To Develop an EA in MT4 -- 2

The project description is: - There is this desktop application you see in the document. It'll have several buttons to send buy and sell positions, close all positions, etc. - It also will have some account information (current balance, current equity, etc) - This application will communicate to a MT4 EA that will send the information to the desktop application, and it also will receive and execute the commands. - The commands are: a) OPEN COMMANDS (BUY, SELL, BUY STOP, etc) b) CLOSE COMMANDS. (CERRAR means CLOSE in spanish) Here he have the normal close commands (CLOSE BUY, CLOSE SELL, CLOSE PENDINGS, etc), a close command by symbol, and 3 close commands by profit/loss (CLOSE in EURUSD when PROFIT>100€, when PROFIT>10%, when LOSS>10% - The RTR PLATINUM button it's not really a button, it's just the logo place. The box of Stop and Take profit will have only three options on each side: Points, Last Candle and Trailing Stop (on Stops side) and Points, Money and Profit BE on Profits side. We plan to sell it, it would be also a requirement to have a setup system, and a license key system or similar, maybe with the possibility of having a trial period. It is not needed to have a sophisticated license system, just something to allow free download with a trial period, and a license key to make it permanent after payment.