These two events are sent to every sub-window of a toplevel when they change state.

PREDEFINED VIRTUAL EVENTS.

The ButtonPress and ButtonRelease events are generated when the user presses or releases a mouse button.

EVENT TYPES.

EVENT TYPES.

EVENT TYPES.

PREDEFINED VIRTUAL EVENTS.

A Colormap event is generated whenever the colormap associated with a window has been changed, installed, or uninstalled.

A Configure event is sent to a window whenever its size, position, or border width changes, and sometimes when it has changed position in the stacking order.

EVENT TYPES.

PREDEFINED VIRTUAL EVENTS.

EVENT TYPES.

PREDEFINED VIRTUAL EVENTS.

EVENT TYPES.

EVENT TYPES.

EVENT TYPES.

An Enter event is sent to a window when the pointer enters that window, and a Leave event is sent when the pointer leaves it.If there is a pointer grab in effect, Enter and Leave events are only delivered to the window owning the grab.

An Expose event is generated whenever all or part of a window should be redrawn (for example, when a window is first mapped or if it becomes unobscured).

The FocusIn and FocusOut events are generated whenever the keyboard focus changes.

EVENT TYPES.

The events Gravity and Reparent are not normally delivered to Tk applications.

PREDEFINED VIRTUAL EVENTS.

The KeyPress and KeyRelease events are generated whenever a key is pressed or released.

EVENT TYPES.

EVENT TYPES.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

The Map and Unmap events are generated whenever the mapping state of a window changes.Windows are created in the unmapped state.

These events are not normally delivered to Tk applications.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

EVENT TYPES.

Many contemporary mice support a mouse wheel, which is used for scrolling documents without using the scrollbars.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

A Property event is sent to a window whenever an X property belonging to that window is changed or deleted.

PREDEFINED VIRTUAL EVENTS.

EVENT TYPES.

EVENT TYPES.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

PREDEFINED VIRTUAL EVENTS.

EVENT TYPES.

A window is said to be obscured when another window above it in the stacking order fully or partially overlaps it.

PREDEFINED VIRTUAL EVENTS.