Vertical Slider Camera

Hello, I am writing a camera script that uses the VerticalSlider GUI to rotate about the world Y axis. i know the VSlider returns a float type value which is how i am controlling the direction in which the camera rotates (ie. if the value ranges from 0.0 to 100.0, when the value is equal or less than 35.0, the camera rotates). is there a function to find out if the Vertical Slider BUTTON has been pressed (idealy i would like to imitate the VSlider returning a boolean as well as the standard float value)? i have other buttons in place so i cant use the input.mouseButton.

Is there a function to find out if the Vertical Slider BUTTON has been pressed?

No. You have to create your own GUI logic to do this. The easiest solution candidate I can think of is to use GUI.RepeatButton and move that along with mouse input when it is pressed.

Check the docs about how to extend the GUI to create your own controls.