[cairo] How to put RGB(A) data on a cairo context?

[Carl Worth]

On Wed, 15 Feb 2006 16:33:44 +0100, Lutz Müller wrote:
> 
> I am wondering how to put RGB(A) data on a cairo context? Take a text
> document with a picture embedded. How do I draw that picture on the
> cairo context?

First, you'll need to get a surface that contains the data of
interest. See:

	cairo_image_surface_create_for_data

Once you've got that, it's a fairly simple matter to paint it at
user-space position (x, y):

	cairo_set_source_surface (cr, data_surface, x, y);
	cairo_paint (cr);

-Carl
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