APTR buffer = hw_GetVirtualWriteFileBuffer(APTR handle, ULONG *size, struct hwTagList *tags);
buffer. The size of that memory buffer will be written to
size. Note that the buffer size isn't necessarily identical to the virtual file's current file size. It will typically be larger.
Note that writable virtual files must never be used in your ClosePlugin() function because at that time the handler that controls writable virtual files inside Hollywood will no longer be there.
ULONGthat will receive the virtual file's memory buffer size