Install a macOS-specific secure text field hotkey handler so Command-A selects the full contents of password controls when Cocoa does not route the shortcut through wxWidgets accelerators. Keep the existing wxWidgets accelerator handler for Command-V and Command-A, and recognize the standard paste/select-all IDs when they do reach the C++ event path.
Add Objective-C++ compilation support for the macOS helper and include it in the GUI target only on macOS.
Fixes https://github.com/veracrypt/VeraCrypt/issues/1567
Mounir IDRASSI
Mounir IDRASSI