| Platform SDK: Files and I/O |
The following functions are used with file systems.
| Function | Description |
|---|---|
| CreateHardLink | Establishes an NTFS hard link between an existing file and a new file. |
| GetCompressedFileSize | Retrieves the actual number of bytes of disk storage used to store a specified file. |
| GetDiskFreeSpace | Retrieves information about the specified disk, including the amount of free space on the disk. |
| GetDiskFreeSpaceEx | Retrieves information about the specified disk, including the amount of free space on the disk. |
| GetFileSize | Retrieves the size of a specified file. |
| GetFileSizeEx | Retrieves the size of a specified file. |
| GetLogicalDrives | Returns a bitmask representing the currently available disk drives. |
| GetLogicalDriveStrings | Fills a buffer with strings that specify valid drives in the system. |
| GetVolumeInformation | Retrieves information about a file system and volume. |
| SetVolumeLabel | Sets the label of a file system volume. |
The following functions are used with the encrypted file system.
| Function | Description |
|---|---|
| AddUsersToEncryptedFile | Adds user keys to a specified encrypted file. |
| DecryptFile | Decrypts an encrypted file or directory. |
| EncryptFile | Encrypts a file or directory. |
| EncryptionDisable | Disables or enables encryption of the indicated directory and the files in it. |
| FileEncryptionStatus | Retrieves the encryption status of the specified file. |
| FreeEncryptionCertificateHashList | Frees a certificate hash list. |
| QueryRecoveryAgentsOnEncryptedFile | Retrieves a list of recovery agents for the specified file. |
| QueryUsersOnEncryptedFile | Retrieves a list of users for the specified file. |
| RemoveUsersFromEncryptedFile | Removes specified certificate hashes from a specified file. |
| SetUserFileEncryptionKey | Sets the user's current key to the specified certificate. |
The following functions are used with volume mount points.
| Function | Description |
|---|---|
| DeleteVolumeMountPoint | Unmounts the volume from the specified volume mount point. |
| FindFirstVolume | Returns the name of a volume on a computer. |
| FindFirstVolumeMountPoint | Returns the name of a volume mount point on the specified volume. |
| FindNextVolume | Continues a volume search started by a call to FindFirstVolume. |
| FindNextVolumeMountPoint | Continues a volume mount point search started by a call to FindFirstVolumeMountPoint. |
| FindVolumeClose | Closes the specified volume search handle. |
| FindVolumeMountPointClose | Closes the specified mount-point search handle. |
| GetVolumeNameForVolumeMountPoint | Takes a volume mount point or root directory and returns the corresponding unique volume name. |
| GetVolumePathName | Returns the volume mount point at which the specified path is mounted. |
| SetVolumeMountPoint | Mounts the specified volume at the specified volume mount point. |