Format: s32 mfsHMediaCheck(s32 flag)
Arguments: None
Return value:Error
Function: Checks medium
Description: This function checks the status of the drive's medium. It reads the DISK-ID and compares it to determine whether or not the medium has been exchanged. If the medium has been exchanged, this function makes all file handles unavailable, sets the current directory to root, and returns MFS_ERR_DISKCHANGE.
Main errors:
MFS_ERR_NO Normal termination MFS_ERR_DEVICE Device error An error occurred in an internally called Leo function. Since a Leo function error is stored in the variable mfsError, check this variable to perform processing. MFS_ERR_DISKCHANGE Media exchanged The media has been replaced by another media. If a file is opened, close it and begin the process for opening the file again. MFS_ERR_NOTMFSDISK Not an MFS-format disk The disk ID's disk use is not 1. MFS_ERR_VERSION Different version disk MFS_ERR_HEADER Header error The header area is corrupted. If it is the RAM area, try to repair it.