The midiConnect function connects a MIDI input device to a MIDI thru or output device, or connects a MIDI thru device to a MIDI output device.
MMRESULT midiConnect( HMIDI hmi, HMIDIOUT hmo, LPVOID pReserved );
Handle to a MIDI input device or a MIDI thru device. (For thru devices, this handle must have been returned by a call to the midiOutOpen function.)
Handle to the MIDI output or thru device.
Reserved; must be NULL.
Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following.
||Specified input device is already connected to an output device.|
||Specified device handle is invalid.|
After calling this function, the MIDI input device receives event data in an MIM_DATA message whenever a message with the same event data is sent to the output device driver.
A thru driver is a special form of MIDI output driver. The system will allow only one MIDI output device to be connected to a MIDI input device, but multiple MIDI output devices can be connected to a MIDI thru device. Whenever the given MIDI input device receives event data in an MIM_DATA message, a message with the same event data is sent to the given output device driver (or through the thru driver to the output drivers).
|Minimum supported client||Windows 2000 Professional [desktop apps only]|
|Minimum supported server||Windows 2000 Server [desktop apps only]|
|Header||mmeapi.h (include Windows.h)|