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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