> when I change layer's opacity, I hope all content in the > layer (background image or window content) will change > their opacity after calling layer->SetOpacity()
This is how it should work if the display layer properly supports DLCAPS_OPACITY, and the display layer is configured to use the opacity. >Can any one tell what's wrong from following code? I believe that with DFB 1.0.1 it's possible to call IDirectFBDisplayLayer::SetOpacity even if it is not supported by the display layer, so make sure to get the description and see if the DLCAPS_OPACITY capability flag is set. If it is set, you must then request that the global/constant opacity is used by calling SetConfiguration and specifying the DLOP_OPACITY flag (don't forget to set DLCONF_OPTIONS to indicate there's a valid value in the options field). Regards, Timothy -- Timothy Strelchun CE Software Engineering Digital Home Group Intel Corporation The views expressed above are my own and not those of Intel _______________________________________________ directfb-users mailing list directfb-users@directfb.org http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users