static size_t write_image_data_cb(void *ptr, size_t size, size_t nmemb, void *stream)
{
size_t written = claws_fwrite(ptr, size, nmemb, (FILE *)stream);
static size_t write_image_data_cb(void *ptr, size_t size, size_t nmemb, void *stream)
{
size_t written = claws_fwrite(ptr, size, nmemb, (FILE *)stream);