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我使用MIKMIDI发送组合的NRPN命令。我试图发送这种风格MIKMIDI NRPN命令创建
B9H 63H 40H || B9H 62H 64H || B9H 06H 7FH (hex)
这是一个NRPN
B9 99 64 || B9 98 100 || B9 06 127 (dec)
我尝试创建这样
// create the MSB and LSB command
MIKMutableMIDIControlChangeCommand *msb = [[MIKMutableMIDIControlChangeCommand alloc] init];
msb.channel = 9;
msb.controllerNumber = 99;
msb.controllerValue = 64;
MIKMutableMIDIControlChangeCommand *lsb = [[MIKMutableMIDIControlChangeCommand alloc] init];
lsb.channel = 9;
lsb.controllerNumber = 98;
lsb.controllerValue = 100;
// compose the full command
cmd = [MIKMutableMIDIControlChangeCommand commandByCoalescingMSBCommand:msb andLSBCommand:lsb];
cmd.channel = 9;
cmd.controllerNumber = 6;
cmd.controllerValue = 127;
但它返回一个零指针。
我在做什么错了?
是的。我读过。但我认为我可以用这个命令来做NRPNs。好的,将单独完成所有3个命令。谢谢 –