Invalid cast in ml_gdk_pixbuf_get_pixels causes segfault

[tleedjarv]

lablgtk/src/ml_gdkpixbuf.c

Line 148 in afbd6d2

long pixels = (long)gdk_pixbuf_get_pixels (GdkPixbuf_val(pixbuf));

is an invalid cast from pointer to long. This causes a segfault on Win64 (at least) where long is a 32-bit type.

It seems to me that the calculation and use of ofs (the apparent reason of the cast above) may not be needed at all.