gtk/gtk.go
func GdkCairoSetSourcePixBuf(cr *cairo.Context, pixbuf *gdk.Pixbuf, pixbufX, pixbufY float64) {
	context := (*C.cairo_t)(unsafe.Pointer(cr.Native()))
	ptr := (*C.GdkPixbuf)(unsafe.Pointer(pixbuf.Native()))
	C.gdk_cairo_set_source_pixbuf(context, ptr, C.gdouble(pixbufX), C.gdouble(pixbufY))
}
func GdkCairoSetSourcePixBuf(cr *cairo.Context, pixbuf *gdk.Pixbuf, pixbufX, pixbufY float64) {
	context := (*C.cairo_t)(unsafe.Pointer(cr.Native()))
	ptr := (*C.GdkPixbuf)(unsafe.Pointer(pixbuf.Native()))
	C.gdk_cairo_set_source_pixbuf(context, ptr, C.gdouble(pixbufX), C.gdouble(pixbufY))
}
// GdkCairoSetSourcePixBuf() is a wrapper around gdk_cairo_set_source_pixbuf().