GeneralTradingSarl
69 lines
2.5 KiB
Plaintext
69 lines
2.5 KiB
Plaintext
//|-----------------------------------------------------------------+
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//| instance.mq5 |
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//| Copyright (c) 2019, marketeer |
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//| https://www.mql5.com/en/users/marketeer |
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//| Based on the code proposed by https://www.mql5.com/en/users/jjc |
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//| at https://www.mql5.com/en/forum/149578/page2#comment_3752924 |
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//|-----------------------------------------------------------------+
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#property copyright "2019 (c) Marketeer"
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#property link "https://www.mql5.com/en/users/marketeer"
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#property version "1.1"
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#property description "This script allows a user to find out instance_id of running MT4/MT5 instance"
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// This script calculates instance_id for MT4/MT5 installations.
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// The instance_id is used in the roaming folder names such as
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// C:/Users/{username}/AppData/Roaming/MetaQuotes/Terminal/{instance_id}/.
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// Find more details here:
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// - MT4: https://www.metatrader4.com/en/trading-platform/help/userguide/start_comm#data_folder
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// - MT5: https://www.metatrader5.com/en/terminal/help/start_advanced/start#guest
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string instance_id(const string &strPath)
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{
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string strTest = strPath;
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StringToUpper(strTest);
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// Convert the string to widechar Unicode array (it will include a terminating 0)
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ushort arrShort[];
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const int n = StringToShortArray(strTest, arrShort); // n includes terminating 0, and should be dropped
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// Convert data to uchar array for hashing
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uchar widechars[];
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ArrayResize(widechars, (n - 1) * 2);
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for(int i = 0; i < n - 1; i++)
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{
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widechars[i * 2] = (uchar)(arrShort[i] & 0xFF);
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widechars[i * 2 + 1] = (uchar)((arrShort[i] >> 8) & 0xFF);
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}
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// Do an MD5 hash of the uchar array, containing the Unicode string
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uchar dummykey[1] = {0};
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uchar result[];
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if(CryptEncode(CRYPT_HASH_MD5, widechars, dummykey, result) == 0)
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{
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Print("Error ", GetLastError());
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return NULL;
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}
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return arrayToHex(result);
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}
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string arrayToHex(uchar &arr[])
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{
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string res = "";
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for(int i = 0; i < ArraySize(arr); i++)
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{
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res += StringFormat("%.2X", arr[i]);
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}
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return(res);
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}
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void OnStart()
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{
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const string path = TerminalInfoString(TERMINAL_PATH);
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// const string data = TerminalInfoString(TERMINAL_DATA_PATH);
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// const string common = TerminalInfoString(TERMINAL_COMMONDATA_PATH);
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Print("Install folder = ", path);
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// Print("Data folder = ", data);
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// Print("Common folder = ", common);
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Print("Instance ID = ", instance_id(path));
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} |