Change background color of another window

[Haswell]

is there any easy way to change background color of a form of another application?

I need something like this:

Code: Select all

;Set RGB color = 00FF00 (green)
SetBackgroundColor ahk_exe winver.exe, 00FF00

Which should result to:


Looking for any WM-message for that.
Or changing default window color schema, then updating the window color and get the color back.
Or another similar trick.

[colt]

From here https://www.autohotkey.com/board/topic/38731-change-windows-color-themes/ doesnt work for newer apps though

Code: Select all

ButtonText=18
ButtonFace=15
ButtonAlternateFace=25
ButtonLight=22
ButtonHilight=20
ButtonShadow=16
ButtonDkShadow=21
ActiveBorder=10
ActiveTitle=2
GradientActiveTitle=27
TitleText=9
Background=1
GrayText=17
Hilight=13
HilightText=14
HotTrackingColor=26
InactiveBorder=11
InactiveTitle=3
GradientInactiveTitle=28
InactiveTitleText=19
InfoWindow=24
InfoText=23
Menu=4
MenuHilight=29
MenuBar=30
MenuText=7
Scrollbar=0
AppWorkSpace=12
Window=5
WindowFrame=6
WindowText=8 

WHITE = 16777215 ; six digit hex to decimal value used by SetSysColors
BLACK = 0
green := 65280

DllCall("SetSysColors", "Int", 1, "Int*", Window, "UInt*", green )
Run notepad
sleep 2000
DllCall("SetSysColors", "Int", 1, "Int*", Window, "UInt*", White)

[Haswell]

Thanks for a reply!
Unfortunatelly, this command has a drawback preventing me from using it:
- all the windows are affected (no way to change color of a certain window without impact on all others).
So I'm still looking for any other solution.