GdkWin32: One modal window blocks all windows
GdkWin32 keeps track of a single chain of modal windows.
Suppose you have two top-level windows: A and B. If B shows a modal window (e.g. a dialog), it's not possible to interact with A anymore.
This doesn't happen on X11 / Wayland.
Related issue: #636 (closed)
Edited by Luca Bacci