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 . |