[Ohrrpgce] SVN: james/10314 MenuDef menus in game now support right-drag scrolling if they are long

[subversion at HamsterRepublic.com]

james
2018-04-05 15:25:01 -0700 (Thu, 05 Apr 2018)
311
MenuDef menus in game now support right-drag scrolling if they are long enough to be scrollable.

Right-click to close a menu only happens if the right mouse button release is not the end of a drag.

Left-click outside a menu rect to close only happens if the left mouse button release is not the end of a drag.
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U   wip/common.rbas
U   wip/game.bas