mcisendstring — sends a command string to an MCI device (Windows only).
mcisendstring(mcistring) bOK=mcisendstring(mcistring) [bOK,CodeError]=mcisendstring(mcistring) [bOK,CodeError,StringError]=mcisendstring(mcistring)
a command string to send to an MCI device
returns %T or %F
returns error code (0 --> if bOK == %T)
returns MCI interpreter message ('OK' --> if bOK == %T)
The mciSendString primitive sends a command string to an MCI device. The device that the command is sent to is specified in the command string.
see on http://msdn.microsoft.com/library/default.asp and search "Windows Multimedia SDK open"