Nice! Using the TVI_* values defined in commctrl.h instead of the ones documented in Win32::GUI works, both for x64 and x86.

Not that I'm any the wiser why it does. I had looked up the macro but was intimidated by the ULONG_PTR part (is that a cast?). I can also make no sense of the HTREEITEM macro but tend to think that it is not the same as a HWND used by handle_From() which screws up the advertised 0xFFFF000* values.

In reply to Re^2: x64 Win32::GUI TreeView broken, question and "fix" included by tomsell
in thread x64 Win32::GUI TreeView broken, question and "fix" included by tomsell

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