Coding support/ resistance using mql4 language

External question — Stack Overflow Stack Exchange Author: Stanley Omeje Original post: https://stackoverflow.com/questions/64873379 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. Pls what step should I apply in writing a code that can draw support and resistance level in a chart using mql4

External answer — Stack Overflow Stack Exchange Author: Enivid Original post: https://stackoverflow.com/a/65039483 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. You achieve drawing a support or resistance line by creating an OBJ_HLINE type graphical object at some given price. Here is an example: ObjectCreate(0, "Support1", OBJ_HLINE, 0, 0, Price); where Support1 is just some text name, and Price is some price level.