> No you got an error. 0, or FALSE, means "error" which you can read in the > documentation for the function: > > http://developer.gimp.org/api/2.0/libgimp/libgimp-gimpdrawable.html#gimp-drawable-set-pixel Now I see =) And now I get my red pixel as I wanted =) gboolean s; guint8 pixel[] = { 0xff, 0, 0, 0xff }; s = gimp_drawable_set_pixel (layer, 5, 5, 4, (guint8 *)pixel ); printf ("Was the pixel set?: %i", s); Full source at http://pastebin.com/m35f95e3e > There you can also read that the num_channels parameter shall be the "The > number of channels for the pixel.". You try to pass the number of bits, 24. > Even that is wrong since you create the layer with an alpha channel, so the > correct wrong thing to pass would be 32. The thing is, what I would really like is to be able to plot 16bit (doubles), but I can't figure out, how to put that in, when in my case, pixel[], is guint8. So if I set bpp to 32, and I have a 16bit value. How should I put that in? _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
