Method
GdkEventget_history
Declaration [src]
GdkTimeCoord*
gdk_event_get_history (
GdkEvent* event,
guint* out_n_coords
)
Description [src]
Retrieves the history of the device that event is for, as a list of
time and coordinates.
The history includes positions that are not delivered as separate events
to the application because they occurred in the same frame as event.
Note that only motion and scroll events record history, and motion events do it only if one of the mouse buttons is down.
Parameters
out_n_coords |
guint* |
Return location for the length of the returned array. |
|
| The argument will be set by the function. | |
| The instance takes ownership of the data, and is responsible for freeing it. |
Return value
| Returns: | An array of GdkTimeCoord |
An array of time and coordinates. |
|
The length of the array is in the out_n_coords argument. | |
| The caller of the function takes ownership of the data container, but not the data inside it. | |
The return value can be NULL. |