well that means the surface is already locked .. u must unlock each Lock
after usage
1. Lock
2. use the pointer
3. UnLock
On Wed, Dec 22, 2010 at 4:31 PM, ravi <ravi...@gmail.com> wrote:
> Hell,
> i have a function to implement that returns a pointer to an
> array of pixels representing the
> pixels in the specified row of the surface columns from x (inclusive) to x
> + w
> (exclusive), I implemented it like this......
>
> { void *data;
> int pitch;
> surface->Lock(surface, DSLF_READ, &data, &pitch );
>
> return (pointer *)data + pitch*row;
>
> }
>
> running this function is aborting the program with this message......
>
> DirectFBError [>surface->Lock( surface, (DFBSurfaceLockFlags)(DSLF_READ |
> DSLF_WRITE), &data, &pitch )]: Resource is locked!
>
>
>
> --
> Regards
>
> Ravi Swami
> EnMedia Software Technologies
> Ph +91-974-264-3747
>
> _______________________________________________
> directfb-users mailing list
> directfb-users@directfb.org
> http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
>
>
--
Sriram Neelakandan
Author - Embedded Linux System Design And Development (
http://tinyurl.com/2doosu)
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