[cairo] Drawing into a memory block

John Ellson ellson at research.att.com
Thu Apr 14 04:27:42 PDT 2005

Jonathan Roewen wrote:

>How do I get cairo to draw into a block of memory representing my
>linear frame buffer?
>I'm trying to get one of the snippets to draw into the memory and have
>it displayed onscreen (without buffering), but nothing appears to be
>The function I'm using to create the surface is:
>cairo_image_surface_create_for_data(gfx_info->video_base, ....); where
>video_base is pointer to LFB.
>However, I'm having trouble finding exactly what I need in the
>documention, so I'm not sure where I'm going wrong...
>Kindest Regards,
>Jonathan Roewen
>cairo mailing list
>cairo at cairographics.org

Are you having the same problem that I had.  That "_for_" in the API 
names really means "_from_" ?

This function is (I suspect) for reading from memory data;  not to set 
up for output to  memory.


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