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Fix assertion in MIDI prefs when there are no devices

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This commit is contained in:
Paul Licameli 2017-03-31 13:02:57 -04:00
parent 8928bd4d7b
commit a1b88fe8d6
1 changed files with 3 additions and 1 deletions
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4
src/prefs/MidiIOPrefs.cpp
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@ -175,8 +175,10 @@ void MidiIOPrefs::PopulateOrExchange( ShuttleGui & S ) {
void MidiIOPrefs::OnHost(wxCommandEvent & e)
{
wxString itemAtIndex;
int index = mHost->GetCurrentSelection();
wxString itemAtIndex = mHostNames.Item(index);
if (index >= 0 && index < mHostNames.Count())
itemAtIndex = mHostNames.Item(index);
int nDevices = Pm_CountDevices();
if (nDevices == 0) {