Change the colour of a GUI Edit box via 3 separate RGB sliders in AutoHotKey

ChangeGUIColour.ahk

#SingleInstance force
SetFormat, integer, hex
Gui, Add, Slider , x12 y19 w90 h20 vPipboyRed gSetColour Range0-255, 128
Gui, Add, Slider, x12 y59 w90 h20 vPipboyGreen gSetColour Range0-255, 128
Gui, Add, Slider, x12 y99 w90 h20 vPipboyBlue gSetColour Range0-255, 128
gosub,SetColour ;Set the default colour to what's defined above.
Gui, Add, Edit, x112 y19 w120 h100
Gui, Show, h147 w247
SetFormat, integer, d
Return

SetColour:
	SetFormat, integer, hex
	gui,submit,nohide
	PipboyRed := GetHexGUIColour(PipboyRed)
	PipboyGreen := GetHexGUIColour(PipboyGreen)
	PipboyBlue := GetHexGUIColour(PipboyBlue)
	Gui, Color,, %PipboyRed%%PipboyGreen%%PipboyBlue%
	tooltip Red:%PipboyRed%`nGreen:%PipboyGreen%`nBlue:%PipboyBlue%
	return
	
GuiClose:
ExitApp

GetHexGUIColour(InputNumber) ;Converts "0x0F" to "0F" and "1" to "01"
{
	InputNumber := strreplace(InputNumber,"0x")
	if StrLen(InputNumber) = 1
		return "0" . InputNumber
	else
		return InputNumber
}