[cairo] Drawing into a memory block

[John Ellson]

Jonathan Roewen wrote:

>Hi,
>
>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
>drawn.
>
>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
>http://lists.freedesktop.org/mailman/listinfo/cairo
>
>  
>


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.

John