create virtual ports only when they are supported by the MidiAccess.

atsushieno · Sep 2, 2024 · f628e55 · f628e55
1 parent 85e1275
commit f628e55
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/ktmidi-ci-tool/src/commonMain/kotlin/dev/atsushieno/ktmidi/citool/MidiDeviceManager.kt b/ktmidi-ci-tool/src/commonMain/kotlin/dev/atsushieno/ktmidi/citool/MidiDeviceManager.kt
@@ -34,9 +34,11 @@ class MidiDeviceManager {
                 midiProtocol = MidiTransportProtocol.MIDI1,
             )
 
-            virtualMidiInput = midiAccessValue.createVirtualOutputReceiver(pcOut)
-            midiInputOpened.forEach { it(virtualMidiInput!!) }
-            virtualMidiOutput = midiAccessValue.createVirtualInputSender(pcIn)
+            if (midiAccessValue.canCreateVirtualPort(pcIn) && midiAccessValue.canCreateVirtualPort(pcOut)) {
+                virtualMidiInput = midiAccessValue.createVirtualOutputReceiver(pcOut)
+                midiInputOpened.forEach { it(virtualMidiInput!!) }
+                virtualMidiOutput = midiAccessValue.createVirtualInputSender(pcIn)
+            }
 
             if (!midiAccessValue.supportsUmpTransport)
                 return