macOS Carbon envents urgent help needed!

[ZiggyH]

Hi all.

I'm working on a VST plugin, which have to support both cocoa and carbon.
The cocoa version is ready, but i still have some troubles with carbon.

I really need help on this...

My main problem is to catch the kEventTextInputUnicodeForKeyEvent from the kEventClassTextInput class.

The host provide me a WindowRef. Then i create an HIView, i Register envent handlers, then add the HIView to the window.

I'm like this :

// ============================================================================
// Control Creation
// ============================================================================
UInt32 features =	  kControlSupportsDragAndDrop
				| kControlSupportsFocus
				| kControlHandlesTracking
				| kControlSupportsEmbedding
				| kHIViewIsOpaque
				| kHIViewFeatureDoesNotUseSpecialParts
				| kHIViewFeatureGetsFocusOnClick;
	
	
Rect r = {(short)rcSize.top, (short)rcSize.left, (short)rcSize.bottom, (short)rcSize.right};
	
OSStatus status = CreateUserPaneControl (0, &r, features, &m_ControlRef);
if (status != noErr)
{
	ASSERT(0);
}

Then the events handlers:

//============================================================================
// Control Event Handler
//============================================================================
const EventTypeSpec controlEventTypes[] = {	
		{ kEventClassControl,	kEventControlDraw},
		{ kEventClassControl,	kEventControlHitTest},
		{ kEventClassControl,	kEventControlClick},
		{ kEventClassMouse,		kEventMouseWheelMoved},
		{ kEventClassControl,	kEventControlDragEnter},
		{ kEventClassControl,	kEventControlDragWithin},
		{ kEventClassControl,	kEventControlDragLeave},
		{ kEventClassControl,	kEventControlDragReceive},
		{ kEventClassControl,	kEventControlInitialize},
		{ kEventClassControl,	kEventControlGetClickActivation},
		{ kEventClassControl,	kEventControlGetOptimalBounds},
		{ kEventClassScrollable,kEventScrollableGetInfo},
		{ kEventClassScrollable,kEventScrollableScrollTo},
		{ kEventClassControl,	kEventControlSetFocusPart},
		{ kEventClassControl,	kEventControlGetFocusPart},
		{ kEventClassControl,	kEventControlTrackingAreaExited}
	};
	
InstallControlEventHandler(m_ControlRef, carbonEventHandler, GetEventTypeCount(controlEventTypes), controlEventTypes, this, NULL);

//============================================================================
// Input Event Handler
//============================================================================
const EventTypeSpec keyInputEvents[] = {
		{ kEventClassTextInput, kEventTextInputUnicodeForKeyEvent },
		{ kEventClassWindow,	kEventWindowFocusAcquired },
		{ kEventClassWindow,	kEventWindowFocusRelinquish },
		{ kEventClassWindow,	kEventTextInputUpdateActiveInputArea},
		{ kEventClassKeyboard,	kEventRawKeyDown},
		{ kEventClassKeyboard,	kEventRawKeyUp},
		{ kEventClassKeyboard,	kEventRawKeyRepeat}
	};
	
InstallWindowEventHandler (HostWindowRef, carbonEventHandler, GetEventTypeCount(keyInputEvents), keyInputEvents, this, &m_KeyboardEventHandler);

//============================================================================
// Window Mouse Event Handler
//============================================================================
	const EventTypeSpec mouseEvents[] = {
		{ kEventClassMouse, kEventMouseDown },
		{ kEventClassMouse, kEventMouseUp },
		{ kEventClassMouse, kEventMouseMoved },
		{ kEventClassMouse, kEventMouseDragged }
	};
	
InstallWindowEventHandler(HostWindowRef, carbonMouseEventHandler, GetEventTypeCount(mouseEvents), mouseEvents, this, &m_MouseEventHandler);

then i add the control to the window :

//============================================================================
// Add control to window
//============================================================================
if (isWindowComposited(HostWindowRef))
{
	HIViewRef contentView;
	HIViewRef rootView = HIViewGetRoot(HostWindowRef);
		
	if (HIViewFindByID(rootView, kHIViewWindowContentID, &contentView) != noErr)
	{
		contentView = rootView;
	}
		
	HIViewAddSubview (contentView, m_ControlRef);
}
else
{
	ControlRef rootControl;
	GetRootControl(HostWindowRef, &rootControl);
		
	if (rootControl == NULL)
	{
		CreateRootControl(HostWindowRef, &rootControl);
	}
	EmbedControl(m_ControlRef, rootControl);
}

//============================================================================
// Add Tracking area
//============================================================================
	
HIViewTrackingAreaRef trackingAreaRef;	// will automatically removed if view is destroyed
HIViewNewTrackingArea (m_ControlRef, 0, 0, &trackingAreaRef);

I received the raw keys events, and others, but never kEventTextInputUnicodeForKeyEvent.

I can't figure what i'm doing wrong with this event.

Any help will be appreciated.

Thanks.

 

[Member(TM)]

If I remember correctly, you cannot use InstallWindowEventHandler with kEventClassTextInput events, it works only with raw key events. Instead, you should install a separate handler:

const EventTypeSpec textInputEvents[] = {
		{ kEventClassTextInput, kEventTextInputUnicodeForKeyEvent }
};
InstallEventHandler(GetUserFocusEventTarget(), carbonEventHandler, GetEventTypeCount(textInputEvents), textInputEvents, this, &m_TextInputEventHandler);

(I haven't checked for syntax errors, but that's the idea).