Add switch "NotifyUIAProviderTheText" to control screen Reader to announce the content of RichTextBox #12986
+57
−2
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fixes #12772
Proposed changes
System.Windows.Forms.RichTextBox.NotifyUIAProviderTheText
to control screen Reader to announce the content of RichTextBoxCustomer Impact
Regression?
Risk
Screenshots
Before
When NVDA get focus, the entire content gets read, not just the currently focused line

After
When the switch is on, Narrator, JAWS and NVDA will read the full contents of the RichTextBox.

When the switch is off, JAWS and NVDA will only read the contents of the currently focused line, while Narrator will not read the contents of the RichTextBox.
Test methodology
Test environment(s)
Microsoft Reviewers: Open in CodeFlow