Audio Unit Resizable UI

Question

Created Jun ’20

Replies 2

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Is there a standard UI resizing protocol for Audio Unit? I want my plugin's UI to be resizable by the user but can't figure out how to do this natively. All searches lead to the resizing by audio unit's intent not user's.

I know I can emulate resizing by capturing mouse events and resizing the view as a reaction to them, but what about native support? I noticed that if I move cursor to AudioUnit's UI window edges in Logic and GarageBand, cursor changes to the one of resizable window, so it seems that there should be a way.

Thanks in advance.

Boost

Answer 1

Media Engineer OP

Apple

Jun ’20

There is a supportedViewConfigurations property in AUAudioUnit, which allows the host to query multiple view configurations with different sizes.

Also, most Audio Unit hosts do listen to NSViewFrameDidChangeNotification notifications posted on the Audio Unit's custom view.

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Answer 2

vokbuz OP

Jun ’20

Also, most Audio Unit hosts do listen to NSViewFrameDidChangeNotification notifications posted on the Audio Unit's custom view.

This is resizing initiated by the Audio Unit. There is plenty of information on this. I'm looking for inverted flow. How window owner (host) can tell to the custom view it is time to resize as the user resized the window (if there is a possibility of course).

There is a supportedViewConfigurations property in AUAudioUnit, which allows the host to query multiple view configurations with different sizes.

Will host allow the user to resize window by grabbing window edge with these? It doesn't look like that.

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