Hi Deepak,

Welcome to DirectFb.

Here by i am sending the link that you can use to go through the API
reference:-
http://www.directfb.org/docs/DirectFB_Reference/

For changing the Apha you can use the Setcolor api in loop, with varying
Alpha.

Regards
Animesh.

On Tue, Aug 26, 2008 at 12:27 PM, Deepak Mundra <[EMAIL PROTECTED]>wrote:

> Hi im new to directfb and want to learn so many thongs from u people, ok i
> could cross compile dfb and run examples .. Now i want to learn creating
> simple directfb application . so i have some questions for you people
>
> 1] is only primary layer used to dsplay on srceen ? i mean to ask
>
>    i have displayed a image one image on primary layer , now i wanto
> display another image on another layer say secondary
>      and tempsurf is actual temp surface
>
>       secondary->Blit( secondary, tempsurf, NULL, 0,0 );
>      // primary->Flip( primary, NULL, DSFLIP_NONE );
>       secondary->Flip(secondary, NULL, DSFLIP_NONE );
>
> but sreen is black .. it is not displaying image .. flags for creating
> secondary
>
>       sdsc.flags       = DSDESC_CAPS | DSDESC_PIXELFORMAT | DSDESC_WIDTH |
> DSDESC_HEIGHT;
>       sdsc.caps        = DSCAPS_PREMULTIPLIED;
>       sdsc.pixelformat = DSPF_ARGB;
>       sdsc.width       = screen_width;
>       sdsc.height      = screen_height;
>
>
> 2] I have a transparent image .. i am able to display that transparent
> image but how can i change the transparency( 0% to 100%) value? i could not
> search any api .. please help me ..
>
>
> 3]is there any documents to read about directfb layers/surface
>
> Thanks
>
>
> _______________________________________________
> directfb-users mailing list
> directfb-users@directfb.org
> http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
>
>


-- 
Regards,
Animesh Bhadra,
+91-9880868571
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