Apps Change brightness in Donut

[kaloer]

Hi there,

I am updating my application to Android 1.6 Donut. On Donut, I can't change the screen brightness from my application anymore. On Cupcake it works, and I do it this way:

LayoutParams lp = getWindow().getAttributes();  
lp.screenBrightness = 0.2f; 
getWindow().setAttributes(lp);

Has this function been removed or replaced in Donut? Or do I need a permission to change it? Or does it still work for you?

Thank you very much,
Kaloer