[cairo] png streams

[Carl Worth]

On Thu, 16 Feb 2006 02:29:40 +0200, wrote:
>
>   I'm new to cairo so I have one little question :)

Welcome!

> cairo_status_t output (void *closure, unsigned char *data, unsigned int length)

Try changing that to:

  cairo_status_t output (void *closure, const unsigned char *data, unsigned int length)

> graph.c:85: warning: passing argument 2 of 'cairo_surface_write_to_png_stream'
> from incompatible pointer type

and that should go away.

Have fun with cairo!

-Carl
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