Simple MIDI Output fails
Simple MIDI Output fails
- Subject: Simple MIDI Output fails
- From: James Wylder <email@hidden>
- Date: Thu, 10 Feb 2005 20:05:13 -0600
I am just trying to send a single note on and off command to the Simple
Synth but something isn't working out. When I run my code, I hear the
note the first time I run it but I have to shutdown the "Simple Synth"
to get it to go again. I also can't seem to ever play two notes.
#include <stdio.h>
MIDIPortRef gOutPort = NULL;
OSStatus my_send(MIDIEndpointRef dest, Byte event, Byte note)
{
MIDIPacketList pktList;
MIDIPacket * pkt = NULL;
Byte data[3];
data[0] = event;
data[1] = note;
data[2] = 0xFF; // Velocity
pkt = MIDIPacketListInit(&pktList);
MIDITimeStamp now = AudioGetCurrentHostTime();
(void) MIDIPacketListAdd(&pktList, sizeof(pktList), pkt, now, 3, data);
return MIDISend(gOutPort, dest, &pktList);
}
OSStatus noteOn(MIDIEndpointRef dest, Byte note)
{
return my_send(dest, 0x90, 60);
}
OSStatus noteOff(MIDIEndpointRef dest, Byte note)
{
return my_send(dest, 0x80, 60);
}
int main(int argc, char * argv[])
{
MIDIClientRef client = NULL;
int destCount = 0;
int i;
MIDIClientCreate(CFSTR("MIDITest"), NULL, NULL, &client);
MIDIOutputPortCreate(client, CFSTR("Outputport"), &gOutPort);
destCount = MIDIGetNumberOfDestinations();
printf("Number of Destinations = %d\n", destCount);
for (i = 0; i < destCount; ++i)
{
MIDIEndpointRef dest = MIDIGetDestination(i);
printf("Sending Note On (Destination %d)\n", i);
if( noteOn(dest, 60) )
{
printf(" failed\n");
}
if (noteOff(dest, 60))
{
printf(" failed\n");
}
}
return 0;
}
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden