Currently in our UIA migration, checkbox widgets are not treated by NVDA as checkboxes, even when they have the checkbox role and provide the toggle pattern. I do not currently know why that is. I have filed an issue on the NVDA repository in the hopes of uncovering more information. Windows Narrator responds as expected to checkboxes.

There are three cases that I am/have been invetigating:

• When hovering the cursor over a checkbox, nothing is read indicating it is a checkbox.
  • This is apparently intended behavior with NVDA
• When changing the state of a focused checkbox, nothing is read to indicate the change of state.
  • This can be addressed by modifying AXPlatformNodeWin::MojoEventToUIAProperty
• When the user pressed NVDA+UP with a checkbox focused, the checkbox info is not read aloud.
  • This should be the case, as NVDA+UP is only meant to read textual information. NVDA+TAB is a separate keyboard command for reading the current focus, and it does in fact read the checkbox state.