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Posez votre questionComponent's
Componentis directly under the mouse
null.
Componentis not showing on the screen, this method
nulleven if the mouse pointer is above the area
Componentwould be displayed.
Component
Components or native windows, this method returns a non-null
Component.
Containers it returns a non-null value if the mouse is
Containeritself or above any of its descendants.
Container.getMousePosition(boolean)if you need to exclude children.
Componentis under the mouse
null, mouse
Component.