API GetCurrentResolution

__NOTOC__
Returns the index of the current screen resolution.
 index = GetCurrentResolution()
===Takes===
: Nothing
===Returns===
: Number index
:: This value will be the index of one of the values yielded by GetScreenResolutions()
===Example===
 message('The current screen resolution is ' .. ({GetScreenResolutions()})[GetCurrentResolution()])
Output:
 The current screen resolution is 1024x768