Bug in Raspberry related to brightness in SDL2! - Raspberry Pi Forums

hi,
i’m trying change brightness in sdl2 , there no effect @ all.
there example of method i’m using:
sdl_setwindowbrightness(window, 0.1); // there no difference in brightness between 0.1 , 1.0
function returns 0 – function supported.

i’m trying function : sdl_setwindowgammaramp, result same.
here on forum can test please: sdl_setwindowbrightness ?
function: sdl_settexturecolormod , similar functions works perfect.

serious bug related to:
http://www.raspberrypi.org/forums/viewt ... 3&t=100410
or haven’t installed sdl2 correctly.

despite name , signature, method sets brightness of entire display, not individual window. window considered owned display contains window's center pixel. (the index of display can retrieved using sdl_getwindowdisplayindex().) brightness set not follow window if moved display.

hope don't intend create topic every bit of software doesn't work with. has been established in earlier thread linked, isn't supported feature.

raspberrypi