File::ReadFile

Reads data from a file.

FileResult ReadFile(void *buffer, uint32 size);

buffer	A pointer to the location that will receive the data read from the file.
size	The number of bytes to read from the file.

The ReadFile function attempts to perform a synchronous read operation for a file object. If successful, this function blocks until the read operation completes. The return value is one of the following file result codes.

kFileOkay	The read operation was successfully completed.
kFileNotOpen	No file has been opened for the File object.
kFileIOFailed	The operation failed because the operating system returned an error.

File::WriteFile