Correct GTK keycodes, and fill in lots more for Winforms. #2415
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Outdated suggestions cannot be applied.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.
GTK's key handlers had a big TODO block that meant it wasn't possible to build key handlers for ; page up/down, and more.
Winforms had a similar set of omissions.
Cocoa had a missing key code for semicolon, and bunch of problems with shift handling.
Fixes #2414.
PR Checklist: