On 19 Mar 2012, at 17:43, Edzard Egberts wrote: > >> If you do go the offscreen route, the "solution" is to make the >> offscreen current then use fl_read_image(...); to get the raw data. > > There is no image, until now the software used only libfltk. For > creation of my plot-image I need to include libjpeg/libpng.
Sorry Edzard, you are still not understanding me... What I am trying to say is that if you draw all the things you want to capture, into the fl_offscreen, then you can use fl_read_image() to get a pointer to the raw offscreen data, that you can then write out to a PNG or etc. > Which fltk format can I use to get fl_offscreen data? By function I only > found a copy to screen. Did you look at the earlier post I referred you to? Once you have drawn your scene into the offscreen, you can just do... fl_begin_ofscreen(offs); char *data = fl_read_image(....); fl_end_offscreen(); png_write(data, ...); etc. That is what you were asking for, I think? _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
