| Namespace | Windows.Devices.Midi2.Utilities.Messages |
|---|---|
| Type Name | MidiSystemExclusive7MessageBuilder |
| Type | WinRT Runtime Class |
| IDL | MidiSystemExclusive7MessageBuilder.idl |
This class is the partner of MidiSystemExclusive7MessageHelper, which puts back together what this class splits up.
The data is the bytes between the 0xF0 and 0xF7 markers, not the markers themselves. Each UMP packet’s own status says where a message starts and ends, so the markers aren’t sent.
Every byte must be a 7-bit value. If any byte has its high bit set, you get back an empty list, not a message with that bit removed, because quietly changing data is worse than refusing to send it.
| Static Method | Description |
|---|---|
BuildSystemExclusive7Messages(timestamp, group, dataBytes) |
Returns the UMP messages that carry this data, in the order they must be sent. Returns an empty list if any byte isn’t a 7-bit value |
GetMessageCountForDataByteCount(dataByteCount) |
How many packets data of this size needs, without building anything. Empty data is still one packet, because it’s a complete (empty) System Exclusive message |
| Static Property | Description |
|---|---|
MaxDataBytesPerMessage |
How many data bytes one packet holds: six |
Windows MIDI Services is an open source project with all source available on GitHub. We have a great community on Discord as well. Between GitHub and Discord, you should find the information you are looking for.
