The indicator stores the tick from the terminal to an array. The type of the received ticks can be specified in the parameters:

Next, the tick array is displayed on the screen. During that the tick flag is displayed:

• TICK_FLAG_BID — the tick changed the Bid price;
• TICK_FLAG_ASK — the tick changed the Ask price;
• TICK_FLAG_LAST — the tick changed the price of the latest trade;
• TICK_FLAG_VOLUME — the tick changed the volume;
• TICK_FLAG_BUY — the tick appeared as a result of a buy trade;
• TICK_FLAG_SELL — the tick appeared as a result of a sell trade;