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[directfb-users] Re: nvidia-setOpacity
On Fri, Feb 13, 2004 at 01:11:22AM -0800, vivek wrote: > --- Ville Syrjälä <firstname.lastname@example.org> wrote: > > On Thu, Feb 12, 2004 at 09:44:19PM -0800, vivek > > wrote: > > > Hi.. > > > I am using nvidia RIVA TNT2 chipset. > > > In the driver ,there is a SetOpacity in > > > Overlay structure but whenever opacity value is > > > changed in the application, that > > nv_ov0_SetOpacity () > > > function is not getting called. Why it is like > > that ? > > > > The only reasons I can think of is that you don't > > have admimistrative or > > exclusive access to the layer, or the opacity value > > didn't actually > > change. But the overlay doesn't support variable > > opacity values (only > > 0/255) so calling it with any value in between isn't > > exactly useful. > > How can I get the administrative access ? IDirectFBDisplayLayer::SetCooperativeLevel() > I tried by > scrolling the mouse wheel to change the opacity.. > so , at the point of 255, it might go into that > SetOpacity () function.. I gave printf statement there > to track it. That is never get printed. > > For opacity value '0', it wont go inside, due to the > default opacity value of '8', but i expected that, it > should display the printf comments, while the opacity > is at 255. Its not printing. > > I am using the gtk examples to check this. Is it > using any other different layers ? could you > please explain me ? Well I don't know what the gtk examples do exactly but you are probably changing window opacity not layer opacity. Windows are contained in layers. -- Ville Syrjälä email@example.com http://www.sci.fi/~syrjala/ -- Info: To unsubscribe send a mail to firstname.lastname@example.org with "unsubscribe directfb-users" as subject.