How to disable a hotkey only if the active window is a given size?

Question

I want to disable Shift only if the active window is 500px wide and 300px tall, how to write such a script?

Answer 1

Very easily doable with a context sensitive hotkey with #If^(docs).

#If, SizeCheck()
RShift::
LShift::return
#If

SizeCheck()
{
    WinGetPos, , , width, height, A
    return width == 500 && height == 300
}

Be sure to add the * modifier^(docs) as you see fit.