Re: [gtk-list] Re: double buffering question

[Amit Kumar <amit usc edu>]

hmmm... but the pixmaps A and B are different: A is GdkPixmap, and B
is GtkPixmap, right? is there any way of having B a GdkPixmap too?

i guess one way is to create a blank GdkPixmap, and draw A on
it. which brings me to my second question: how do you find the size of
a pixmap, if all you have is a GdkPixmap *?

i'm guessing you can put it in a window, and try to find the size of
the window.. but, er, is there any better way? <grin>

amit

So said Pedro Medeiros: (Today)

> Amit Kumar wrote:
> > is there any way of copying/cloning/duplicating a pixmap from another
> > one? basically each time i do a redraw, i want to copy 'A' to 'B',
> > then draw the rect, and then redisplay.
> 
>  GdkPixmap *gdkpixmap;
>  GdkBitmap *mask;
>  GtkPixmap *pixmap_B;
> 
>  (...)
> 
>  gtk_pixmap_get (pixmap_A, &gdkpixmap, &mask);
>  pixmap_B = gtk_pixmap_new (gdkpixmap, mask);
> 
> 
> 
>  As long as you want them to look the same, this should
> work.
> 
> --
> Pedro Medeiros.
> 
>