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if i want to add a new symbol and import its data into the history centre

I like MQL4 platform, and i strongly favor the testing power and optimisation tools, also the more open programming flexibility, but my point is, i want to test my strategy in other symbols, like individual stocks and other stock indexes, futures contracts, etc. How can i do this? appreciate very

what does order send error 3 mean? how to correct them?

hello, friends, i met a problem when compiling the code below(abstracted): it always shows there are 'order send error 3',from the error codes, i can find that error 3 means 'Invalid trade parameters', i've check with the every parameter within

Can anybody help me? tks a lot. About error shows "zero divide" when uploading my indicator to EA

Within the strategy testor , when i run my EA, every time it show the error code in the Journal like this: "QWYSC EURUSD daily: load successfully QWYSC EURUSD daily: zero divide" QWYSC is the name of my indicator. however, if i add my EA into the EURUSD, in the journal, it shows no error: "Custom