Handheld devices as the Compaq iPaq are
very suitable for MIDI applications.
Since these devices usually have serial
ports the MidiLink MIDI interface is a nice
solution. MidiLink can be connected by
using a serial port sync cable + a "null"-
modem or with a RS-232 cable from the
manufacturer of the handheld.
The prefered way to access external MIDI
devices in a Windows system is by
using standard installable drivers. Unfortunately
there are no concept of installable
MIDI drivers in WindowsCE 3.0.
In order to overcome this problem we offer
C++
interface classes to help developers to
access
the MidiLink MIDI interface. The intention
is that
these C++ classes should be used by developers
creating new MIDI applications for Windows
CE.
These classes support:
- Full duplex MIDI.
- System Exclusive messages.
- Running Status.
These classes are tested on the Compaq
iPaq
runing PocketPC2002.
The classes use the Windows CE serial port
API
and provide a convenient way to access
the
MidiLink hardware. For programming you
will
need the MIDI specification and you should
also
be aware of that the classes may need
modi-
fications depending on your application.
- CMidiLink, a class for initialisation
and low-level
MIDI handling.
Further info in the header file.
- CMidi, uses the CMidiLink class in order
to send
and receive complete MIDI-messages.
The developer is supposed to implement
the methods
UserClass::OnReadShortMsg()
UserClass::OnReadLongMsg()
Further info in the header file.
