RButtonDown – PB Docs 2018

flags

UnsignedLong by value. The modifier keys and mouse
buttons that are pressed. The flags value is the sum of the values
for all the pressed keys and buttons.

Key and button
values are:

In the RButtonDown event, the right mouse
button is always pressed, so 2 is always summed in the value of
flags.

For information on evaluating the flags value,
see Syntax 2 of MouseMove in the PowerScript
Reference.

xpos

Integer by value. The distance of the pointer from
the left edge of the window’s workspace in pixels.

ypos

Integer by value. The distance of the pointer from
the top of the window’s workspace in pixels.