RectangleGetBeginPrice
Returns the price value (vertical position, corresponding to a value on the price scale of a chart) of the starting point of a rectangle with the specified ID number; returns a value of -2 if the specified rectangle ID number is invalid.
Of the two end points of a rectangle, the point with the earlier date and time is always considered to be the starting point; if the rectangle is vertical, the point with the lower price value is considered to be the starting point.
Usage
RectangleGetBeginPrice(ID)
Where: ID - a numerical expression specifying the rectangle ID number
Notes
A rectangle-specific ID number is returned by RectangleNew when the rectangle is created.
Example
Assign a value, indicating the price value of the starting point of a rectangle with the ID number of 3, to Value1 variable:
Value1=RectangleGetBeginPrice(3);