A PhysicsFS file handle.
Defined in <physfs.h>
typedef struct PHYSFS_File
{
void *opaque; /**< That's all you get. Don't touch. */
} PHYSFS_File;You get a pointer to one of these when you open a file for reading, writing, or appending via PhysicsFS.
As you can see from the lack of meaningful fields, you should treat this as opaque data. Don't try to manipulate the file handle, just pass the pointer you got, unmolested, to various PhysicsFS APIs.
This struct is available since PhysicsFS 1.0.0.