Function gdk_pixbuf_sys::gdk_pixbuf_add_alpha
source ยท pub unsafe extern "C" fn gdk_pixbuf_add_alpha(
pixbuf: *const GdkPixbuf,
substitute_color: gboolean,
r: c_uchar,
g: c_uchar,
b: c_uchar,
) -> *mut GdkPixbuf