nvda

157ac490 - UIA: Support half checked state for checkboxes and toggle buttons (#13980)

UIA: Support half checked state for checkboxes and toggle buttons (#13980) Fixes #13975 Summary of the issue: NVDA does not support 3 state checkboxes and toggle buttons with UIA. When using WPF or Microsoft edge UIA. Description of user facing changes When a checkbox is partially checked, NVDA will report half checked, same as the turn features control panel applet. Description of development approach in NVDAObjects\UIA, if toggle state is indeterminate, add half checked state