Sets the given button's label offset coordinates. Use this function to reposition the label within the button, or outside of the button. If positioning outside of the button's body, you should probably turn off the label's scaling effect when the button is pressed. Use the PRVirconBtnSetLabel function to do so.
PRVirconBtnSetLabelOffset(btnId, xOffset, yOffset) 
The button ID.
The x-offset of the label sprite from the center of the button.
The y-offset of the label sprite from the center of the button.
n/a