[SDL] The perfect transparent surface. ( Improved question )

[Miguel Pragier]

My intention is to create the invisible surface, and, over this, to blit.
Is the same as draw over a transparent paper. :-)



2007/11/6, Alberto Luaces <aluaces at udc.es>:
>
> El Tuesday 06 November 2007 13:04:20 Miguel Pragier escribió:
> > > Every mask is the binary mask that specify where its colour component
> is
> > > stored.
> > >
> > >
> > > surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32,
> > > rmask, gmask, bmask, amask);
> > >
> > > What do you mean by 100% transparent? Invisible?
> >
> > Yes. Invisible.
>
> Sorry if I do not fully understand you, but if you are going to blit an
> invisible surface, why bother to try to display it at all?
>
> > I'm going to try some masks combinations.
>
> If you are using Windows your pixel format will be tipically RGBA, 8 bits
> for
> every of the four components, stored in little endian format. However it
> is
> better to do as the example shown in the documentation and mind the
> endianess
> of your system.
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