The following table shows three fields in the MMIOINFO structure used for reading from and writing to the file I/O buffer.
旼컴컴컴컴컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿑ield 쿏escription � 쳐컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �pchNext 쿛oints to the next location in the buffer to � � 퀁ead or write. You must increment pchNext as� � 퀉ou read and write the buffer. � 쳐컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �pchEndRead 쿔dentifies the location containing the last � � 퀆alid character you can read from the buffer.� � 쿟his is the memory location following the � � 쿹ast valid data in the buffer. � 쳐컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �pchEndWrite 쿔dentifies the last location in the buffer � � 퀉ou can write to. This is the memory � � 쿹ocation following the end of buffer. � 읕컴컴컴컴컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�