Invert Screen Colors

I did a VB6 program some month ago that was doing your wish , but it is not as good as I would.

I used a Layered Form that stay over all other windows but there is a problem, the Taskbar will always goes on top of all Windows in its zone when you click on it, therefore my Layered Form will always get under Taskbar for a short period of time if you click on it (for a short period because I wrote a loop system in my program).

Well I dont know how PowerStrip does this Color Ramp Invertion, I heard about a Nvidia's Driver Function (NvColorSetGammaRamp()) that can Invert Color of a Display but you must have Nvidia Video Card (I have ATI Video Card thus I couldn't test this function).

There is a Window built-in function called SetDeviceGammaRamp that I though could Invert Color too but this function is only for the Brightness of a display device (such as a screen).

If you want my program, ask me here.

Sorry for my bad english (if it is) , I'm a canadian french guy

I've good experience with program DesktopZoom (3.4)
My configuration is: in the top tab panel choose Entire Desktop.
Zoom tab - 1:1, checked all exept "No screen changes...".
Keys - no change
Mouse - uncheck all
Colors - only Invert Colors
Tracking - all unchecked
Speech - no change

Command+Alt+Control+8

Looking everywhere for the hotkey.
Still can't find it.
I know it exists, cause I have done it on XP a few years back teasing some colleagues.

Exactly the same as the white on black option in mac I mean.

Why on earth can't I find that simple hotkey?

"One method of inverting the colours is using:
Left Alt-Left Shift-Print Screen
Only problem is the resolution...
hope this helps"

thank you this is amazing. perfect. works very well. press the same combo to reverse it

lol that's not inverting your colours... that's merely using a windows theme with black borders and shit

i did this half-way but it works fine on windows 7:

; like on mac os x - ctrl+alt+win (as cmd)+8

^!#8::
Run magnify
Sleep, 10
Send ^!i
return

powerstrip works for me, now it would be nice to selectively invert windows.

maybe with a clickthrough tooltip over each of them ?