bicarusandGitHub 5af3e0d494 imgui: migrate to new event-based IO (#604) ...

## Link to GitHub Issue or related Pull Request, if one exists
#287

## Description of change
Switch over to new event-based I/O system in ImGui so that we can keep
up with ImGui updates.

Unlike #287, this change does not modify how mouse position is handled.
That continues to be supported by newer versions of ImGui.

## Testing
wip

2026-04-02 21:00:42 -07:00

..

spice2x

imgui: migrate to new event-based IO (#604)

2026-04-02 21:00:42 -07:00