199017th Tick: 2024.06.21 10:10:30.872 Ask=1.07035 Bid=1.07035 (Info tick)
351199018th Tick: 2024.06.21 10:10:31.358 Ask=1.07036 (Info tick)
351199019th Tick: 2024.06.21 10:10:31.859 Ask=1.07037 Bid=1.07037 (Info tick)
351199020th Tick: 2024.06.21 10:10:32.377 Ask=1.07039 Bid=1.07039 (Info tick)
351199021th Tick: 2024.06.21 10:10:32.962 Ask=1.0704 Bid=1.0704 (Info tick)
351199022th Tick: 2024.06.21 10:10:33.961 Ask=1.07039 Bid=1.07039 (Info tick)
351199023th Tick: 2024.06.21 10:10:34.667 Ask=1.0704 (Info tick)
351199024th Tick: 2024.06.21 10:10:35.170 Bid=1.0704 (Info tick)
351199025th Tick: 2024.06.21 10:10:38.266 Ask=1.07041 Bid=1.07041 (Info tick)
351199026th Tick: 2024.06.21 10:10:40.392 Ask=1.07042 Bid=1.07042 (Info tick)
...
Start of adding 351199027 ticks to the history of the custom symbol 'EURUSD.C'
Added 351199027 ticks to the history of the custom symbol 'EURUSD.C' in 261594 ms
...
Requested 351199027 ticks to get tick history for the symbol 'EURUSD.C'
The tick history for the 'EURUSD.C' symbol is received in the amount of 351199027 ticks in 137156 ms
First tick time: 2011.12.19 00:00:08.000, Last tick time: 2024.06.21 10:10:40.392
The last 20 ticks for the custom symbol 'EURUSD.C':
351199007th Tick: 2024.06.21 10:10:23.045 Ask=1.07032 Bid=1.07032 (Info tick)
351199008th Tick: 2024.06.21 10:10:24.045 Ask=1.07031 Bid=1.07031 (Info tick)
351199009th Tick: 2024.06.21 10:10:24.545 Ask=1.07032 Bid=1.07032 (Info tick)
351199010th Tick: 2024.06.21 10:10:25.146 Ask=1.07032 Bid=1.07032 (Info tick)
351199011th Tick: 2024.06.21 10:10:25.649 Ask=1.07037 Bid=1.07037 (Info tick)
351199012th Tick: 2024.06.21 10:10:27.050 Ask=1.07036 Bid=1.07036 (Info tick)
351199013th Tick: 2024.06.21 10:10:28.153 Ask=1.07039 Bid=1.07039 (Info tick)
351199014th Tick: 2024.06.21 10:10:29.157 Ask=1.07037 Bid=1.07037 (Info tick)
351199015th Tick: 2024.06.21 10:10:29.658 Ask=1.07036 Bid=1.07036 (Info tick)
351199016th Tick: 2024.06.21 10:10:30.258 Ask=1.07036 Bid=1.07036 (Info tick)
351199017th Tick: 2024.06.21 10:10:30.872 Ask=1.07035 Bid=1.07035 (Info tick)
351199018th Tick: 2024.06.21 10:10:31.358 Ask=1.07036 Bid=1.07036 (Info tick)
351199019th Tick: 2024.06.21 10:10:31.859 Ask=1.07037 Bid=1.07037 (Info tick)
351199020th Tick: 2024.06.21 10:10:32.377 Ask=1.07039 Bid=1.07039 (Info tick)
351199021th Tick: 2024.06.21 10:10:32.962 Ask=1.0704 Bid=1.0704 (Info tick)
351199022th Tick: 2024.06.21 10:10:33.961 Ask=1.07039 Bid=1.07039 (Info tick)
351199023th Tick: 2024.06.21 10:10:34.667 Ask=1.0704 Bid=1.0704 (Info tick)
351199024th Tick: 2024.06.21 10:10:35.170 Ask=1.0704 Bid=1.0704 (Info tick)
351199025th Tick: 2024.06.21 10:10:38.266 Ask=1.07041 Bid=1.07041 (Info tick)
351199026th Tick: 2024.06.21 10:10:40.392 Ask=1.07042 Bid=1.07042 (Info tick)
...
Start deleting 10 ticks in the history of the custom symbol 'EURUSD.C'
Deleted 10 ticks in the history of the custom symbol 'EURUSD.C' in 188 ms
...
Requested 351199027 ticks to get tick history for the symbol 'EURUSD.C'
The tick history for the 'EURUSD.C' symbol is received in the amount of 351199017 ticks in 138312 ms
Time of the first tick from the changed history: 2011.12.19 00:00:08.000, Time of the last tick from the changed history: 2024.06.21 10:10:40.392
The last 20 ticks of custom symbol 'EURUSD.C' with modified history:
351198997th Tick: 2024.06.21 10:10:14.935 Ask=1.07036 Bid=1.07036 (Info tick)
351198998th Tick: 2024.06.21 10:10:15.533 Ask=1.07035 Bid=1.07035 (Info tick)
351198999th Tick: 2024.06.21 10:10:17.736 Ask=1.07036 Bid=1.07036 (Info tick)
351199000th Tick: 2024.06.21 10:10:18.540 Ask=1.07037 Bid=1.07037 (Info tick)
351199001th Tick: 2024.06.21 10:10:19.046 Ask=1.07038 Bid=1.07038 (Info tick)
351199002th Tick: 2024.06.21 10:10:19.542 Ask=1.07036 Bid=1.07036 (Info tick)
351199003th Tick: 2024.06.21 10:10:20.041 Ask=1.07035 Bid=1.07035 (Info tick)
351199004th Tick: 2024.06.21 10:10:21.041 Ask=1.07035 Bid=1.07035 (Info tick)
351199005th Tick: 2024.06.21 10:10:21.544 Ask=1.07032 Bid=1.07032 (Info tick)
351199006th Tick: 2024.06.21 10:10:22.344 Ask=1.07032 Bid=1.07032 (Info tick)
351199007th Tick: 2024.06.21 10:10:23.045 Ask=1.07032 Bid=1.07032 (Info tick)
351199008th Tick: 2024.06.21 10:10:24.045 Ask=1.07031 Bid=1.07031 (Info tick)
351199009th Tick: 2024.06.21 10:10:24.545 Ask=1.07032 Bid=1.07032 (Info tick)
351199010th Tick: 2024.06.21 10:10:25.146 Ask=1.07032 Bid=1.07032 (Info tick)
351199011th Tick: 2024.06.21 10:10:25.649 Ask=1.07037 Bid=1.07037 (Info tick)
351199012th Tick: 2024.06.21 10:10:27.050 Ask=1.07036 Bid=1.07036 (Info tick)
351199013th Tick: 2024.06.21 10:10:28.153 Ask=1.07039 Bid=1.07039 (Info tick)
351199014th Tick: 2024.06.21 10:10:29.157 Ask=1.07037 Bid=1.07037 (Info tick)
351199015th Tick: 2024.06.21 10:10:29.658 Ask=1.07036 Bid=1.07036 (Info tick)
351199016th Tick: 2024.06.21 10:10:40.392 Ask=1.07042 Bid=1.07042 (Info tick)
*/
}
//+------------------------------------------------------------------+
//| Cria um símbolo personalizado, retorna o código de erro |
//+------------------------------------------------------------------+
int CreateCustomSymbol(const string symbol_name, const string symbol_path, const string symbol_origin=NULL)
{
//--- definimos o nome do símbolo usado como base para criar o símbolo personalizado
string origin=(symbol_origin==NULL ? Symbol() : symbol_origin);
//--- se não for possível criar o símbolo personalizado, e isso não for um erro 5304, informamos no log
ResetLastError();
int error=0;
if(!CustomSymbolCreate(symbol_name, symbol_path, origin))
{
error=GetLastError();
if(error!=5304)
PrintFormat("CustomSymbolCreate(%s, %s, %s) failed. Error %d", symbol_name, symbol_path, origin, error);
}
//--- sucesso
return(error);
}
//+------------------------------------------------------------------+
//| Exclui o símbolo personalizado |
//+------------------------------------------------------------------+
bool DeleteCustomSymbol(const string symbol_name)
{
//--- ocultamos o símbolo da janela Observação do Mercado
ResetLastError();
if(!SymbolSelect(symbol_name, false))
{
PrintFormat("SymbolSelect(%s, false) failed. Error %d", GetLastError());
return(false);
}
//--- se não for possível excluir o símbolo personalizado, informamos no log e retornamos false
ResetLastError();
if(!CustomSymbolDelete(symbol_name))
{
PrintFormat("CustomSymbolDelete(%s) failed. Error %d", symbol_name, GetLastError());
return(false);
}
//--- sucesso
return(true);
}
//+------------------------------------------------------------------+
//| Obtém a quantidade especificada de ticks no array |
//+------------------------------------------------------------------+
bool GetTicksToArray(const string symbol, const uint count, MqlTick &array[])
{
//--- informamos sobre o início do carregamento dos dados históricos
PrintFormat("Requested %u ticks to get tick history for the symbol '%s'", count, symbol);
//--- fazemos 3 tentativas de obter ticks
int attempts=0;
while(attempts<3)
{
//--- medimos o tempo de início antes de obter ticks
uint start=GetTickCount();
//--- solicitamos a história de ticks desde 1970.01.01 00:00.001 (parâmetro from=1 ms)
int received=CopyTicks(symbol, array, COPY_TICKS_ALL, 1, count);
if(received!=-1)
{
//--- informamos sobre a quantidade de ticks e o tempo gasto
PrintFormat("The tick history for the '%s' symbol is received in the amount of %u ticks in %d ms", symbol, received, GetTickCount()-start);
//--- se a história de ticks estiver sincronizada, o código de erro é zero - retornamos true
if(GetLastError()==0)
return(true);
PrintFormat("%s: Ticks are not synchronized yet, %d ticks received for %d ms. Error=%d",
symbol, received, GetTickCount()-start, GetLastError());
}
//--- contamos as tentativas
attempts++;
//--- pausa de 1 segundo aguardando a conclusão da sincronização da base de ticks
Sleep(1000);
}
//--- não foi possível copiar ticks em 3 tentativas
return(false);
}
//+------------------------------------------------------------------+
//| retorna a descrição do tick em formato string |
//+------------------------------------------------------------------+
string GetTickDescription(MqlTick &tick)
{
string desc=StringFormat("%s.%03u ", TimeToString(tick.time, TIME_DATE|TIME_MINUTES|TIME_SECONDS),tick.time_msc%1000);
//--- verificamos os flags do tick
bool buy_tick = ((tick.flags &TICK_FLAG_BUY) == TICK_FLAG_BUY);
bool sell_tick = ((tick.flags &TICK_FLAG_SELL) == TICK_FLAG_SELL);
bool ask_tick = ((tick.flags &TICK_FLAG_ASK) == TICK_FLAG_ASK);
bool bid_tick = ((tick.flags &TICK_FLAG_BID) == TICK_FLAG_BID);
bool last_tick = ((tick.flags &TICK_FLAG_LAST) == TICK_FLAG_LAST);
bool volume_tick= ((tick.flags &TICK_FLAG_VOLUME)== TICK_FLAG_VOLUME);
//--- verificamos primeiro os flags de negociação do tick (para CustomTicksAdd() não há)
if(buy_tick || sell_tick)
{
//--- formatamos a saída para um tick de negociação
desc += (buy_tick ? StringFormat("Buy Tick: Last=%G Volume=%d ", tick.last, tick.volume) : "");
desc += (sell_tick? StringFormat("Sell Tick: Last=%G Volume=%d ",tick.last, tick.volume) : "");
desc += (ask_tick ? StringFormat("Ask=%G ", tick.ask) : "");
desc += (bid_tick ? StringFormat("Bid=%G ", tick.ask) : "");
desc += "(Trade tick)";
}
else
{
//--- para um tick de informação, formatamos a saída de forma um pouco diferente
desc += (ask_tick ? StringFormat("Ask=%G ", tick.ask) : "");
desc += (bid_tick ? StringFormat("Bid=%G ", tick.ask) : "");
desc += (last_tick ? StringFormat("Last=%G ", tick.last) : "");
desc += (volume_tick? StringFormat("Volume=%d ",tick.volume): "");
desc += "(Info tick)";
}
//--- retornamos a descrição do tick
return(desc);
}
|