I am using my own GUI system and I still have this little hickup, whenever the mouse moves outside the window when clicked (dragging a slider for example), the mouseup is not registered, as it happens outside the window.
In Windows you normally just call CaptureMouse/ReleaseMouse on a MouseDown/Up … how is the best way to solve this in MonoGame?
Must not be cross-platform for me. user32.dll the only way?