hi, as you note, you can indeed convert the pixmap to a pixbuf using the following: GdkPixbuf *pixbuf = gdk_pixbuf_get_from_drawable(NULL, pixmap, NULL, 0, 0, 0, 0, -1, -1); since a pixmap is a drawable. richard On Dec 27, 2006, at 12:10 AM, David L wrote: >> >> gdk_pixbuf_save (pixbuf, save_filename, "png", &error, NULL); >> >> For more detail see: >> >> http://developer.gimp.org/api/2.0/gdk-pixbuf/gdk-pixbuf-file- >> saving.html > > Dov, > > Thanks for the response. That looks something like what I'm looking > for. The reason that I didn't find that documentation was that I > was looking > for a function that worked on a GdkPixmap... the documentation that > you > showed me was for GkkPixbuf. > > http://developer.gimp.org/api/2.0/gdk-pixbuf/gdk-pixbuf-file- > saving.html > vs > http://developer.gnome.org/doc/API/gdk/gdk-bitmaps-and- > pixmaps.html#GDKPIXMAP > > I don't yet know the difference between gdkpixmap and gdkpixbuf, but > presumably there is a conversion function between the two.? Neither > page I'm looking at mentions the other. > > Somebody on the cairo list gave me another potential solution to my > problem. I can get a cairo_surface_t from a cairo_t by calling: > > cairo_surface_t* cairo_get_target (cairo_t *cr); > > and then call: > cairo_status_t cairo_surface_write_to_png (cairo_surface_t *surface, > const char *filename); > > I haven't tried this yet, but since I'm using cairo to create the > gdkpixmap, > this will probably work for me. However, the function you pointed > me to > would be more general because it doesn't require cairo. For the sake > of somebody who googles this thread someday, can somebody post > how to convert between GdkPixbuf and GdkPixmap? I found this > function: > > GdkPixbuf *gdk_pixbuf_get_from_drawable(GdkPixbuf *dest, > GdkDrawable *src, GdkColormap *cmap, int src_x, int src_y, > int dest_x, int dest_y, int width, int height); > > Is that how one would convert from a GdkPixmap to a GdkPixbuf? > > Thanks, > > David > > >> > > >> Regards, >> Dov >> >> On 12/15/06, David L <idht4n@xxxxxxxxxxx> wrote: >>> Hi, >>> >>> I'm using cairo to create a GdkPixmap that I display in a >>> gtk drawing area. I'd like to create a graphics file with the >>> content of the pixbuf when I click on the drawing area. Is >>> there a simple function to create some kind of graphics >>> file from a GdkPixmap? I've thought of just drawing >>> everything twice, once into the pixmap and once into a >>> cairo_surface_t structure and then using cairo's surface >>> to file export functions to create the file, but that seems >>> pretty wasteful because I'd be drawing every object twice. >>> So is there any function that I can call like this: >>> >>> GdkPixmapWriteToPng(GdkPixmap *, >>> const char *filename); >>> >>> Thanks... >>> >>> David >>> >>> _________________________________________________________________ >>> View Athlete's Collections with Live Search >>> http://sportmaps.live.com/index.html? >>> source=hmemailtaglinenov06&FORM=MGAC01 >>> >>> >>> >>> _______________________________________________ >>> gtk-list mailing list >>> gtk-list@xxxxxxxxx >>> http://mail.gnome.org/mailman/listinfo/gtk-list >>> >>> >>> > > _________________________________________________________________ > Dave vs. Carl: The Insignificant Championship Series. Who will > win? http://clk.atdmt.com/MSN/go/msnnkwsp0070000001msn/direct/01/? > href=http://davevscarl.spaces.live.com/?icid=T001MSN38C07001 > > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > http://mail.gnome.org/mailman/listinfo/gtk-list _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
