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API > API/Plugins > API/Plugins/HarmonixMidi > API/Plugins/HarmonixMidi/UMidiFile
Description
This function must be called if any changes are made to any of the tracks of this midi file. It will do various internal tasks necessary to assure the midi data is consistent and "playable".
| Name | ScanTracksForSongLengthChange |
| Type | function |
| Header File | /Engine/Plugins/Runtime/Harmonix/Source/HarmonixMidi/Public/HarmonixMidi/MidiFile.h |
| Include Path | #include "HarmonixMidi/MidiFile.h" |
| Source | /Engine/Plugins/Runtime/Harmonix/Source/HarmonixMidi/Private/HarmonixMidi/MidiFile.cpp |
void ScanTracksForSongLengthChange()