Installing Custom I/O Procedures
To install an I/O procedure associated with the .ARC filename extension, use
function as follows:
mmioInstallIOProc (mmioFOURCC('A', 'R', 'C', ' '),
When you install an I/O procedure using mmioInstallIOProc
, the procedure remains installed until you remove it. The I/O procedure is
used for any file you open as long as the file has the appropriate filename
You can also temporarily install an I/O procedure by using the mmioOpen
function. In this case, the I/O procedure is used only with a file opened by
and is removed when the file is closed by using the mmioClose
function. To specify an I/O procedure when you open a file by using mmioOpen
, use the lpmmioinfo
parameter to reference an MMIOINFO
structure as follows:
- Set the fccIOProc member to NULL.
- Set the pIOProc member to the procedure-instance address of the I/O procedure.
- Set all other members to zero (unless you are opening a memory file, or
directly reading or writing to the file I/O buffer).
Be sure to remove any I/O procedures you have installed before you exit your
- Software for developers
Software for Android Developers
- More information resources
Unix Manual Pages