WMid As Integer ' Manufacturer identifier of the device driver for the MIDI output device 'User-defined variable the stores information about the MIDI output device. Public Const MIDIERR_BADOPENMODE = (MIDIERR_BASE + 6) ' operation unsupported w/ open mode Public Const MIDIERR_NOTREADY = (MIDIERR_BASE + 3) ' hardware is still busy Public Const MIDIERR_STILLPLAYING = (MIDIERR_BASE + 1) ' still something playing Public Const MMSYSERR_INVALHANDLE = (MMSYSERR_BASE + 5) ' device handle is invalid Public Const MMSYSERR_NOMEM = (MMSYSERR_BASE + 7) ' memory allocation error Public Const MMSYSERR_NODRIVER = (MMSYSERR_BASE + 6) ' no device driver present Public Const MMSYSERR_INVALPARAM = (MMSYSERR_BASE + 11) ' invalid parameter passed Public Const MMSYSERR_BADDEVICEID = (MMSYSERR_BASE + 2) ' device ID out of range ![]() ' Error values for functions used in this sample. ![]() Public Const MAXPNAMELEN = 32 ' Maximum product name length
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