How do I display static text on a chart?

I know I can create text using the ObjectCreate() function. but I need to provide a price/time coordinates, which means the text is stuck to the bars and moves when we scroll it.

I just want to have some text in a fixed position at the corner of the chart

Using the OBJ_LABEL type with ObjectCreate will do what you want. I think you must of tried OBJ_TEXT.