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Re: HIToolbars without a standard event handler

Tomas

I'm implementing a HIToolbar in my app, and I want to use my own Carbon event handlers to handle the toolbar instead of the standard event handler (which breaks some stuff for me). What kind of handlers should I register for to handle (hilite toolbar items, etc) the same stuff the standard handler does for toolbars, and what would those handlers do?

To get an HIToolbar to work in my PowerPlant app, I ended up using the standard handler but adding my own to avoid some of the breaking:

static const EventTypeSpec kStandardEvents[] = {
{ kEventClassWindow, kEventWindowClickContentRgn },
{ kEventClassWindow, kEventWindowDrawContent },
{ kEventClassWindow, kEventWindowUpdate }, // I don't see it called, but Apple uses it
{ kEventClassWindow, kEventWindowActivated },
{ kEventClassWindow, kEventWindowDeactivated },
{ kEventClassWindow, kEventWindowClose }, // Called while window still exists
{ kEventClassWindow, kEventWindowToolbarSwitchMode }
};

// We need the standard handler in order to get the toolbar to work. Unfortunately,
// this also messes up PowerPlant
s = ::InstallStandardEventHandler(::GetWindowEventTarget(window));
s = ::InstallWindowEventHandler(window, UndoStandardHandler,
GetEventTypeCount(kStandardEvents), kStandardEvents, this, &fUndoHandlerRef);
--

David Dunham     A Sharp, LLC
Voice/Fax: 206 783 7404     http://a-sharp.com
Efficiency is intelligent laziness.
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