mouse_drag should have special cursor when button is held.

[Ecnassianer]

When a container has mouse_drag set as it's mouse_mode, it should display an appropriate cursor when the mouse button is held down over non-active elements.

Something like this:


Or a clasped hand like this:


If mouse_drag is enabled, it might also be desirable to show the open hand while over non-active elements, and the closed hand when the mouse button is held down:


This cursor should also show up if a user clicks on an active element and begins dragging (since megazine now correctly interprets this as dragging the container contents and not interacting with the active element).

[Ecnassianer]

Several of my users have been confused about being able to mouse_drag my book around, and this cursor would be an immediate and intuitive clue about how it works.

[Florian Nücke]

Nice idea, added in revision 452.