Struct

GdkEventScroll

Description [src]

struct GdkEventScroll {
  GdkEventType type;
  GdkWindow* window;
  gint8 send_event;
  guint32 time;
  gdouble x;
  gdouble y;
  GdkModifierType* state;
  GdkScrollDirection direction;
  GdkDevice* device;
  gdouble x_root;
  gdouble y_root;
  gdouble delta_x;
  gdouble delta_y;
  guint is_stop : 1;
}

Generated from button presses for the buttons 4 to 7. Wheel mice are usually configured to generate button press events for buttons 4 and 5 when the wheel is turned.

Some GDK backends can also generate “smooth” scroll events, which can be recognized by the GDK_SCROLL_SMOOTH scroll direction. For these, the scroll deltas can be obtained with gdk_event_get_scroll_deltas().

Structure members

`type`	The type of the event (`GDK_SCROLL`).
`window`	The window which received the event.
`send_event`	`TRUE` if the event was sent explicitly.
`time`	The time of the event in milliseconds.
`x`	The x coordinate of the pointer relative to the window.
`y`	The y coordinate of the pointer relative to the window.
`state`	A bit-mask representing the state of the modifier keys (e.g. Control, Shift and Alt) and the pointer buttons. See `GdkModifierType`.
`direction`	The direction to scroll to (one of `GDK_SCROLL_UP`, `GDK_SCROLL_DOWN`, `GDK_SCROLL_LEFT`, `GDK_SCROLL_RIGHT` or `GDK_SCROLL_SMOOTH`).
`device`	The master device that the event originated from. Use `gdk_event_get_source_device()` to get the slave device.
`x_root`	The x coordinate of the pointer relative to the root of the screen.
`y_root`	The y coordinate of the pointer relative to the root of the screen.
`delta_x`	The x coordinate of the scroll delta.
`delta_y`	The y coordinate of the scroll delta.
`is_stop`	No description available.